摘要
交流滤波器组对提高高压/特高压直流输电系统的安全稳定运行能力具有重要作用,滤波器组中的高压电容通常由多个电容器串并联构成,由于各电容器的实际电容值较其额定值均存在一定偏差,造成高压电容4个桥臂的电容值不平衡,进而影响滤波器组性能。本文根据检修过程中对高压电容器中各个电容的实际电容值,以4个桥臂电容值的不平衡度最小为优化目标建立了电容器均衡排列优化模型,采用改进粒子群优化算法进行模型求解,得出电容器均衡排列方案,通过Matlab仿真验证了该方法的正确性和实用性。本文为提高直流输电系统滤波器组的滤波性能和无功补偿能力具有参考价值。
AC filter bank plays an important role in improving safe and stable operation ability of HV/UHV DC transmission.The HV capacitor in filter bank mainly consists of multiple capacitors in series and parallel connection.The capacitance of four bridge arm of HV capacitors is not in balance because the actual capacitance of each capacitor,compared to its rated value,has a definite deviation,thus the performance of the filter is affected.In this paper,the equilibrium arrangement optimization model of capacitor is set up in accordance with the actual capacitance of each capacitor in the HV capacitors during the maintenance and also with the minimum unbalance degree of four bridge arm’s capacitance is optimization target.The solution of the model is performed by the use of improved PSO algorithm so to obtain equilibrium arrangement plan of capacitor.The correctness and practicability of the method is simulated and verified by Matlab,which has reference value in improving filter performance and reactive power compensation ability of filter bank of HVDC transmission system.
作者
黄银龙
赵胜男
董超群
罗晓晨
罗光辉
HUANG Yinlong;ZHAO Shengnan;DONG Chaoqun;LUO Xiaochen;LUO Guanghui(State Grid Henan Maintenance Company,Zhengzhou 450000,China;Zhengzhou Xianghe Group Co.,Ltd.,Zhengzhou 450000,China)
出处
《电力电容器与无功补偿》
北大核心
2018年第5期13-18,共6页
Power Capacitor & Reactive Power Compensation
