Dab tsi tsis yuav tsum tau them sai sai rau thaum debugging lub hnub ci inverter?

Dab tsi tsis yuav tsum tau them sai sai rau thaum debugging lub hnub ci inverter?

1. Input parameters

1.1 DC input voltage ntau
DC input voltage ntau yog ib qho ntawm cov tsis tseem ceeb thaum debugging lub hnub ci inverter. Cov zis hluav taws xob ntawm lub hnub ci vaj huam sib luag yuav sib txawv vim muaj ntau yam xws li lub teeb siv thiab kub. Lub inverter yuav tsum muaj peev xwm txais tau DC input voltage nyob rau hauv ib tug tej yam ntau yam los xyuas kom meej ib txwm ua hauj lwm nyob rau hauv txawv ib puag ncig tej yam kev mob. Piv txwv li, DC input voltage ntau ntawm ib qho me mehnub ci inverterfeem ntau yog nyob nruab nrab ntawm 100V thiab 500V, thaum lub input voltage ntau ntawm ib tug loj coj mus muag inverter tej zaum yuav dav, xws li 150V rau 800V. Yog hais tias lub input voltage ntau tshaj qhov no, lub inverter yuav nkag mus rau hauv lub xeev kev tiv thaiv thiab tsis ua hauj lwm kom zoo, thiab tej zaum yuav ua rau puas lub sab hauv Cheebtsam. Yog li ntawd, thaum debugging, nws yog ib qho tsim nyog los xyuas kom meej tias qhov tso zis voltage yam ntxwv ntawm lub hnub ci vaj huam sib luag tiag tiag siv rau DC input voltage ntau ntawm lub inverter.

1.2 Qhov siab tshaj tawm tam sim no
Qhov siab tshaj plaws input tam sim no txiav txim siab tus nqi siab tshaj plaws tam sim no uas lub inverter tuaj yeem ua tau. Qhov ntsuas no yog qhov tseem ceeb los xyuas kom muaj kev nyab xeeb ntawm lub inverter ntawm lub zog hluav taws xob. Yog hais tias lub input tam sim no tshaj tus nqi siab tshaj, nws yuav ua rau overheating nyob rau hauv lub inverter, puas lub hwj chim pab kiag li lawm, thiab txawm yuav ua rau muaj kev nyab xeeb xwm txheej xws li hluav taws. Piv txwv li, lub hnub ci inverter nrog lub zog ntsuas ntawm 5kW feem ntau muaj qhov siab tshaj plaws tam sim no ntawm 20A thiab 30A. Thaum lub sij hawm commissioning txheej txheem, cov tswv yim tam sim no yuav tsum tau saib xyuas los ntawm cov cuab yeej xws li tam sim no sensors kom paub tseeb tias nws tsis tshaj qhov siab tshaj plaws input tam sim no txwv ntawm inverter. Tsis tas li ntawd, qhov siab tshaj plaws tso zis tam sim no ntawm lub hnub ci vaj huam sib luag nyob rau hauv cov teeb pom kev sib txawv thiab cov kev sib txuas ua ke yuav tsum raug txiav txim siab los xyuas kom meej tias tam sim no ntawm tag nrho cov kab ke nyob rau hauv qhov chaw nyab xeeb.

1.3 MPPT voltage ntau
Qhov siab tshaj plaws lub zog taw tes nrhiav (MPPT) qhov hluav taws xob ntau yog qhov ntsuas uas yuav tsum tau tsom rau thaum ua haujlwm lub hnub ci inverter. Lub zog tso zis ntawm lub hnub ci vaj huam sib luag yog nonlinear nrog rau qhov voltage thiab tam sim no, thiab muaj lub zog siab tshaj plaws. MPPT muaj nuj nqi ua rau lub inverter ib txwm ua haujlwm ntawm lub zog siab tshaj plaws ntawm lub hnub ci vaj huam sib luag, yog li ua kom lub zog hloov pauv tau zoo. Lub MPPT voltage ntau ntawm lub inverter feem ntau sib xws cov zis voltage ntau ntawm lub hnub ci vaj huam sib luag. Piv txwv li, rau lub inverter nrog MPPT voltage ntau ntawm 150V rau 400V, yog hais tias qhov tso zis voltage ntawm lub hnub ci vaj huam sib luag nyob rau hauv no ntau yam, lub inverter yuav ua tau zoo MPPT tswj. Thaum lub sij hawm commissioning, nws yog tsim nyog los xyuas kom meej tias cov zis voltage ntawm lub hnub ci vaj huam sib luag nyob rau hauv lub MPPT voltage ntau ntawm lub inverter thiab hais tias MPPT algorithm ntawm lub inverter yuav raug taug qab lub siab tshaj plaws zog point. Los ntawm kev tswj hwm MPPT kom raug, tag nrho cov txiaj ntsig ntawm lub hnub ci hluav taws xob tsim hluav taws xob tuaj yeem txhim kho, thiab lub zog tsim hluav taws xob feem ntau tuaj yeem nce los ntawm 10% mus rau 30%.

