中国电机工程学报
中國電機工程學報
중국전궤공정학보
ZHONGGUO DIANJI GONGCHENG XUEBAO
2011年
33期
159-168
,共10页
双馈风力发电%非线性控制%无源性控制%自适应降阶观测器%鲁棒性
雙饋風力髮電%非線性控製%無源性控製%自適應降階觀測器%魯棒性
쌍궤풍력발전%비선성공제%무원성공제%자괄응강계관측기%로봉성
doubly-fed wind power generation%nonlinearcontrol%passivity-based control%adaptive reduced orderobserver%robustness
提出一种基于无源性与自适应降阶观测器的双馈风力发电机非线性控制方法。建立了双馈感应电机（doubly-fed induction generator，DFIG）的欧拉方程，将其分解为电气和机械2个无源子系统的反馈并联，在设计控制器时只需考虑电气子系统，简化了控制算法。采用非线性分析方法建立电流误差方程，设计了DFIG的转矩与转速控制器，推导出转子电压控制量。基于模型参考技术设计自适应降阶观测器辨识电机转速，并给出了速度辨识律，观测器的增益通过极点配置得到。仿真结果表明，所提出的无源性控制和自适应降阶观测器具有良好的动、静态性能；无源性控制能够实现定子侧有功、无功功率的独立调节；与传统矢量控制相比，无源性控制简化了控制算法，对电机参数及负载扰动具有很好的鲁棒性。
提齣一種基于無源性與自適應降階觀測器的雙饋風力髮電機非線性控製方法。建立瞭雙饋感應電機（doubly-fed induction generator，DFIG）的歐拉方程，將其分解為電氣和機械2箇無源子繫統的反饋併聯，在設計控製器時隻需攷慮電氣子繫統，簡化瞭控製算法。採用非線性分析方法建立電流誤差方程，設計瞭DFIG的轉矩與轉速控製器，推導齣轉子電壓控製量。基于模型參攷技術設計自適應降階觀測器辨識電機轉速，併給齣瞭速度辨識律，觀測器的增益通過極點配置得到。倣真結果錶明，所提齣的無源性控製和自適應降階觀測器具有良好的動、靜態性能；無源性控製能夠實現定子側有功、無功功率的獨立調節；與傳統矢量控製相比，無源性控製簡化瞭控製算法，對電機參數及負載擾動具有很好的魯棒性。
제출일충기우무원성여자괄응강계관측기적쌍궤풍력발전궤비선성공제방법。건립료쌍궤감응전궤（doubly-fed induction generator，DFIG）적구랍방정，장기분해위전기화궤계2개무원자계통적반궤병련，재설계공제기시지수고필전기자계통，간화료공제산법。채용비선성분석방법건립전류오차방정，설계료DFIG적전구여전속공제기，추도출전자전압공제량。기우모형삼고기술설계자괄응강계관측기변식전궤전속，병급출료속도변식률，관측기적증익통과겁점배치득도。방진결과표명，소제출적무원성공제화자괄응강계관측기구유량호적동、정태성능；무원성공제능구실현정자측유공、무공공솔적독립조절；여전통시량공제상비，무원성공제간화료공제산법，대전궤삼수급부재우동구유흔호적로봉성。
A nonlinear control scheme was proposed for doubly-fed wind power generation based on passivity and adaptively reduced order observer. The model of doubly-fed induction generator （DFIG） by Euler equation was established, and the system was decomposed into two feedback interconnected passive subsystems, an electrical subsystem and a mechanical subsystem. The electrical subsystem was the unique one to be considered in design process of the controller, thus, simplifying the control algorithm. The error equation of current was obtained through the nonlinear analysis. The torque and speed controller of DFIG was then designed, and the required reference rotor voltages were deduced. Based on the model reference adaptive approach, an adaptively reduced order observer was designed for the estimation of the motor speed, and speed identification law was proposed, the gain matrix of the observer was obtained by pole-placement technique. Simulation results show that the proposed passivity-based control and adaptively reduced order observer has a good dynamic and static performance; Passivity-based control can realize independent modulation of the stator active and reactive power; Meanwhile, passivity-based control simplifies control algorithm and has good robustness for the motor parameters and load disturbances compared with the traditional vector contrnl
