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ISSN 0254-0096 CN 11-2082/K

太阳能学报 ›› 2022, Vol. 43 ›› Issue (2): 157-162.DOI: 10.19912/j.0254-0096.tynxb.2020-0349

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适应新能源高占比系统的低频减载优化方法

盛四清, 赵文天, 樊茂森   

  1. 华北电力大学电气与电子工程学院,保定 071003
  • 收稿日期:2020-04-17 出版日期:2022-02-28 发布日期:2022-08-28
  • 通讯作者: 盛四清(1965—),男,博士、教授,主要从事电力系统分析与控制、电力系统调度运行与控制、人工智能及其在电力系统中的应用等方面的研究。sqsheng@ncepu.edu.cn

OPTIMIZATION METHOD OF UFLS FOR HIGH PROPORTION OF NEW ENERGY PROPORTION SYSTEM

Sheng Siqing, Zhao Wentian, Fan Maosen   

  1. School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, China
  • Received:2020-04-17 Online:2022-02-28 Published:2022-08-28

摘要: 该文介绍考虑低频减载反馈环节的改进频率响应模型,分析了传统低频减载方案在新能源高占比电力系统中的不足,提出一种基于频率变化率的多次加速减载的优化方法。在Matlab/Simulink中进行仿真,结果证明了优化方法的有效性。与传统低频减载方案相比,优化方案减载量更少,系统频率恢复更加快速稳定,在新能源高占比系统中具有更强的经济性和适应性。

关键词: 新能源, 电力系统, 频率稳定, 电力减载, 低频减载

Abstract: This article introduces an improved frequency response model that considers the feedback element of under frequency load shedding and analyzes the deficiencies of traditional under frequency load shedding schemes in high proportion of new energy electric power systems, and puts forward a multiple accelerated load shedding optimization method based on frequency changing rate. Simulating in MATLAB/ Simulink shows the validity of the optimization method. Compared with the traditional under frequency load shedding scheme, the optimized scheme has less load shedding, faster and system frequency recovers faster and more stable, which has stronger economical efficiency and adaptability in high proportion of new energy system.

Key words: new energy, electric power systems, frequency stability, electric load shedding, under frequency load shedding

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