College of Electrical and Control Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
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Received
Published
Revised
2025-05-09
2026-03-18
2025-12-17
Online Date
2026-06-26
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摘要
针对电力电子化配电网谐波源随机波动引发的治理效率与成本问题,提出融合谐波源随机表征与多目标粒子群-遗传算法 (multi-objective particle swarm optimization-genetic algorithm,MOPSO-GA)的并联有源电力滤波器 (shunt active power filter,SAPF)优化配置策略。基于中心极限定理,采用正态分布与均匀分布构建谐波幅值与相位的概率模型,结合MOPSO-GA算法实现多目标优化。仿真结果表明,在IEEE 18节点系统中仅配置3台SAPF即可将总谐波畸变率从19.88%降至3.32%,电压偏差从10.4%控制至4.5%,SAPF较传统MOPSO算法减少1台,总容量更经济,算法收敛速度与帕累托前沿分布性显著提升。并进一步通过RT-Lab半实物实验平台验证,在真实谐波源下将关键节点谐波电压畸变率从25.24%降至2.12%,该策略为复杂配电网谐波治理提供高效经济的解决方案。
Abstract
The issues of governance efficiency and cost caused by the stochastic fluctuations of harmonic sources in power-electronic distribution networks were addressed, and an optimal configuration strategy for shunt active power filters (SAPF) integrating the stochastic characterization of harmonic sources and the,multi-objective particle swarm optimization-genetic algorithm (MOPSO-GA) was proposed. Based on the central limit theorem, probability models for harmonic amplitude and phase were constructed using normal distribution and uniform distribution, and multi-objective optimization was achieved by combining the MOPSO-GA algorithm. Simulation results show that in the IEEE 18-bus system, when only 3 SAPFs are configured, the total harmonic distortion is reduced from 19.88% to 3.32%, and the voltage deviation is controlled from 10.4% to 4.5%. Compared with the traditional MOPSO algorithm, the number of SAPFs is reduced by one, the total capacity is more economical, and the convergence speed of the algorithm and the distribution of the Pareto front are significantly improved. Furthermore, the strategy was verified through an RT-Lab hardware-in-the-loop experimental platform. Under realistic harmonic source conditions, the voltage total harmonic distortion (THD) at the critical node is reduced from 25.24% to 2.12%. This strategy provides an efficient and economical solution for harmonic mitigation in complex distribution networks.
ZHANG Teng-ya, SHI Yong, LI Xin, LI Jia-wei.
Optimal Configuration Strategy of SAPF Incorporating Stochastic Characterization of Harmonic Sources and MOPSO-GA Dynamic Crossover Algorithm[J].
Science Technology and Engineering, 2026, 26(8): 3349-3358 DOI:10.12404/j.issn.1671-1815.2503384
随着电力电子设备的高密度渗透,配电网中的谐波源呈现出密集化、分散化和全网化特征[1-3]。在工业园区中,电弧炉、工业电机、变频器等非线性负载占比持续攀升,其工况不确定性导致谐波电流随机波动特征[4]。在此背景下,并联有源电力滤波器(shunt active power filter, SAPF)因其动态补偿特性、精确负载跟踪及接入位置选择灵活,成为应对复杂谐波污染的核心装备[5-8]。SAPF在实际工作中的治理效果依赖容量、地点等配置的合理性,不当配置将导致SAPF过载、谐波抑制盲区等问题[9]。
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