摘要
研究一种兼具大容量无功补偿能力的注入式并联混合有源滤波器,并分析其在工程应用中发现的直流侧电压抬升现象及这种现象产生的原因,在此基础上提出从采用多重化主电路结构、滞环控制法、回灌电流前馈控制法和脱离整流电源直接对直流侧电压进行控制等几个方面来抑制直流侧电压抬升的方法。考虑到是在原有已应用的系统上进行完善来避免直流侧电压的抬升,采用相对方便和简单的滞环控制和回灌电流前馈控制相结合的方法。仿真和现场应用结果证明所提出的方法能有效抑制直流侧电压的抬升,从而保障系统的安全稳定运行。
An injection type shunt hybrid active power filter was analyzed, it can suppress harmonic currents and compensate high capacity reactive power, nevertheless, a sharp boosting on DC-side voltage was found in application. Based on the analyses of the reasons, different solutions was proposed such as adoption of main circuit of multiple performances, the use of hysteretic control method, fore-feed control of reflowing current or direct control on DC-side voltage without a rectifier to supply. The method of combining the hysteretic control method and fore-feed control of reflowing current was adapted for its simpleness and efficiency considering that the system has been in operation. Experiment and application results show that the proposed methods can restrain the boosting efficiently, and they ensure safety and stabilization of the system.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2009年第9期8-15,共8页
Proceedings of the CSEE
基金
The National Basic Research Program of China(973Program)(2009CB219706)
The National High Technology Research and Develop-ment of China(863Program)(2008AA05Z211)~~
