谐波分析与滤波器优化配置软件在电力系统中的应用

根据滤波器投资费用最小的原则,结合改进的网络固有结构法和谐波潮流解耦算法,基于Matlab和Delphi语言开发出一套谐波分析与滤波器优化配置软件。除一般的谐波分析功能外,软件还具有两个特色功能：运用改进的网络固有结构法来分析串并联谐振,从而使系统谐振次数远离谐波次数,避免谐振以及由此引起的谐波放大问题;基于网络固有结构法确定电力系统中各次滤波器的最佳配置位置,并运用自适应差异进化算法对滤波器参数进行优化设计,使电网各节点的谐波指标能最大限度地满足国标要求,以达到抑制谐波的目的。此外,还开发出界面友好、功能强大的图形编辑器,研制出电力系统谐波潮流分析及滤波器优化配置综合软件包。对实际电力系统算例的计算和分析表明,所提出的方法正确有效,所研制的软件实用性强。

Application of Harmonic Analysis and Optimal Configuring of Filters Software in Power System

According to the principle of minimum filter investment cost, combined with the improved inherent structure of network with the harmonic flow algorithm, this paper developed a harmonic analysis and optimal configuring of filters software based on Matlab and Delphi. In general, the harmonic analysis software has two features： the sensitivity matrix factor of nodal admittance matrix in the grid method is used to analysis series resonance and parallel resonant, avoiding the problem of harmonic oscillator which causes the matter of harmonic amplification; determining the optimal location of each filter based on the inherent structure theory of network and using the adaptive differential evolution algorithm to design filter parameters optimization, making the grid harmonics of each node in GB range index to restrain harmonic of the network. In addition, this paper not only develops friendly interface and powerful graphics editor, but also develops integrated software package of the power system harmonic power flow analysis and optimal configuring of filters. Calculation and analysis of practical example in power system shows that the proposed method is correct and effective, which package is strong practicability.