摘要
双绕组感应发电机系统采用磁链定向控制策略可以分别对控制绕组有功电流与无功电流进行调节,从而获得控制绕组与功率绕组两端直流电压的稳定控制。然而,该控制策略需采用多个调节器,使得控制器设计困难,也制约了双绕组感应发电机系统的进一步发展与应用。针对该问题,提出双绕组感应发电机系统的无差拍电流预测控制策略,建立发电机系统的预测模型,在一个控制周期内以消除被控量的误差为目标,直接计算得到所需的控制量,又分析模型参数失配带来的电流误差问题,对该控制策略做了误差补偿。该文所提出的电流预测控制策略避免了繁琐的调节器参数整定过程,同时具有优秀的控制性能,实现了电流的无误差跟踪。样机仿真与实验结果验证了双绕组感应发电机系统无差拍电流预测控制的正确性与可行性。
The dual winding induction generator system adopts the flux-oriented control strategy to adjust the active current and the reactive current separately,so as to obtain stable control of the DC voltage at both ends of the control winding and the power winding.However,the control strategy is relatively complicated,and multiple regulators bring difficulties in the design of the controller,which restricts the further development and application of the dual winding induction generator system.Therefore,a deadbeat predictive current control strategy for the dual-winding induction generator system is proposed,and a predictive model of the generator system is established.In a control cycle,with the goal of eliminating the error of the controlled quantity,the required control quantity is directly calculated.The current error caused by the model parameter mismatch is analyzed,and error compensation is made for the control strategy.The proposed deadbeat predictive current control strategy avoids the cumbersome adjustment process of regulator parameters,has excellent control performance,and achieves error-free current tracking.The prototype simulation and experimental results verify the correctness and feasibility of the predictive current control of the dual winding induction generator system.
作者
卜飞飞
罗捷
刘皓喆
黄文新
秦海鸿
Bu Feifei;Luo Jie;Liu Haozhe;Huang Wenxin;Qin Haihong(College of Automation Engineering Nanjing University of Aeronautics and Astronautics,Nanjing 211106 China;Shanghai Aerospace Electronic Technology Institute,Shanghai 201109 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2021年第24期5213-5224,共12页
Transactions of China Electrotechnical Society
基金
国家自然科学基金资助项目(52177050)。
关键词
双绕组感应发电机
电流预测控制
磁链定向控制
误差补偿
Dual winding induction generator
predictive current control
flux-oriented control
error compensation
