基于新型电力系统频率安全的源−荷−储协调优化策略
摘要：随着以新能源为主体的新型电力系统快速发展，如何保障系统频率安全已成为亟待解决的问题。为此，首先分析电力系统频率动态响应调节过程和多类型调节手段的特点。其次，通过研究反映新能源以任意功率并网时交流系统相对强度的运行广义短路比，将其与频率安全约束一起引入所提新型电力系统源-荷-储协调优化策略中，在此基础上，建立基于频率安全的源-荷-储协调优化组合模型，并利用粒子群算法求解全局最优解。最后，在Matlab/Simulink平台下，通过改进的IEEE-39节点系统对所提策略进行验证。结果表明，所提策略调节灵活、成本低，能够快速实现频率安全调节，保障新能源并网时电网强度满足要求，并抵抗频率剧烈波动。
Abstract:With rapid development of new power system dominated by new energy, how to ensure system frequency safety has become a problem needed to be solved urgently. Therefore, firstly, frequency dynamic response regulation process and characteristics of multiple types regulation methods in the power system were analyzed. Secondly, operation generalized short circuit ratio that reflects relative strength of AC system when new energy is connected to the grid at any power was studied and introduced into the given new power system source-load-storage coordination optimization strategy along with frequency safety constraints. On this basis, a source-load-storage coordination optimization combination model was established based on frequency safety, and particle swarm optimization algorithm was used to solve global optimal solution. Finally, the proposed strategy was validated through an improved IEEE-39 node system on the Matlab/Simulink platform. The results show that the proposed strategy is flexible and cost-effective, which can quickly achieve frequency safety regulation, ensure strength of power grid and resist violent frequency fluctuations when new energy is connected to the grid.
标题：基于新型电力系统频率安全的源−荷−储协调优化策略
英文标题：Source-load-storage Coordination Optimization Strategy Based on New Power System Frequency Security
作者：李晓辉, 刘豪, 董燕飞, 姚振明, 王雷涛,
关键词：新型电力系统, 新能源, 频率安全, 运行广义短路比, 协调优化,
发表日期：2025-02-10
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