Izinto odinga ukuzazi mayelana nama-braking resistors

Izinto odinga ukuzazi mayelana nama-braking resistors

Buka: 37 ukubukwa


I-Braking resistorukuklama, okuyinhloko ukucabangela izinkinga ze-capacitor kanye ne-IGBT module voltage, ukugwema lawa madivaysi amabili abalulekile yi-voltage ephezulu yebhasi ehlanziwe, lezi zinhlobo ezimbili zezingxenye uma zimbi, i-inverter ayikwazi ukusebenza kahle.

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Ngaphezu komthwalo omkhulu izikhathi zokwehla kwejubane zidinga ukwandisai-braking resistorfuthi iyunithi braking ukuze amabhuleki fast, eqinisweni, uma kuhambisana esindayo, isikhathi sokuqalisa-up isikhathi esidingekayo uhlobo esheshayo, futhi kudingeka ibhuleki iyunithi kanye ukubopha resistor ukuqala, esikhathini esidlule, ngazama ukusebenzisa inverter ukuze ukushayela umshini wokubhoboza okhethekile, izidingo zesikhathi sokusheshisa se-inverter yakhelwe njengemizuzwana engu-0.1, lapho umthwalo ogcwele uqala, nakuba umthwalo ungenzima kakhulu, kodwa ngenxa yokuthi isikhathi sokusheshisa sifushane kakhulu, ukushintshashintsha kwamandla ebhasi. izophinde ibe overvoltage noma overcurrent isimo. Kodwa ngenxa yokuthi isikhathi sokusheshisa sifushane kakhulu, ukuguquguquka kwe-voltage yebhasi kunamandla kakhulu, kuzoba ne-over-voltage noma i-over-current, bese ukwandisa i-unit braking yangaphandle kanye ne-braking resistor, i-inverter ingasebenza ngokujwayelekile.

2024.1.02(1)

Hlaziya, ngoba isikhathi sokuqala sifushane kakhulu, i-voltage ye-capacitor yebhasi ithululwa ngaso leso sikhathi, futhi isilungisisi masishane sibe nokushaja okukhulu kwamanje, okubangela ugesi webhasi uphakame ngokuzumayo, ngakho-ke ukushintshashintsha kwamandla kagesi webhasi kunamandla kakhulu, khona manjalo kungase kube ngaphezu kuka-700. ama-volts, ahlanganiswe ne-i-braking resistor, ungakwazi ukuqeda lokhu kuguquguquka kokucindezela okuphezulu ngesikhathi esifanele, ukuze isiguquli semvamisa sisebenze esimweni esivamile.