无刷级联双馈感应发电机稳压控制策略  

Voltage Stabilization Control Strategy for Brushless Cascaded Doubly-fed Induction Generator

作　　者：陈杰[1] 陈昊 贲能军[1] CHEN Jie;CHEN Hao;BEN Nengjun(School of Mechanical and Electrical Engineering,Yancheng Polytechnic College,Yancheng 224005,China;State Grid Yancheng Power Supply Company,Yancheng 224000,China)

机构地区：[1]盐城工业职业技术学院机电工程学院,盐城224005 [2]国家电网盐城供电公司,盐城224000

出　　处：《电源学报》2022年第5期196-204,共9页Journal of Power Supply

基　　金：江苏省科技厅资助项目(BX2019060)。

摘　　要：级联双馈感应电机作为无刷变速恒频发电机带负载独立运行时,由于负载和转速变化,存在脱网下维持恒频恒压输出的控制问题,故设计了一种新型稳压控制策略。基于级联双馈感应电机作为无刷变速恒频发电机运行的数学模型,设计了一种易于实施的间接磁场定向矢量控制,可在转速和负载单独变化或一起变化时,稳定发电机的输出电压幅值和频率。同时,电压控制器的设计避免了前馈补偿及其所需额外电流传感器的应用,即通过合理设计抑制了耦合效应带来的扰动。利用所搭建的级联双馈感应电机测试平台开展了实验研究,测试结果验证了电压控制器的稳压性能。When a cascaded doubly-fed induction machine(DFIM) is used as a brushless variable-speed constant-frequency generator operating independently with load, due to the changes in load and speed, a control problem of maintaining the constant-frequency constant-voltage output will occur in the case of off-grid. To solve this problem, a novel voltage stabilization control strategy is designed. Based on the mathematical model of the cascaded DFIM which serves as a brushless variable-speed constant-frequency generator, an indirect field-oriented vector control which is easy to implement is designed, which can stabilize the amplitude and frequency of the output voltage from the generator when the speed and load change individually or together. At the same time, the design of the voltage controller avoids the application of feedforward compensation and the additional current sensor requirement, i.e., the disturbance caused by the coupling effect is suppressed by a reasonable design. Experimental studies were carried out using the cascaded DFIM test platform, and test results verified the controller’s voltage stabilization performance.

关 键 词：级联双馈感应电机 无刷 变速恒频 矢量控制 

分 类 号：TM346[电气工程—电机]