摘要
潮流路由器作为一种交直流混联电网的潮流控制新型电力电子装置,其成本较高,且控制效果与之在电网中的位置强相关,因此带来首要考虑的选址定容技术问题;且由于潮流路由器数学模型的非线性非凸特性,针对发输电系统的传统规划手段不适用于潮流路由器的规划。针对上述问题,首先简单介绍了潮流路由器的概念及其潮流计算模型;其次建立了潮流路由器选址定容优化模型;然后将启发式算法与凸松弛算法相结合,提出基于双层迭代和半正定规划的求解方法,有效解决了上述模型的非线性非凸及混合整数规划求解难题。最后基于IEEE 30、IEEE 57和IEEE 118等标准算例系统进行仿真分析,仿真结果证明了所提选址定容方法的正确性和有效性,能够有效优化PFR的安装位置及其数量。
As a novel type of power electronics device for the power flow control in a hybrid AC and DC power system,the location and capacity optimization problem of power flow router(PFR)is the primary issue due to its high cost and strong relationship between the control effect and its location.In addition,considering the nonlinearity and non-convexi⁃ty of the mathematical model of PFR,the traditional planning method for the power generation and transmission system is not suitable for the PFR planning.To solve this problem,the definition and the general power flow calculation model of PFR are introduced briefly at first.Then,the location and capacity optimization model of PFR is established.In order to solve the nonlinear and non-convex mixed integer programming problem,the heuristic algorithm is combined with the convex relaxation algorithm,and a solving method based on bi-level iteration and semi-definite programming is pro⁃posed.Finally,case studies of IEEE 30-,57-and 118-node systems are conducted,and simulation results show that the proposed algorithm can effectively optimize the locations and numbers of PFRs,indicating its correctness and effec⁃tiveness.
作者
杨汾艳
李海波
盛超
卢启付
黄辉
YANG Fenyan;LI Haibo;SHENG Chao;LU Qifu;HUANG Hui(Electric Power Research Institute,Guangdong Power Grid Co.,Ltd,Guangzhou 510080,China;Sichuan Energy Internet Research Institute,Tsinghua University,Chengdu 610042,China)
出处
《电力系统及其自动化学报》
CSCD
北大核心
2020年第11期21-29,共9页
Proceedings of the CSU-EPSA
基金
国家重点研发计划资助项目(2018YFB0905105)
中国南方电网有限责任公司科技资助项目(GDKJQQ20161200)。
关键词
潮流路由器
选址定容优化
双层迭代
半正定规划
凸松弛
最优潮流
power flow router(PFR)
location and capacity optimization
bi-level iteration
semi-definite program⁃ming
convex relaxation
optimal power flow
