工业仪表与自动化装置
工業儀錶與自動化裝置
공업의표여자동화장치
INDUSTRIAL INSTRUMENTATION & AUTOMATION
2014年
3期
7-10,32
,共5页
电网对称故障%DFIG%矢量控制
電網對稱故障%DFIG%矢量控製
전망대칭고장%DFIG%시량공제
symmetrical grid fault%DFIG%vector control
提出了一种电网对称故障下DFIG的改进矢量控制策略。给出了同步速ω1旋转坐标系中DFIG风电机组的等效模型,据此设计出以d轴磁链定向的网侧、转子侧PWM变换器矢量控制方案,并对其进行改进,然后对改进后的策略进行仿真。仿真结果表明,改进后的控制策略,使系统具有更好的不间断运行能力。
提齣瞭一種電網對稱故障下DFIG的改進矢量控製策略。給齣瞭同步速ω1鏇轉坐標繫中DFIG風電機組的等效模型,據此設計齣以d軸磁鏈定嚮的網側、轉子側PWM變換器矢量控製方案,併對其進行改進,然後對改進後的策略進行倣真。倣真結果錶明,改進後的控製策略,使繫統具有更好的不間斷運行能力。
제출료일충전망대칭고장하DFIG적개진시량공제책략。급출료동보속ω1선전좌표계중DFIG풍전궤조적등효모형,거차설계출이d축자련정향적망측、전자측PWM변환기시량공제방안,병대기진행개진,연후대개진후적책략진행방진。방진결과표명,개진후적공제책략,사계통구유경호적불간단운행능력。
An improved vector control strategies of DFIG under symmetrical grid fault is proposed in this paper .The equivalent model of DFIG wind turbines in synchronous speed ω1 coordinate system is given, thus design the network side , the rotor side PWM converter of directed d-axis flux with vector control program , and to improve it , then simulate the improved strategy .And its simulation results show that the improved control scheme makes the system better ability to run uninterrupted .