2. Cov khoom tso tawm

2.1 Cov zis voltage
Cov zis voltage yog ib qho tseem ceeb parameter thaum lub sij hawm commissioning ntawm lub hnub ci inverter, uas yog ncaj qha ntsig txog seb lub inverter yuav muab ruaj khov thiab txhim khu kev qha zog rau lub load. Cov zis hluav taws xob ntawm lub inverter feem ntau xav tau kom phim cov kab hluav taws xob hluav taws xob lossis qhov ntsuas hluav taws xob ntawm cov khoom siv thauj khoom. Piv txwv li, nyob rau hauv ib daim phiaj-txuas hnub ci inverter, cov zis voltage feem ntau yog teem nyob ib ncig ntawm 220V los yog 380V kom tau raws li cov kev xav tau ntawm tsev neeg los yog ua lag luam hluav taws xob. Rau off-daim phiaj hnub ci inverters, cov zis voltage yuav txawv raws li qhov sib txawv load, xws li 12V, 24V lossis 48V. Thaum lub sij hawm commissioning txheej txheem, ib tug high-precision voltmeter los yog oscilloscope yog xav tau los ntsuas qhov loj thiab waveform ntawm cov zis voltage. Kev ruaj ntseg ntawm cov zis hluav taws xob kuj tseem ceeb heev, thiab nws qhov kev hloov pauv feem ntau yuav tsum tau tswj tsis pub dhau ± 5% ntawm qhov ntsuas hluav taws xob. Yog tias qhov tso zis hluav taws xob siab dhau lossis qis dhau, cov khoom siv thauj khoom yuav raug puas los yog ua haujlwm tsis zoo. Tsis tas li ntawd, qhov tso zis hluav taws xob ntawm lub inverter yuav tsum muaj cov yam ntxwv zoo dynamic teb los tiv thaiv cov kev hloov pauv sai hauv kev thauj khoom. Piv txwv li, thaum lub load dheev nce los yog txo, lub inverter yuav tsum tau kho cov zis voltage mus rau ib tug ruaj khov lub xeev nyob rau hauv ib tug luv luv lub sij hawm los xyuas kom meej lub stability ntawm lub lag luam.

2.2 tso zis zaus
Qhov tso zis zaus yog lwm qhov tseem ceeb parameter thaum debugging lub hnub ci inverter, tshwj xeeb tshaj yog rau daim phiaj-txuas inverters, nws cov zis zaus yuav tsum nruj me ntsis synchronized nrog cov kab sib chaws zaus. Daim phiaj zaus feem ntau yog 50Hz lossis 60Hz, thiab cov zis zaus ntawm lub inverter yuav tsum raug kaw ntawm qhov zaus no kom ntseeg tau tias kev sib kis ntawm lub zog thiab kev ua haujlwm ruaj khov ntawm daim phiaj. Thaum lub sij hawm debugging txheej txheem, ib tug zaus ntsuas los yog oscilloscope yuav tsum tau ntsuas qhov loj thiab stability ntawm cov zis zaus. Qhov tseeb ntawm qhov tso zis zaus yuav tsum tau tswj nyob rau hauv ± 0.1Hz. Yog tias qhov tso zis ntau zaus tsis sib haum nrog cov kab sib txuas, nws yuav ua rau muaj qhov sib txawv ntawm kab sib chaws, cuam tshuam rau kev ua haujlwm ntawm lwm yam khoom siv, thiab tej zaum yuav ua rau daim phiaj tsis ua haujlwm. Rau off-daim phiaj hnub ci inverters, lawv cov zis zaus kuj yuav tsum tau nyob ruaj khov kom tau raws li qhov xav tau ntawm cov khoom siv thauj khoom. Piv txwv li, qee cov khoom siv hluav taws xob muaj kev xav tau siab rau kev ruaj ntseg zaus. Yog tias qhov tso zis ntau zaus tsis ruaj khov, nws yuav ua rau kev ua haujlwm tsis zoo lossis kev puas tsuaj rau cov khoom siv. Yog li ntawd, thaum lub sij hawm debugging, nws yog ib qho tsim nyog los xyuas kom meej tias qhov zaus tswj Circuit Court ntawm lub inverter tuaj yeem raug taug qab thiab kho cov zis zaus kom nws ib txwm nyob hauv qhov kev teev tseg.

2.3 Tso zis zog
Cov zis hluav taws xob yog qhov taw qhia tseem ceeb rau kev ntsuas kev ua haujlwm ntawm hnub ci inverters. Nws qhia txog lub zog hloov dua siab tshiab ntawm lub inverter hauv ib lub sijhawm. Thaum lub sij hawm debugging txheej txheem, cov zis hwj chim ntawm lub inverter yuav tsum tau raug ntsuas thiab ntsuam xyuas kom paub tseeb tias nws muaj peev xwm ua tau raws li qhov xav tau ntawm lub load. Lub zog tso zis yog nyob ntawm lub zog nkag ntawm lub hnub ci vaj huam sib luag, kev hloov pauv kev ua haujlwm ntawm lub inverter, thiab qhov loj ntawm qhov load. Piv txwv li, lub hnub ci inverter nrog lub zog ntsuas ntawm 5kW yuav tsum muaj lub zog tso zis ze li 5kW nyob rau hauv qhov zoo tagnrho. Txawm li cas los xij, hauv kev ua haujlwm tiag tiag, vim muaj ntau yam xws li lub teeb siv, qhov kub thiab txias, inverter poob, thiab lwm yam, lub zog tso zis yuav qis dua lub zog ntsuas. Thaum lub sij hawm debugging, nws yog ib qho tsim nyog los ntsuas qhov tso zis hluav taws xob los ntawm cov khoom siv xws li lub zog ntsuas hluav taws xob thiab kho nws raws li qhov tseeb ntawm cov khoom thauj. Kev hloov dua siab tshiab ntawm lub inverter kuj yog ib qho tseem ceeb cuam tshuam rau lub zog tso zis, uas feem ntau yuav tsum nyob nruab nrab ntawm 80% thiab 90%. Kev hloov pauv siab dua txhais tau tias lub hnub ci zog ntau dua tuaj yeem hloov mus rau hauv hluav taws xob hluav taws xob, yog li txhim kho kev ua haujlwm ntawm tag nrho lub hnub ci zog tsim hluav taws xob. Tsis tas li ntawd, nws tseem yuav tsum tau xav txog qhov tso zis hluav taws xob cov yam ntxwv ntawm lub inverter nyob rau hauv qhov sib txawv load, xws li lub teeb load, tag nrho load thiab overload. Piv txwv li, nyob rau hauv lub teeb load, lub zog tso zis ntawm lub inverter yuav txo, tab sis nws yuav tsum nyob twj ywm ruaj; nyob rau hauv tag nrho cov load, lub inverter yuav tsum muaj peev xwm tso zis lub zog ntsuas; nyob rau hauv overload, lub inverter yuav tsum muaj ib tug tej yam overload muaj peev xwm, tab sis nws tsis tuaj yeem tshaj nws qhov kev tso cai, txwv tsis pub cov cuab yeej yuav puas.

