赵大伟;马进;钱敏慧;王万成;姚良忠;韩肖清;

• 1:新能源电力系统国家重点实验室(华北电力大学)
• 2:新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司)
• 3:河海大学能源与电气学院
• 4:电力系统运行与控制山西省重点实验室(太原理工大学)

摘要(Abstract)：

随着光伏发电等新能源的大规模快速发展,电力系统对其参与一次调频提出了相关要求。调频控制增益(调差系数的倒数)是一次调频控制的关键参数,目前其主要参照常规电源机组设置值和部分仿真计算结果制定,欠缺理论分析,国内外不同机构或标准提出的参数推荐值差异较大,不合适的参数可能导致频率调节不稳定。文中首先介绍了国内外有关光伏发电参与一次调频的技术要求,然后建立了光伏电站接入系统的一次调频控制分析模型,鉴于该模型含有死区和饱和等非线性环节,采用基于描述函数的非线性奈奎斯特稳定性判据分析了光伏电站接入系统前后调频控制增益的稳定范围。单机系统和两机系统算例仿真结果验证了所述分析方法和结果的正确性,该分析方法容易推广应用于风电等其它系统,分析结果可对相关标准和现场调频装置参数整定提供借鉴。

关键词(KeyWords)： 光伏电站;大电网;一次调频;控制增益;稳定性;描述函数法

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划项目(2016YFB0900100);; 国家自然科学基金项目(51607160)~~

作者(Author): 赵大伟;马进;钱敏慧;王万成;姚良忠;韩肖清;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.2739

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