电机与控制应用
電機與控製應用
전궤여공제응용
ELECTRIC MACHINES & CONTROL APPLICATION
2015年
7期
62-66,74
,共6页
风力发电%永磁直驱发电%定子OW%不连续PWM
風力髮電%永磁直驅髮電%定子OW%不連續PWM
풍력발전%영자직구발전%정자OW%불련속PWM
wind energy generation%permanent magnet synchronous generator(PMSG)%open stator winding%discontinuous PWM
针对中压永磁直驱风电系统( PMSG)运行中存在的电流脉动问题，提出一种OW式永磁直驱风电系统不连续PWM调制方法。建立了OW双逆变器PMSG驱动系统等效开关模型，阐明了解耦PWM调制电流脉动问题的本质原因，引入“有效时间”概念，通过合理地偏移有效电压矢量作用时间，解决了PMSG机侧定子电流脉动问题，实现了PMSG变流器发电品质的优化提高。最后，基于110 kW风力发电对拖试验平台对所提OW PMSG不连续PWM调制方法进行性能验证，验证了该方法对优化PMSG并网电能品质的有效性。
針對中壓永磁直驅風電繫統( PMSG)運行中存在的電流脈動問題，提齣一種OW式永磁直驅風電繫統不連續PWM調製方法。建立瞭OW雙逆變器PMSG驅動繫統等效開關模型，闡明瞭解耦PWM調製電流脈動問題的本質原因，引入“有效時間”概唸，通過閤理地偏移有效電壓矢量作用時間，解決瞭PMSG機側定子電流脈動問題，實現瞭PMSG變流器髮電品質的優化提高。最後，基于110 kW風力髮電對拖試驗平檯對所提OW PMSG不連續PWM調製方法進行性能驗證，驗證瞭該方法對優化PMSG併網電能品質的有效性。
침대중압영자직구풍전계통( PMSG)운행중존재적전류맥동문제，제출일충OW식영자직구풍전계통불련속PWM조제방법。건립료OW쌍역변기PMSG구동계통등효개관모형，천명료해우PWM조제전류맥동문제적본질원인，인입“유효시간”개념，통과합리지편이유효전압시량작용시간，해결료PMSG궤측정자전류맥동문제，실현료PMSG변류기발전품질적우화제고。최후，기우110 kW풍력발전대타시험평태대소제OW PMSG불련속PWM조제방법진행성능험증，험증료해방법대우화PMSG병망전능품질적유효성。
Permanent Magnet Synchronous Generator current ripple in the operation proposed an open winding type permanent magnet direct drive wind power system for discontinuous PWM modulation. Open winding pair was established equivalent switch model PMSG inverter drive system, clarify the decoupled nature of PWM modulation current ripple causes by introducing a“valid” by properly offset voltage vector time effectively solved PMSG machine side of the stator current ripple, realized the optimization of PMSG were converters power quality improvement. Finally, 110kW wind drag and experimental platform for the open winding PMSG continuous PWM modulation method for performance verification, verified the validity of the method in the optimization of PMSG on-grid power quality.
