摘要
文章讨论了单桥路SVG控制系统中,如何提取高精度、抗干扰能力强的同步信号问题。通过分析单桥路SVG控制系统,说明了同步信号的正确性和可靠性对于系统性能的重要影响。结合电路分析和数学推导,证明了硬件滤波和相位补偿能有效地克服电力系统中谐波源所造成的同步信号提取错误和同步信号过零振荡等问题,并且不会存在相位延迟,有效地提高了控制系统的控制性能。最后通过电路仿真与实际测试的结合,验证了文章提出的方法是合理可行的,能够有效提高同步信号的正确性和可靠性,从而提升单桥路SVG控制系统的性能。
The paper discusses how to extract the synchronous signal with high precision and strong anti-interference ability in single bridge SVG control system. By analyzing the single bridge SVG control system,the important influence of the correctness and reliability of synchronization signals on system performance is illustrated. Combined with circuit analysis and mathematical derivation, it is proved that the use of hardware filtering and phase-shift compensation can effectively overcome the problems of synchronous signal extraction error and zero crossing oscillation caused by harmonic source in power system, and there is no phase delay, which effectively improves the control performance of the control system. Finally, through the combination of circuit simulation and actual test, it is verified that the method proposed in the paper is reasonable and feasible, and can effectively improve the correctness and reliability of synchronization signals, so as to improve the performance of single-bridge SVG control system.
作者
郑荣顺俤
叶建祥
方健安
林传明
罗建平
无
Zheng Rongshundi;Ye Jianxiang;Fang Jianan;Lin Chuanming;Luo Jianping(Fujian Power Transmission and Transformation Engineering Co.,Ltd,Fuzhou 350011,China;Wuhan Kemov Electric Co.,Ltd,Wuhan 430223,China)
出处
《长江信息通信》
2021年第1期116-119,共4页
Changjiang Information & Communications
关键词
同步信号
相位偏差补偿
SVG
synchronizing signal
phase-shift compensation
SVG
