基于BEGS-SQP的微电网孤岛模式下垂控制器参数优化  

A BEGS-SQP Method to Optimize the Droop Controller Parameters in Island Microgrid

作　　者：谢代钰 韦鑫 巫聪云 韦博耀 周思思 XIE Daiyu;WEI Xin;WU Congyun;WEI Boyao;ZHOU Sisi(Guangxi Power Grid Dispatching Control Center,Guangxi Nanning,530023,China;Beihai Power Supply Bureau of Guangxi Power Grid Co.,Ltd.,Guangxi Beihai 536000,China)

机构地区：[1]广西电网有限责任公司电力调度控制中心,广西南宁530023 [2]广西电网有限责任公司北海供电局,广西北海536000

出　　处：《广西电力》2024年第2期1-7,25,共8页Guangxi Electric Power

摘　　要：本文基于Broyden-Fletcher-Goldfarb-Shanno的序列二次规划法BFGS-SQP提出了微电网孤岛模式的下垂控制器参数优化方法,以解决现有方法由于特征值函数的非光滑性而无法同时保证最优性和收敛性的难题。该方法考虑了多种运行方式下微电网的稳定性,建立了以谱横坐标函数为目标函数的小干扰稳定约束的优化模型,通过BFGS-SQP算法实现对所建非光滑优化模型的求解。以微电网系统进行仿真,结果表明了BFGS-SQP方法的有效性。Due to the nonsmooth property of eigenvalue function,existing algorithms cannot solve a droop controller parameters optimization problem with optimality and convergence guarantees.To tackle the problem,this paper proposes an optimization method based on Broyden-Fletcher-Goldfarb-Shanno combined with sequential quadratic programming(BFGS-SQP).The method considers the multiple conditions to guarantee the microgrid can operate in different conditions.Then,a droop controller parameters optimization model with a small-signal stability constraint is presented.The BFGS-SQP algorithm is adopted to solve the nonsmooth model.A case study on the microgrid system demonstrates the effectiveness of the BFGS-SQP method.

关 键 词：微电网 小干扰稳定 BFGS-SQP 下垂控制 非光滑 

分 类 号：TM712[电气工程—电力系统及自动化]