摘要
针对以往电网故障时风力发电机易发生低电压或其他某种干扰的问题,提出一种基于转子串联独立电源的双馈式异步发电机,包括与其机械连接的励磁机,与其转子及励磁机连接的变流器。励磁机用以保证变流器的电压稳定,变流器不直接连接到电网,从而可以使变流器在发生低电压事故期间连续工作。
Aiming at the problems for wind generator such as low voltage or other disturbs during power grid failure, a DFIG based on rotor series connected with independent electric source has been proposed, which includes exciter with mechanical connection and converter connected with rotor and exciter. The exciter is used for stabilizing the voltage of converter. The converter does not connect into the grid directly, which allows the converter to run continuously during low voltage.
出处
《吉林电力》
2014年第5期20-23,共4页
Jilin Electric Power
