基于改进混沌差分算法的恒功率无功补偿策略研究

Research on Strategy of Constant Power Reactive Power Compensation Based on Improved Chaotic Difference Algorithm

以三相负载不对称的电力系统为模型,介绍了电力系统传统的补偿方式,阐述了基于混沌差分算法的恒功率计算策略原理及算法实现过程,使用Matlab编制了基于混沌差分恒功率计算法的仿真算法,分析了在给定功率条件下,电力系统三相不平衡在采用恒功率无功补偿方式后的电流特性。并在差分进化算法的基础上,引入混沌优化算法,得到改进混沌差分算法,增强优化搜索能力。仿真结果表明:此优化算法可以快速而精准地计算出最适合系统无功的补偿方式,且所产生的误差最小、系统鲁棒性强。

Taking the power system of three-phase asymmetry load as a model, this paper introduced the traditional compensation method for the power system, expounded the constant power calculation strategy principle and algorithm realization process based on chaotic difference algorithm and used Matlab to compile the simulation algorithm based on the chaotic difference constant power. This paper analyzed the current characteristics of the power system three-phase unbalance after adopting constant power reactive power compensation mode under given power conditions. On the basis of the differential evolution algorithm, this paper introduced the chaostic optimization algorithm to enhance the search capability. Simulation results show that this algorithm can quickly and accurately calculate the most suitable system reactive power compensa- tion mode, the error is the least, and the system is robust.