摘要
随着新能源的兴起,特别是在风力发电领域,无刷双馈电机(BDFM)因其具有功率因数可调,降低变频器的容量等优点,受到大量的关注。在BDFM驱动系统中,应用最广泛的是矢量控制(磁场定向)。但是传统的矢量控制系统,由于电流的响应速度较慢,转速达不到理想的跟踪。为了对这一情况进行改善,采用直接电流控制与矢量控制同时运用于双馈电机的方法,网侧采用直接电流控制,转子侧采用矢量控制,中间通过直流母线连接。最后通过MATLAB/Simulink对控制方案进行仿真,所提出优化控制的可行性通过仿真实验得到充分验证。
With the rise of new energy sources, especially in the field of wind power generation, brushless doubly-fed electric machines ( BDFM) have received a lot of attention due to their advantages of adjustable power factor and reduced inverter capacity.In the drive system of BDFM, the most widely used is vector control (field orientation). But the traditional vector control system, because the current response speed is slow, the speed does not reach the ideal tracking. For improvement, direct current control and vector control are applied to the method of double-fed motor at the same time. The grid-sid adopts direct current control, the rotor-side adopts vector control, and the middle is connected by DC bus. Finally, the optimization control scheme is simulated by MATLAB/Simulink, and the feasibility of the optimization control is fully verified.
作者
徐翊翔
吴雷
Xu Yixiang;Wu Lei(School of Internet of Things, Jiangnan University, Wuxi 214122, China)
出处
《电子测量技术》
2019年第11期39-42,共4页
Electronic Measurement Technology
关键词
双馈电机
直接电流控制
解耦控制
变速恒频
doubly-fed motor
direct current control
decoupling control
variable speed constant frequency