3. Kev ua tau zoo thiab kev ua haujlwm tsis zoo

3.1 Conversion efficiency
Conversion efficiency yog ib qho ntawm cov cim tseem ceeb los ntsuas qhov kev ua tau zoo ntawm hnub ci inverters. Nws qhia txog lub peev xwm ntawm lub inverter los hloov cov tam sim no ncaj qha rau hauv alternating tam sim no. Feem ntau hais lus, kev hloov dua siab tshiab ntawm hnub ci inverter yog nyob nruab nrab ntawm 80% thiab 95%. Piv txwv li, kev hloov dua siab tshiab ntawm high-efficiency ib-theem microinverters tuaj yeem ncav cuag ntau dua 95%, thaum qhov kev hloov pauv ntawm peb-theem hlua inverters feem ntau yog 90% thiab 95%. High conversion efficiency txhais tau hais tias ntau lub hnub ci zog tuaj yeem hloov mus ua hluav taws xob zoo, yog li ua kom lub zog tsim hluav taws xob ntawm tag nrho lub hnub ci hluav taws xob tsim hluav taws xob. Thaum lub sij hawm debugging txheej txheem, cov cuab yeej ntsuas hluav taws xob muaj tseeb yog xav tau los ntsuas qhov kev hloov pauv ntawm lub inverter kom ntseeg tau tias nws ua tau raws li cov qauv tsim. Tsis tas li ntawd, kev hloov dua siab tshiab ntawm lub inverter yuav cuam tshuam los ntawm yam xws li qhov kub thiab txias. Piv txwv li, thaum lub ambient kub siab dhau lawm, lub conversion efficiency ntawm lub inverter yuav txo. Yog li ntawd, thaum lub sij hawm debugging, nws yog tsim nyog los xav txog qhov kub thiab txias tej yam kev mob nyob rau hauv lub tiag tiag kev khiav hauj lwm ib puag ncig los xyuas kom meej tias lub inverter muaj peev xwm tswj tau ib tug high conversion efficiency ntawm txawv kub.

3.2 Lub Zog Muaj Zog
Lub zog tseem ceeb yog qhov tseem ceeb rau kev ntsuas qhov zoo ntawm lub zog inverter tso zis. Nws qhia txog qhov piv ntawm cov khoom siv hluav taws xob tawm ntawm lub inverter rau lub zog pom. Rau daim phiaj-txuas hnub ci inverters, lub hwj chim feem ntau yuav tsum tau nyob ze rau 1 kom ntseeg tau tias qhov ua tau zoo ntawm lub zog xa hluav taws xob thiab kev ruaj ntseg ntawm daim phiaj hluav taws xob. Piv txwv li, nyob rau hauv cov teb chaws Europe, ntau lub teb chaws xav tau lub hwj chim ntawm daim phiaj-txuas inverters kom siab tshaj 0.95. Thaum lub sij hawm debugging txheej txheem, lub zog ntawm lub inverter yuav tsum tau ntsuas los ntawm cov cuab yeej xws li lub hwj chim analyzer thiab kho raws li qhov yuav tsum tau ntawm daim phiaj fais fab. Lub zog hloov kho muaj peev xwm ntawm lub inverter kuj tseem ceeb heev. Qee qhov kev hloov pauv siab heev tuaj yeem ua tiav qhov hloov kho lub zog ntawm 0.9 thiab 1 kom hloov mus rau qhov sib txawv ntawm kab sib chaws thiab cov kev cai thauj khoom. Piv txwv li, thaum lub load yog lub teeb, lub hwj chim qhov tseem ceeb yuav raug kho kom txo tau cov zis ntawm reactive zog; Thaum lub load hnyav, lub hwj chim qhov tseem ceeb tuaj yeem hloov kho kom txhim kho lub zog xa hluav taws xob. Los ntawm kev hloov kho lub zog muaj tseeb, qhov rov ua haujlwm tsis zoo ntawm daim phiaj hluav taws xob tuaj yeem txo qis thiab kev ua haujlwm tag nrho ntawm daim phiaj hluav taws xob tuaj yeem txhim kho.

