基于永磁同步发电机可控整流稳压发电系统研究  

Study of Constant Voltage Generation System Based on Current Amplitude Voltage Angle Control

作　　者：牛建民 卢亚辉[1] 徐保荣[1] NIU Jianming;LU Yahui;XU Baorong(Unit32184,People′s Liberation Army of China,Beijing 100071,China)

机构地区：[1]中国人民解放军32184部队,北京100071

出　　处：《机电工程技术》2020年第7期53-55,87,共4页Mechanical & Electrical Engineering Technology

摘　　要：永磁同步发电机宽转速工作范围稳压发电系统作为一种供电电源需求,得到了越来越广泛的应用。针对双环全控整流发电系统在发电机高速运行时电流环交叉耦合及饱和失控问题,推导了小信号模型稳定性分析,得出了PI参数对系统稳定范围的影响,并对恒压发电系统高速失稳进行了分析。在此基础上提出了采用基于电流幅值控制的直接电压角度可控整流发电实现深度弱磁运行,并实现了低速运行时采用双环可控整流发电与高速弱磁时直接电压角度之间的平滑切换。通过仿真与实验验证,该方法可实现永磁同步电机在宽转速、宽功率变化范围内的恒压发电输出。Permanent magnet synchronous generator(PMSG) with wide speed range is widely used as a power supply.Aiming at the problems of cross coupling and saturation out of control of current loop in double loop full control rectifier power generation system when the generator was running at high speed,the stability analysis of small signal model was deduced,and the influence of PI parameters on the stability range of the system was obtained,and the high-speed instability of constant voltage power generation system was analyzed.On this basis,a direct voltage angle controlled rectifier based on current amplitude control was proposed to realize the deep field weakening operation,and the smooth switching between the double loop controllable rectifier power generation at low speed and the direct voltage angle at high speed field weakening was realized.Through simulation and experimental verification,this method can realize the constant voltage power output of PMSM in a wide range of speed and power variation.

关 键 词：稳压发电 双环可控发电系统 电压角度控制 永磁同步发电机 

分 类 号：TM313[电气工程—电机]