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无刷双馈电机电流综合矢量控制策略研究 被引量:1

Study of Integrated Vector Control for Brushless Doubly-Fed Machine
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摘要 通过对BDFM动态数学模型和同步速旋转dq轴坐标变换的研究,研究使用电流综合矢量对矢量控制策略进行优化。该控制策略无需计算转子磁链,减少了对转子参数的依赖,通过给定转速和矢量角可实现精准的转速控制。分别采用输出限幅PI控制和变参数PI控制,并与传统的PI控制进行对比,结果表明前两者可有效改善BDFM的动态响应。通过梯度下降法对矢量角优化,可有效调节BDFM的无功功率,从而改善调速系统的功率因数。仿真结果验证了该理论分析的正确性。 BDFM dynamic mathematical model and synchronous speed rotation dq axis coordinate transformation were studied,and the vector control strategy was optimized by using current integrated vector.This control strategy does not need to calculate the rotor flux,it reduces the dependence on the rotor parameters and can achieve accurate speed control by given speed and vector angle.The PI controller with saturation and the PI controller with variable parameters were adopted respectively,and compared with the traditional PI controller.The results show that the former two controllers can effectively improve the dynamic response of BDFM.The vector angle optimization by gradient descent method can effectively adjust the reactive power of BDFM and improve the power factor of the speed regulation system.The correctness of the theoretical analysis is verified by simulation.
作者 汪任潇 韩力 王斌 杨柠宁 赵普 燕罗成 WANG Ren-xiao;HAN Li;WANG Bin;YANG Ning-ning;ZHAO Pu;YAN Luo-cheng(State Key Laboratory of Transmission&Distribution Equipement and Power System Safety and New Technology,Chongqing University,Chongqing 400044,China)
出处 《微特电机》 2019年第7期51-55,64,共6页 Small & Special Electrical Machines
基金 输配电装备及系统安全与新技术国家重点实验室(重庆大学)访问学者项目(2007DA10512716403)
关键词 无刷双馈电机 电流综合矢量 矢量控制 梯度下降法 brushless doubly-fed machine (BDFM) current integrated vector vector control gradient descent method
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