3.3 Harmonic cov ntsiab lus
Harmonic cov ntsiab lus yog ib qho tseem ceeb ntsuas ntsuas qhov zoo ntawm lub zog tso zis ntawm lub inverter. Nws cuam tshuam qhov degree ntawm distortion ntawm cov zis voltage thiab tam sim no waveform ntawm lub inverter. Cov zis hluav taws xob thiab tam sim no ntawm lub hnub ci inverter yuav muaj qee yam ntawm cov khoom sib haum xeeb, uas yuav muaj kev cuam tshuam tsis zoo rau hauv daim phiaj hluav taws xob thiab cov khoom siv thauj khoom. Piv txwv li, kev sib haum xeeb yuav ua rau muaj teeb meem xws li kab hluav taws xob hloov pauv, cov khoom siv hluav taws xob overheating, thiab ua haujlwm tsis zoo ntawm cov cuab yeej tiv thaiv. Thaum lub sij hawm debugging txheej txheem, nws yuav tsum tau siv cov khoom xws li harmonic analyzers los ntsuas cov harmonic cov ntsiab lus ntawm lub inverter thiab xyuas kom meej tias nws ua tau raws li qhov yuav tsum tau ntawm cov qauv tsim. Feem ntau hais lus, cov ntsiab lus harmonic ntawm lub inverter yuav tsum tau tswj nyob rau hauv ib tug tej yam ntau yam. Piv txwv li, raws li cov qauv ntawm International Electrotechnical Commission (IEC), tag nrho cov harmonic distortion (THD) ntawm inverter yuav tsum tsawg dua 5%. Qee cov inverters siab heev siv cov cuab yeej lim dej siab thiab tswj cov txheej txheem kom txo cov ntsiab lus sib haum xeeb mus rau qib qis. Piv txwv li, inverters siv lub tshuab lim dej tuaj yeem txo THD kom tsawg dua 2%. Los ntawm kev tswj hwm kev sib raug zoo, cov zis hluav taws xob zoo ntawm lub inverter tuaj yeem txhim kho, qhov cuam tshuam ntawm daim phiaj hluav taws xob thiab cov khoom siv thauj khoom tuaj yeem raug txo, thiab kev ua haujlwm nyab xeeb thiab ruaj khov ntawm lub hnub ci hluav taws xob tsim hluav taws xob tuaj yeem ua kom ntseeg tau.

4. Kev tiv thaiv muaj nuj nqi

4.1 Kev tiv thaiv overvoltage
Kev tiv thaiv overvoltage yog ib qho tseem ceeb tiv thaiv kev ua haujlwm nyob rau hauv lub hnub ci inverter commissioning. Thaum cov zis hluav taws xob ntawm lub inverter tshaj li qhov teeb meem kev nyab xeeb, lub overvoltage tiv thaiv mechanism yuav pib sai sai los tiv thaiv kev puas tsuaj rau cov khoom siv thauj khoom. Piv txwv li, nyob rau hauv daim phiaj-txuas hnub ci inverter, yog tias daim phiaj hluav taws xob tam sim ntawd nce vim yog qhov txhaum lossis lwm yam laj thawj, lub inverter qhov kev tiv thaiv overvoltage yuav raug txiav tawm thaum qhov hluav taws xob ntau tshaj 10% mus rau 15% ntawm qhov ntsuas hluav taws xob kom muaj kev ruaj ntseg ntawm cov khoom siv thauj khoom. Nyob rau hauv ib tug off-grid system, yog hais tias lub voltage siab dhau lawm tom qab lub roj teeb yog tag nrho them, lub inverter lub overvoltage tiv thaiv kuj yuav ua nyob rau hauv lub sij hawm kom tsis txhob muaj kev puas tsuaj rau lub roj teeb thiab load. Thaum lub sij hawm commissioning txheej txheem, nws yog ib qho tsim nyog yuav tsum tau ua kom raug qhov pib ntawm kev tiv thaiv overvoltage raws li qhov sib txawv ntawm daim ntawv thov scenarios thiab load yam ntxwv, thiab sim cov lus teb ceev thiab kev ntseeg siab ntawm kev tiv thaiv muaj nuj nqi los ntawm simulating overvoltage tej yam kev mob los xyuas kom meej tias nws muaj peev xwm sai thiab meej txiav tawm Circuit Court thaum lub voltage nce txawv txav.

4.2 Kev tiv thaiv overcurrent
Kev tiv thaiv overcurrent muaj nuj nqi yog qhov tseem ceeb rau kev ua haujlwm nyab xeeb ntawm hnub ci inverters. Thaum cov zis tam sim no ntawm lub inverter tshaj nws qhov ntsuas tam sim no lossis qhov kev txwv kev nyab xeeb, cov txheej txheem tiv thaiv overcurrent yuav pib tam sim ntawd txhawm rau tiv thaiv kev puas tsuaj rau cov khoom siv hauv inverter thiab overload ntawm cov khoom siv. Piv txwv li, lub hnub ci inverter nrog lub zog ntsuas ntawm 3kW muaj qhov tso zis tam sim no ntawm 13.6A (ntawm 220V tso zis voltage). Yog hais tias lub load dheev nce thiab cov zis tam sim no tshaj qhov nqi no, kev tiv thaiv overcurrent yuav txiav tawm Circuit Court hauv lub sijhawm luv luv. Thaum lub sij hawm debugging, nws yog ib qho tsim nyog yuav tsum tau teeb tsa qhov pib ntawm kev tiv thaiv overcurrent raws li lub zog ntsuas thiab qhov tseeb ntawm lub inverter. Feem ntau, qhov teeb tsa tus nqi ntawm kev tiv thaiv overcurrent yog 120% mus rau 150% ntawm qhov ntsuas tam sim no. Los ntawm kev koom tes ntawm cov sensors tam sim no thiab kev tiv thaiv circuits, lub inverter tuaj yeem teb tau sai heev thaum qhov tam sim no nce txawv txav los tiv thaiv cov cuab yeej los ntawm kev puas tsuaj. Tsis tas li ntawd, kev tiv thaiv overcurrent muaj nuj nqi yuav tsum tau sim ntau zaus kom ntseeg tau tias nws muaj kev ntseeg siab thiab cov lus teb ceev nyob rau hauv cov xwm txheej sib txawv kom ntseeg tau tias muaj kev nyab xeeb ntawm tag nrho lub hnub ci tsim hluav taws xob.

