无刷励磁同步风力发电机免疫单神经元控制

Control of Immune Single Neuron for Excitation System of Wind Brushless Synchronous Generator

根据同步无刷风力发电机系统的特点,提出了同步无刷励磁风力发电机励磁系统设计方法,采用可控硅静止励磁装置向交流励磁机定子励磁绕组提供直流励磁,励磁机输出交流电经过旋转整流器供给风力发电机励磁,根据风速变化,控制励磁机的励磁从而可以控制同步发电机的励磁,使得输出电压恒定;在额定风速以下,获得最大风能利用系数;额定风速以上,保证输出功率恒定;并采用免疫单神经元PID控制算法,使系统的抗干扰能力加强。

This paper presents a kind of excitation system of brushless synchronous generator according to the system characteristics. SCR static excitation devices are used to provide field current for stator field windings of auxiliary generator, AC from the exciter after a wind turbine rotating rectifier supply excitation, simply follow the changes of wind speed. To control the main exciter in order to control the excitation of synchronous generator, so that constant output voltage can be obtained. In the following wind speed rating, the largest wind energy utilization factor can be obtained; Over the wind speed rating, to make sure the output power is constant. In addition, immune single neuron PIDcontrol algorithm was used to strengthen the anti interference ability of the system.