基于双PWM变流器的笼型异步发电系统研究  

Study of squirrel cage induction generator system based on the dual PWM converter

作　　者：廖一旭[1] 卢子广[1] 盛洋波[1] 胡立坤[1] 

机构地区：[1]广西大学电气工程学院,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2013年第5期1179-1186,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51177018);广西教育厅科研项目(201012MS007)

摘　　要：为了提高笼型异步发电机并网系统的低电压穿越能力和抗干扰能力,采用双PWM变流器设计了发电机并网系统。在并网控制系统中,机侧变流器采用一种不依赖于发电机参数的控制方法,实现有功功率的灵活调节和机端电压的稳定控制;网侧变流器采用电压定向矢量控制,实现直流电压和网侧无功功率的有效调节。仿真和实验结果表明,所提方法可以较好地实现发电系统并网运行,具有较好鲁棒性。In order to improve the low voltage ride through ability and the anti-jamming ability of the grid-connected system for the squirrel cage induction generator （SCIG）, a grid-connected system for generator based on dual PWM converters is designed. In this system, a control strategy which does not depend on generator parameters for machine-side converter is proposed. This system can control active power flexibly and keep the terminal voltage constant. A voltage oriented vector control strate- gy for the grid-side converter is used to regulate dc-link voltage and grid-side reactive power direct- ly. Simulation and experiment results show that grid-connected operation is well realized with the proposed method while robustness is obtained.

关 键 词：笼型异步发电机 双PWM变流器 矢量控制 有功和无功控制 

分 类 号：TM343[电气工程—电机]