4.3 Anti-Islanding tiv thaiv
Anti-islanding tiv thaiv yog ib qho tseem ceeb muaj nuj nqi uas daim phiaj-txuas hnub ci inverters yuav tsum muaj. Thaum daim phiaj dheev poob lub zog vim muaj kev ua txhaum lossis kev saib xyuas, lub inverter yuav txuas ntxiv muab lub zog rau daim phiaj, tsim ib qho "kos". Qhov tshwm sim ntawm cov kob no tsis yog tsuas yog ua rau muaj kev phom sij rau lub phiaj xwm rov ua haujlwm, tab sis kuj tseem tuaj yeem ua rau muaj kev nyab xeeb rau cov neeg ua haujlwm tu thiab cov khoom siv. Yog li ntawd, kev tiv thaiv kev tiv thaiv kev ua haujlwm tuaj yeem tshawb xyuas lub xeev cov kob sai sai tom qab daim phiaj siv hluav taws xob thiab txiav tawm qhov kev sib txuas ntawm inverter thiab kab sib chaws hauv lub sijhawm luv luv. Raws li cov qauv thoob ntiaj teb, lub sij hawm tiv thaiv tiv thaiv teb chaws ntawm lub inverter feem ntau yuav tsum tsawg dua 2 vib nas this. Thaum lub sij hawm debugging txheej txheem, nws yog ib qhov tsim nyog los ntsuam xyuas qhov rhiab heev thiab teb ceev ntawm lub inverter lub anti-kob tiv thaiv muaj nuj nqi los ntawm simulating txhaum tej yam kev mob xws li daim phiaj fais fab tuag. Advanced inverters siv ntau txoj hauv kev nrhiav kom pom, xws li kev ntsuas hluav taws xob theem drift thiab tshawb nrhiav qhov sib txawv ntawm qhov sib txawv, kom ntseeg tau tias cov xwm txheej ntawm cov kob tuaj yeem raug raug thiab tshawb pom sai thiab kev tiv thaiv tuaj yeem ua raws li ntau yam kab sib chaws. Los ntawm kev tiv thaiv kev tiv thaiv zoo, kev nyab xeeb ntawm lub hnub ci hluav taws xob tsim hluav taws xob tuaj yeem txhim kho, kev ua haujlwm ruaj khov ntawm daim phiaj thiab kev nyab xeeb ntawm tus kheej ntawm cov neeg ua haujlwm saib xyuas tuaj yeem lav tau.

5. Kev sib txuas lus thiab kev soj ntsuam xyuas

5.1 Kev sib txuas lus raws tu qauv
Cov txheej txheem kev sib txuas lus yog lub hauv paus rau cov ntaub ntawv sib cuam tshuam ntawm lub hnub ci inverters thiab cov khoom siv sab nraud (xws li kev saib xyuas, kab sib chaws tswj hwm, thiab lwm yam). Cov txheej txheem sib txuas lus muaj xws li Modbus, RS485, CAN tsheb npav, Ethernet raws tu qauv, thiab lwm yam. Cov xwm txheej sib txawv thiab cov khoom siv yuav xav tau cov txheej txheem sib txuas lus sib txawv kom ua tiav cov ntaub ntawv xa mus tau zoo. Piv txwv li, Modbus raws tu qauv yog dav siv nyob rau hauv industrial automation thiab hnub ci zog tsim tshuab vim nws yooj yim, yooj yim ntawm kev siv thiab muaj zog compatibility. Nws txhawb ntau yam kev tshaj tawm lub cev, xws li RS232, RS485, thiab lwm yam, thiab tuaj yeem paub cov ntaub ntawv nyeem thiab tswj cov lus txib xa ntawm inverter thiab cov cuab yeej saib xyuas. Thaum lub sij hawm debugging txheej txheem, nws yog ib qho tsim nyog los xyuas kom meej tias cov kev sib txuas lus raws tu qauv tau txais los ntawm lub inverter yog sib xws nrog cov khoom siv sab nraud thiab raug teeb tsa cov txheej txheem tsis xws li baud tus nqi, cov ntaub ntawv me ntsis, nres me ntsis, thiab lwm yam. Siv RS485 kev sib txuas lus raws li piv txwv, baud tus nqi feem ntau yog teem rau 9600 bps, cov ntaub ntawv 1 ntsis nres thiab 8 ntsis yog, Yog tias cov txheej txheem kev sib txuas lus tsis raug teeb tsa kom raug, nws yuav ua rau cov ntaub ntawv tsis raug, kev sib txuas lus cuam tshuam thiab lwm yam teeb meem, cuam tshuam rau kev saib xyuas thiab tswj kev ua haujlwm ntawm lub cev.

5.2 Cov ntaub ntawv kis tus nqi
Cov ntaub ntawv kis tau tus nqi txiav txim siab ceev ntawm cov ntaub ntawv sib cuam tshuam ntawm inverter thiab cov khoom siv sab nraud, cuam tshuam rau lub sijhawm tiag tiag thiab kev ua haujlwm ntawm kev saib xyuas. Cov ntaub ntawv sib kis ntau dua tuaj yeem tau txais cov ntaub ntawv khiav haujlwm ntawm lub inverter sai dua thiab kuaj xyuas thiab daws teeb meem raws sijhawm. Piv txwv li, thaum siv Ethernet raws tu qauv rau kev sib txuas lus, cov ntaub ntawv kis tus nqi tuaj yeem ncav cuag 100 Mbps lossis siab dua, uas tuaj yeem xa cov ntaub ntawv loj, xws li lub sijhawm tiag tiag, qhov hluav taws xob, qhov hluav taws xob, tam sim no, qhov kub thiab txias thiab lwm yam tsis zoo ntawm lub inverter, nrog rau cov ntaub ntawv keeb kwm yav dhau los. Rau cov tshuab siv RS485 kev sib txuas lus, cov ntaub ntawv xa mus yog feem ntau ntawm 9600 bps thiab 115200 bps. Thaum lub sij hawm debugging, nws yog ib qho tsim nyog yuav tsum xaiv thiab teeb tsa cov ntaub ntawv xa mus raws li qhov tseeb kev sib txuas lus raws tu qauv thiab cov kev xav tau ntawm lub system. Yog tias cov ntaub ntawv kis tau tus nqi tsawg dhau, nws yuav ua rau cov ntaub ntawv qeeb tshwm sim los ntawm kev saib xyuas thiab tsis cuam tshuam qhov kev ua haujlwm tiag tiag ntawm inverter hauv lub sijhawm; thaum siab dhau ib qho kev sib kis ntawm cov ntaub ntawv tuaj yeem tso cov kev xav tau siab dua ntawm kev ua haujlwm ntawm cov kab sib txuas lus thiab cov cuab yeej siv, ua kom cov nqi thiab qhov nyuaj. Yog li ntawd, nws yog ib qho tsim nyog los xaiv tus nqi sib kis uas tsim nyog raws li qhov ua tau raws li qhov yuav tsum tau ua, thiab txheeb xyuas qhov tseeb thiab ruaj khov ntawm cov ntaub ntawv xa mus los ntawm kev sim tiag tiag.

