独立无刷双馈发电机无速度传感器直接电压控制  

Sensorless Direct Voltage Control of the Stand-Alone Brushless Doubly-Fed Generator

作　　者：张鸣[1] 刘毅[1] ZHANG Ming LIU Yi(College of Mechanical and Electrical Engineering, Huanggang Normal University, Huanggang, 438000, Chin)

机构地区：[1]黄冈师范学院机电工程学院,湖北黄冈438000

出　　处：《微电机》2017年第6期78-83,共6页Micromotors

摘　　要：无刷双馈发电机是一种新型的交流感应发电机,它的定子中包含两套极对数不同的绕组(功率绕组和控制绕组)。针对BDFG独立发电系统,提出了一种无速度传感器直接电压控制策略,通过调节控制绕组电流使功率绕组电压跟踪其参考幅值和相位,并在一台额定功率为30kW原型BDFG上进行了实验验证。实验结果表明,当BDFG的转速和负载变化时,该控制策略具有良好的动态和稳态性能。该控制策略除省去了速度传感器外,还实现了输出电压幅值和频率的独立控制,因此它也具有很强的鲁棒性。The brushless doubly-fed generator （BDFG） is a new type of AC induction generator, with two windings （power winding, PW, and control winding, CW） housed in the stator. A sensorless direct voltage control strategy was proposed for the BDFG stand-alone power generation system, which made the amplitude and phase of the PW voltage track their reference values by regulating the CW current. The proposed control strategy was implemented on a prototype BDFG with a rated power of 30kW. The satisfactory dynamic and steady-state performance was verified by experimerttal results uader variable rotor speed and load. The pro= posed control strategy is robust due to the absence of speed sensors and the independent control of the PW voltage amplitude and phase.

关 键 词：无刷双馈发电机 独立发电系统 无速度传感器控制 直接电压控制 

分 类 号：TM343[电气工程—电机]