开关磁阻风力发电系统输出电压优化控制

Output Voltage Optimal Control of Switched Reluctance Wind Power Generator System

针对因风速突变开关磁阻发电系统对输出电压难以快速动态稳定控制的问题,提出一种PWM斩波控制与角度位置控制相结合的复合控制方法,在中低风速时采用PWM斩波模式控制,当风速突变时,切换至角度位置模式控制,通过控制策略实现这两种模式运行的平滑切换,优化了对输出电压的控制,有效抑制了因风速突变对输出电压的影响,该方法动态响应快,控制精度高,鲁棒性强。仿真实验和研制的模拟装置实验验证了复合控制方法的可行性和有效性。

Aiming at solving the problem that the switched reluctance wind power generator system can hardly control the output voltage fast, dynamically and stably when the wind speed changes abruptly, this paper proposes a new compound control method which combines the pulse width modulation （PWM） chopping control and angle position control together. Under middle and low wind speed, PWM chopping control is used. When the wind changes abruptly, the an- gle position control starts to work. By using these control strategies, the smooth transition of these two control modes can be achieved and the output voltage control is optimized which can effectively inhibit the influence to output voltage when the wind changes abruptly. This method responds fast and dynamically, with accurate control and strong robustness. The simulation experiment and the developed experimental device prove the feasibility and effectiveness of this compound control method.