5.3 Saib xyuas muaj nuj nqi
Kev saib xyuas muaj nuj nqi yog qhov tseem ceeb ntawm kev debugging thiab kev ua haujlwm ntawm lub hnub ci inverter. Nws tuaj yeem saib xyuas ntau yam kev ua haujlwm ntawm lub inverter hauv lub sijhawm tiag tiag, kuaj xyuas cov xwm txheej txawv txav hauv lub sijhawm, thiab lub tswb thiab tswj lawv. Kev saib xyuas kev ua haujlwm ntawm inverter feem ntau suav nrog kev saib xyuas lub sijhawm ntawm qhov tseem ceeb xws li input voltage, input tam sim no, output voltage, tso zis zaus, tso zis zog, conversion efficiency, hwj chim factor, harmonic cov ntsiab lus, thiab lwm yam. Piv txwv li, cov kev saib xyuas yuav saib tau cov zis fais fab nkhaus ntawm inverter nyob rau hauv lub sij hawm kom nkag siab txog nws lub zog tsim kev ua tau zoo nyob rau hauv txawv teeb pom kev zoo; saib xyuas cov kev hloov pauv ntawm cov tswv yim voltage thiab tam sim no los txiav txim seb qhov kev ua haujlwm ntawm lub hnub ci vaj huam sib luag yog qhov qub. Tsis tas li ntawd, lub kaw lus saib xyuas yuav tsum muaj cov ntaub ntawv kaw tseg, uas tuaj yeem khaws cov ntaub ntawv keeb kwm kev ua haujlwm ntawm lub inverter los pab txhawb kev soj ntsuam tom qab thiab kuaj xyuas qhov txhaum. Piv txwv li, sau cov ntaub ntawv tsim hluav taws xob ntawm lub inverter nyob rau lub caij nyoog sib txawv thiab lub sijhawm, thiab tshuaj xyuas qhov kev ua haujlwm ntev thiab kev ua haujlwm hloov pauv ntawm qhov system. Nyob rau tib lub sijhawm, kev saib xyuas yuav tsum muaj lub tswb ua haujlwm. Thaum qhov ntsuas tsis tau tshaj li qhov teeb tsa ib txwm muaj, nws tuaj yeem teeb tsa lub suab nrov thiab pom lub suab ceeb toom lossis ceeb toom rau cov neeg ua haujlwm saib xyuas los ntawm SMS, email, thiab lwm yam. Piv txwv li, thaum cov zis hluav taws xob ntawm lub inverter tshaj ± 10% ntawm qhov ntsuas hluav taws xob, lub ntsuas hluav taws xob yuav tsum tam sim ntawd ceeb toom rau cov neeg ua haujlwm saib xyuas cov kab hluav taws xob los yog cov khoom siv hluav taws xob hluav taws xob. Thaum lub sij hawm debugging txheej txheem, nws yog tsim nyog los ua ib tug kev ntsuam xyuas ntawm tag nrho cov kev khiav hauj lwm ntawm lub soj ntsuam system kom paub meej tias nws muaj peev xwm raug thiab ntseeg siab saib xyuas cov kev khiav hauj lwm ntawm lub inverter thiab teb rau ntau yam txawv txav nyob rau hauv lub sij hawm, thiaj li muab muaj zog guarantee rau kev ruaj ntseg thiab ruaj khov kev ua hauj lwm ntawm lub hnub ci zog tsim system.

6. Environmental adaptability parameters

6.1 Ua haujlwm kub ntau
Kev khiav hauj lwm kub ntau ntawmlub hnub ci inverteryog ib qho tseem ceeb parameter uas tsis tuaj yeem ignored thaum debugging. Thaum lub inverter ua haujlwm ntawm qhov kub sib txawv, nws qhov kev ua tau zoo thiab kev ntseeg siab yuav cuam tshuam loj heev. Feem ntau hais lus, kev ua haujlwm kub ntawm hnub ci inverters feem ntau yog nruab nrab ntawm -25 ℃ thiab + 60 ℃. Piv txwv li, ib co high-efficiency inverters tseem tuaj yeem tswj cov kev hloov pauv siab thiab kev ua haujlwm ruaj khov hauv qhov kub ntawm -20 ℃ to + 50 ℃. Thaum lub sij hawm debugging txheej txheem, nws yog ib qho tsim nyog los xyuas kom meej tias lub inverter tuaj yeem ua haujlwm ib txwm nyob rau hauv qhov kev cia siab kub ntau raws li qhov kub thiab txias ntawm qhov chaw teeb tsa tiag tiag. Yog hais tias qhov kub thiab txias tshaj qhov kev khiav hauj lwm qhov kub ntawm lub inverter, qhov kev ua tau zoo ntawm cov khoom siv hauv inverter yuav raug degraded los yog puas. Piv txwv li, nyob rau hauv ib puag ncig kub, qhov kev hloov pauv ntawm lub inverter yuav raug txo, thiab lub neej ntawm cov khoom siv hluav taws xob sab hauv yuav luv luv; nyob rau hauv ib qho chaw kub tsis tshua muaj, cov khoom xws li electrolytic capacitors yuav khov, cuam tshuam rau kev pib thiab kev ua haujlwm ntawm inverter. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua qhov ntsuas kub hloov pauv ntawm lub inverter kom ntseeg tau tias nws tuaj yeem ua haujlwm tau zoo nyob rau hauv qhov sib txawv ntawm qhov kub thiab txias, thiab siv cov cua kub kom tsim nyog los yog kev ntsuas rwb thaiv tsev raws li xav tau.

