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标题：独立无刷双馈发电机无速度传感器直接电压控制 |
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作者：张鸣，刘毅 |
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| 2017年第6期 访问次数：334次 |
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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。
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
Abstract: The brushless doublyfed 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 standalone 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 steadystate performance was verified by experimental results under variable rotor speed and load. The proposed control strategy is robust due to the absence of speed sensors and the independent control of the PW voltage amplitude and phase.
Key words: brushless doublyfed generator; standalone power generation system; sensorless control; direct voltage control |
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