现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
10期
148-150,155
,共4页
电机试验%变频电源%无功补偿%能量回馈
電機試驗%變頻電源%無功補償%能量迴饋
전궤시험%변빈전원%무공보상%능량회궤
motor test%variable-frequency power supply%reactive power compensation%energy feedback
针对电机出厂试验和型式试验,提出一种双逆变器共直流母线的能量回馈型变频电源试验系统。该系统经过对电网电压整流和逆变之后,实现电压可调和频率可调的电机试验电源,取代传统的电动机?发电机组试验设备。设计中被试电机和陪试电机分别由两组不同的逆变器驱动,两组逆变器共直流母线连接,在电机试验时实现无功补偿和对拖试验时实现能量的回馈,具有精度高,节约能源,操作方便等优点。
針對電機齣廠試驗和型式試驗,提齣一種雙逆變器共直流母線的能量迴饋型變頻電源試驗繫統。該繫統經過對電網電壓整流和逆變之後,實現電壓可調和頻率可調的電機試驗電源,取代傳統的電動機?髮電機組試驗設備。設計中被試電機和陪試電機分彆由兩組不同的逆變器驅動,兩組逆變器共直流母線連接,在電機試驗時實現無功補償和對拖試驗時實現能量的迴饋,具有精度高,節約能源,操作方便等優點。
침대전궤출엄시험화형식시험,제출일충쌍역변기공직류모선적능량회궤형변빈전원시험계통。해계통경과대전망전압정류화역변지후,실현전압가조화빈솔가조적전궤시험전원,취대전통적전동궤?발전궤조시험설비。설계중피시전궤화배시전궤분별유량조불동적역변기구동,량조역변기공직류모선련접,재전궤시험시실현무공보상화대타시험시실현능량적회궤,구유정도고,절약능원,조작방편등우점。
For the pre?delivery test and type test of motors,an energy feedback type variable?frequency power supply test system with two inverters connecting to a common DC bus is proposed in this paper. The system can realize motor test with voltage and frequency adjustability after rectifying and inverting the grid voltage,which can replace the traditional motor and generator set test equipments. The tested motor and accompany test motor are driven by different inverters,which connect to a common DC bus to achieve reactive power compensation in the motor test and achieve energy feedback in twin trawling test. The system has the characteristics of high precision,energy saving and easy operation.