6.2 Humidity Adaptability Range
Cov av noo adaptability ntau kuj yog ib qho ntawm cov tsis tseem ceeb uas yuav tsum tau them sai sai rau thaum debugging hnub ci inverters. Cov av noo ib puag ncig tuaj yeem ua rau muaj qhov sib txawv hauv lub inverter, uas tuaj yeem ua rau hluav taws xob luv luv, kev ua haujlwm rwb thaiv tsev degradation thiab lwm yam teeb meem, cuam tshuam rau kev nyab xeeb ntawm inverter. Cov av noo adaptability ntau ntawm hnub ci inverters feem ntau yog 10% mus rau 90% RH (kwv yees av) yam tsis muaj condensation. Piv txwv li, nyob rau hauv cov chaw ntug hiav txwv dej los yog qhov chaw ntub dej, cov av noo tuaj yeem ncav cuag ntau dua 80%, uas yuav tsum muaj lub inverter kom muaj cov dej noo zoo. Thaum lub sij hawm debugging, nws yog ib qho tsim nyog yuav tsum tau xyuas seb qhov kev sib khi ua tau zoo thiab kev ntsuas dej tsis zoo ntawm lub inverter yog nyob rau hauv qhov chaw raws li cov av noo ntawm qhov tseeb qhov chaw. Qee cov inverters siv tshwj xeeb sealing designs thiab ya raws-pov thawj txheej los tiv thaiv kom tsis txhob ya raws los ntawm kev nkag mus rau sab hauv. Tsis tas li ntawd, lub inverter yuav tsum tau sim rau cov av noo adaptability kom ntseeg tau tias nws tseem tuaj yeem ua haujlwm ib txwm nyob hauv qhov chaw muaj av noo yam tsis muaj hluav taws xob tsis ua haujlwm. Piv txwv li, los ntawm simulating ib tug high humidity ib puag ncig, saib seb lub rwb thaiv tsev tsis kam ntawm lub inverter raws li qhov yuav tsum tau thiab seb ib tug luv luv Circuit Court tshwm sim.

6.3 Kev tiv thaiv qib
Kev tiv thaiv qib yog qhov qhia tau tseem ceeb los ntsuas qhov muaj peev xwm tiv thaiv lub hnub ci inverter tiv thaiv ib puag ncig ib puag ncig (xws li plua plav, dej, khoom txawv teb chaws, thiab lwm yam). Raws li cov qauv thoob ntiaj teb, qib kev tiv thaiv feem ntau yog qhia los ntawm IP codes, xws li IP65, IP67, thiab lwm yam. Piv txwv li, IP65 txhais tau hais tias lub inverter tuaj yeem tiv thaiv plua plav los ntawm kev nkag mus thiab tuaj yeem tiv taus cov dav hlau dej qis los ntawm txhua qhov kev qhia; IP67 txhais tau hais tias lub inverter tuaj yeem tiv thaiv cov plua plav nkag mus thiab tuaj yeem tso rau hauv dej rau lub sijhawm luv luv yam tsis muaj kev puas tsuaj. Thaum lub sij hawm debugging txheej txheem, nws yog ib qhov tsim nyog los xaiv qhov tsim nyog tiv thaiv theem raws li lub installation ib puag ncig thiab daim ntawv thov scenario ntawm lub inverter. Rau inverters ntsia sab nraum zoov, muaj kev tiv thaiv ntau dua, xws li IP65 lossis IP67, feem ntau yuav tsum tau tiv thaiv plua plav, nag, thiab lwm yam los ntawm kev puas tsuaj rau cov khoom siv. Rau inverters ntsia hauv tsev, qib kev tiv thaiv tuaj yeem qis, tab sis nws tseem yuav tsum tau ua kom tau raws li cov plua plav thiab dej hauv paus. Tsis tas li ntawd, qhov kev tiv thaiv qib ntawm inverter yuav tsum tau kuaj xyuas kom ntseeg tau tias nws ua tau raws li cov qauv tsim. Piv txwv li, los ntawm kev simulating ib puag ncig plua plav thiab kev sim dej dav hlau, nws raug kuaj xyuas seb lub inverter kev tiv thaiv kev ua tau zoo raws li cov qauv teev tseg hauv IP code.

