Umhlinzeki weyunithi ye-frequency converter braking ukukhumbuza ukuthi ukulawulwa kwesivinini sokuguqula imvamisa yamamotho kagesi kancane kancane kube uphawu lwezikhathi. Ukulawulwa kwesivinini sokusebenza kwe-synchronous motor ukulawulwa kwesivinini sokuguqulwa kwemvamisa yama-motor kagesi e-AC ashayela imishini yokulayisha i-torque yesikwele efana nabalandeli namaphampu enqubweni yokukhiqiza. Ukulawulwa kwesivinini esishintshashintshayo kungafinyelela umphumela wenqubo ongcono kakhulu kanye nemithelela ebalulekile yokonga nokunciphisa ukusetshenziswa.
1. Umphumela wokonga amandla
Imishini engumshini eshayelwa amamotho endabuko e-brushless excitation synchronous, njengamafeni, amaphampu, nama-compressor, isebenza ngokuphuma kwamandla okungaguquki kumaza wamandla. Lapho inqubo ilungisa izinga lokugeleza kwayo kanye nokucindezela, ukuchithwa kwamandla okungathí sina kuzokwenzeka ngoba izinga lokugeleza lilingana nesivinini somthwalo, futhi amandla adingekayo alingana namandla esithathu ejubane. Ngakho-ke, uma izinga lokugeleza elidingekayo lingu-80% wezinga lokugeleza elilinganiselwe, kulesi simo esisebenzayo, ukusebenzisa ukulawulwa okuzenzakalelayo kwe-variable frequency regulation kungasindisa ngaphezu kuka-45% kagesi uma kuqhathaniswa nezindlela zokulawula zendabuko.
2. Ukulawulwa kwenqubo yokusebenza kwamafrikhwensi okuguquguqukayo
Ukusebenza kokulawula isivinini esishintshashintshayo kuwuhlelo olulodwa lokulawula umshini. Inqubo yokusebenza kokulawula isivinini esishintshashintshayo ngokuyisisekelo iyafana naleyo yokulawula isivinini esishintshashintshayo isiqalo esithambile, kodwa kunomehluko. Umehluko wukuthi ngemuva kokuthi igumbi lokulawula eliyinhloko likhiphe umyalo wokulungiselela wokulawulwa kokusebenza kokulawula isivinini esishintshashintshayo se-synchronous motor, i-turning drive motor ye-synchronous motor iyishayela ukuthi ijikeleze. Uma isivinini sokujikeleza semoto evumelanisiwe sifinyelela ku-1% wesivinini esilinganiselwe, injini evumelanisiwe ilandela uhlelo oluklanyelwe ukuyala isistimu yokulawula ukuthi ivule isilawuli sokuvusa. Ngemva kokuthi isilawuli sokuvusa senziwe sisebenze, igumbi lokulawula eliyinhloko likhipha isignali "yemvume yokwenza kusebenze", ebonisa ukuvala isignali yokushintsha isiqalo esithambile esinamandla kagesi aphezulu ekusebenzeni kokulawula isivinini esishintshashintshayo. Ngaso leso sikhathi, igumbi lokulawula eliyinhloko livala ngokushesha ukushintshwa kwe-high-voltage yesekethe yokulawula eyinhloko yesistimu yokulawula isiqalo esithambile sokusebenza kokulawula isivinini esishintshashintshayo se-synchronous motor esekelwe emiyalweni yesignali, ukuze i-synchronous motor ibe esimweni sokusebenza sokuqala esithambile sokulawula ukulawula isivinini esishintshashintshayo.
Enqubweni yokuguqulwa kwemvamisa kanye nokulawula imvamisa yokulawula isiqalo esithambile samamotho angama-synchronous, i-polarity yezigxobo kazibuthe ze-rotor ye-synchronous motor ihlala ingashintshiwe, futhi iyasheshisa futhi ijikeleze nemvamisa yokulawulwa kwesivinini sokuguqulwa kwemvamisa, ikhulisa kancane kancane isivinini sokuguqula i-voltage ne-frequency, ukuze i-synchronous motor igijime ngesivinini esilinganiselwe sokuguqula, iqale ukulawula isivinini esilinganiselwe.
Ngesikhathi sokusebenza kwamamotho ama-synchronous anokulawulwa kwesivinini esiguquguqukayo, isistimu yokulawula isivinini esishintshashintshayo, isistimu yokulawula ikhompyutha yemboni encane, kanye nokulawulwa kokusebenza kwe-vector kufinyelela ukulawulwa kwesivinini okuzinzile nokunembe ngokuya ngezinguquko zangempela zomthwalo.
Ngaphambi kokumisa i-synchronous motor ngesikhathi sokusebenza kokulawula isivinini esishintshashintshayo, idivayisi esebenzayo yokulawula isivinini esishintshashintshayo kufanele inciphise ngokuzenzakalelayo ukuphuma kwamanje iye kuziro futhi ivimbe wonke ama-pulses ashukumisayo wedivayisi yokusebenza yokulawula isivinini esishintshashintshayo ngaphambi kokunikeza isibonisi sesignali "sokuvumela ukumisa". Ukulawula konke kuzonqamula ngokushesha isekethe yokulawula eyinhloko yeswishi ye-voltage ephezulu yedivayisi yokulawula isivinini esishintshashintshayo esisekelwe emiyalweni yesignali yesibonisi, futhi iqede inqubo yokulawula isivinini esishintshashintshayo sokulawula isivinini.