考虑谐振基于改进PSO算法的电容器优化配置  

Optimal Allocation of the Capacitor Based on Improved PSO Algorithm Considering Harmonic Resonance

作　　者：夏向阳[1] 徐林菊[1] 

机构地区：[1]长沙理工大学,湖南长沙410004

出　　处：《电力电容器与无功补偿》2012年第2期7-11,25,共6页Power Capacitor & Reactive Power Compensation

基　　金：广东省科技计划项目重大科技专项(2010A080804023);湖南省自然科学基金项目(2011JJ5027);长沙市科技计划项目(K1104024)~~

摘　　要：为了达到电容器的优化配置,避免配电网中电容器与系统、负荷阻抗发生串并联谐振,在考虑谐振的情况下,数学模型上将电容无功功率与串并联谐振频率的关系作为约束条件,采用改进的粒子群优化算法(PSO),提出时变的非线性三角函数方法来控制参数对电容器进行优化配置。最后将优化配置的电容器与优化前的经济费用、网损等进行比较,结果表明优化配置后的电容器具有明显的经济性,且有效地避免了谐振的发生。As for the problem of the series and system impedance and load impedance, in order parallel resonance between the capacitors and the to achieve the optimal allocation of capacitors and to avoid resonance, the relationship between the capacitive reactive power and series and parallel resonant frequency is put as a constraint in the mathematical model, considering the resonant case. The improved particle swarm optimization （PSO） that is time-varying nonlinear trigonometric func- tions to control parameters is proposed to optimize the allocation of the capacitor. Comparing the net loss and economic costs etc before and after the optimal allocation of capacitors, the results show that after the optimal allocation of the capacitors, it will be more economical, and effectively avoid the occurrence of resonance.

关 键 词：谐振 时变的非线性三角函数 电容器 优化配置 粒子群优化算法(PSO) 

分 类 号：TM531.4[电气工程—电器]