7. Kev nyab xeeb thiab ceeb toom tsis

7.1 Rwb thaiv tsev tsis kam
Rwb thaiv tsev kuj yog ib qho tseem ceeb parameter rau kev ntsuas hluav taws xob kev nyab xeeb kev ua tau zoo ntawm hnub ci inverters. Nws qhia txog qib ntawm kev rwb thaiv tsev ntawm cov hluav taws xob sab hauv ntawm lub inverter thiab cov khoom siv hluav taws xob sab nraud, thiab tuaj yeem tiv thaiv kom tsis txhob tawg thiab hluav taws xob poob. Feem ntau hais lus, lub rwb thaiv tsev tiv thaiv ntawm hnub ci inverters yuav tsum ncav cuag qib siab. Piv txwv li, raws li cov qauv ntawm International Electrotechnical Commission (IEC), lub rwb thaiv tsev ntawm lub inverter yuav tsum tsis txhob tsawg tshaj li 1MΩ. Nyob rau hauv qhov tseeb commissioning txheej txheem, nws yog ib qhov tsim nyog yuav tau siv ib tug kws rwb thaiv tsev tiv thaiv tester los ntsuam xyuas lub inverter kom paub meej tias nws cov rwb thaiv tsev tiv thaiv raws li kev ruaj ntseg. Yog tias cov rwb thaiv tsev tsis zoo dhau lawm, nws tuaj yeem ua rau tam sim no to, uas yuav tsis tsuas yog txo cov kev ua haujlwm ntawm lub inverter, tab sis kuj yuav ua rau muaj kev nyab xeeb rau cov neeg siv khoom thiab cov khoom siv. Piv txwv li, nyob rau hauv ib qho chaw ntub dej, qhov kev ua tau zoo ntawm cov khoom siv rwb thaiv tsev yuav deteriorate, uas ua rau txo qis hauv rwb thaiv tsev. Yog li ntawd, thaum lub sij hawm commissioning, yuav tsum tau them tshwj xeeb mloog mus rau cov kev hloov nyob rau hauv rwb thaiv tsev tsis kam, thiab cov kev ntsuas yuav tsum tau coj, xws li ntxiv dag zog rau rwb thaiv tsev kho mob los yog txhim kho lub installation ib puag ncig, los xyuas kom meej kev ruaj ntseg ntawm lub inverter.

7.2 Cov dej ntws tam sim no
Cov dej xau tam sim no yog hais txog qhov tam sim no tsim los ntawm cov khoom siv hluav taws xob sab hauv ntawm lub inverter thiab cov khoom siv hluav taws xob sab nraud vim qhov kev puas tsuaj ntawm rwb thaiv tsev kev ua haujlwm raws li kev ua haujlwm ib txwm muaj. Lub xub ntiag ntawm cov xau tam sim no tuaj yeem ua rau muaj xwm txheej loj xws li khoom siv puas tsuaj, hluav taws kub, thiab hluav taws xob poob. Thaum debugging lub hnub ci inverter, qhov loj ntawm cov xau tam sim no yuav tsum tau tswj nruj me ntsis. Raws li cov qauv tsim nyog, cov dej xau tam sim no yuav tsum tau tswj nyob rau hauv qhov chaw nyab xeeb. Piv txwv li, rau lub hnub ci hluav taws xob hauv tsev dav dav, qhov xau tam sim no yuav tsum tsis pub tshaj 3.5mA. Thaum lub sij hawm debugging txheej txheem, lub inverter yuav tsum tau saib xyuas nyob rau hauv lub sij hawm ntawm lub sij hawm los ntawm ib tug to taub tam sim no cov cuab yeej los xyuas kom meej tias nws leakage tam sim no raws li cov qauv kev ruaj ntseg. Yog tias nws pom tias cov dej ntws tawm tam sim no tshaj li tus nqi teev tseg, qhov kev debugging yuav tsum tau nres tam sim ntawd, cov txheej txheem rwb thaiv tsev ntawm lub inverter yuav tsum tau kuaj xyuas, qhov ua rau ntawm qhov to yuav tsum tau pom thiab kho. Tsis tas li ntawd, kev tshuaj xyuas tsis tu ncua ntawm cov dej xau tam sim no kuj yog ib qho kev ntsuas tseem ceeb los xyuas kom meej lub sijhawm ntev ntawm kev nyab xeeb ntawm lub hnub ci hluav taws xob tsim hluav taws xob, uas tuaj yeem txheeb xyuas qhov teeb meem hluav taws xob hauv lub sijhawm thiab tsis txhob muaj xwm txheej.

7.3 Daim Ntawv Ceeb Toom Kev Ncaj Ncees
Cov cim ceeb toom ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm nyab xeeb ntawm hnub ci inverters. Ua tiav cov cim ceeb toom tuaj yeem ceeb toom cov neeg ua haujlwm thiab cov neeg ua haujlwm saib xyuas kom xyuam xim rau qhov txaus ntshai ntawm cov khoom siv, kev ua haujlwm ceev faj thiab muaj peev xwm ua rau muaj kev phom sij, yog li tiv thaiv kev sib tsoo zoo. Thaum debugging lub hnub ci inverter, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xyuas seb cov cim ceeb toom ntawm cov cuab yeej ua tiav, meej thiab yooj yim los txheeb xyuas. Piv txwv li, qhov siab-voltage ib feem ntawm lub inverter yuav tsum muaj qhov pom tseeb "high voltage txaus ntshai" kos npe rau ceeb toom rau tib neeg kom muaj kev nyab xeeb nyob deb thaum ua haujlwm; yuav tsum muaj "ceev faj rau qhov kub siab" kos npe nyob ze ntawm qhov chaw nres nkoj cua sov ntawm cov khoom siv los tiv thaiv tib neeg los ntawm kev sib cuag thiab ua rau kub hnyiab. Tsis tas li ntawd, rau qee qhov kev ua haujlwm tshwj xeeb, xws li cov lus qhia rau kev tiv thaiv kev tiv thaiv kev ua haujlwm thiab kev ua haujlwm hauv av, kuj yuav tsum muaj cov cim ceeb toom sib xws. Yog tias pom tias daim ntawv ceeb toom tau ploj lawm lossis puas lawm, nws yuav tsum tau muab ntxiv lossis hloov lub sijhawm kom ntseeg tau tias txhua daim paib ua raws li cov cai tswj kev nyab xeeb thiab muab cov lus ceeb toom tsim nyog thiab kev taw qhia rau kev ua haujlwm ruaj ntseg ntawm cov khoom siv.