基于直接功率控制的定子双绕组感应发电机系统电压调节技术  

Voltage Regulation for the Dual Stator-winding Induction Generator Based on the Direct Power Control

作　　者：李勇[1] 胡育文[1] 陈光辉[1] 黄文新[1] 邱景峰[1] 张勇[1] 刘陵顺[1] 

机构地区：[1]航空电源航空科技重点实验室(南京航空航天大学),江苏省南京市210016

出　　处：《中国电机工程学报》2008年第26期111-117,共7页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50577032);航空科学基金项目(04F52039)~~

摘　　要：分析了定子双绕组感应发电机(dual stator-winding induction generator,DWIG)系统电压控制机理,并由此揭示了控制绕组瞬时功率对系统电压的影响,在此基础上提出了DWIG发电系统的直接功率控制策略,即根据控制绕组端电压所在的扇区和功率滞环比较器的输出,选取优化开关表中合适的电压矢量,以对控制侧瞬时功率实施直接控制。该控制结构由控制绕组指令功率生成、控制绕组瞬时功率计算、功率滞环及优化开关表等模块组成,该文对其进行了详细分析。在一台18kW原理样机系统上的试验结果证明了该控制策略的有效性。A control strategy based on the control winding instantaneous power direct control for dual stator winding induction generator （DWIG） system is proposed. The control mechanism is firstly analyzed, and influence of the instantaneous active and reactive power in the control winding on the system voltage is disclosed. The strategy of the direct power control by selecting approporiate voltage vectors is then presented, through which the power errors are restricted in a certain band. The pulse width modulation is formed to realize the system voltage control. The detailed description on the DPC part is presented, including the command power generation, the instantaneous active and reactive power calculation, the power hysteresis and the optimal switching table. Experiments on a 18 kW DWIG system are provided to demonstrate the effectiveness.

关 键 词：定子双绕组感应发电机 静止励磁控制器 直接功率控制 优化开关表 独立发电系统 

分 类 号：TM761[电气工程—电力系统及自动化]