中国电机工程学报Issue(4)：635-643,9.DOI:10.13334/j.0258-8013.pcsee.2014.04.016
计及VSC-HVDC的交直流系统最优潮流统一混合算法
Optimal Power Flow of AC-DC Systems With VSC-HVDC Based on a Novel Unified Hybrid Algorithm
摘要
Abstract
Due to the influence of truncation error and the limit of voltage source converter based high voltage direct current (VSC-HVDC) control mode, alternating iterative hybrid algorithm based on evolutionary algorithm and interior point method (IPM) for solving optimal power flow (OPF) problem of AC-DC power system with VSC-HVDC is easy to oscillate. A novel unified hybrid algorithm combining differential evolution (DE) with primal-dual interior point method (PDIPM) was proposed to solve the problem. The main idea of proposed algorithm was to optimize discrete variables by DE firstly and then optimize continuous variables and estimate fitness of DE population by PDIPM in every iteration step of DE algorithm. Global searching ability was improved because there’s no need to set VSC-HVDC control mode while using PDIPM to optimize continuous variables. Results of several test cases indicate great numerical stability and strong searching ability of the proposed hybrid algorithm. The algorithm can solve OPF problem of AC-DC power system with two-terminal, multi-terminal and multi-infeed VSC-HVDC successfully.关键词
电压源换流器/高压直流输电/交直流系统/最优潮流/统一混合算法/原对偶内点法/差分进化算法Key words
voltage source converter (VSC)/high voltage direct current/AC-DC power system/optimal power flow (OPF)/unified hybrid algorithm/primal-dual interior-point method (PDIPM)/differential evolution (DE) algorithm分类
信息技术与安全科学引用本文复制引用
卫志农,季聪,郑玉平,孙国强,孙永辉..计及VSC-HVDC的交直流系统最优潮流统一混合算法[J].中国电机工程学报,2014,(4):635-643,9.基金项目
国家自然科学基金项目(51277052，51107032，61104045)@@@@Project Supported by National Natural Science Foundation of China (51277052,51107032,61104045) （51277052，51107032，61104045）
