新型电力系统频率紧急控制改进方案研究

doi:10.3969/j.issn.1008-0198.2022.04.003

湖南电力 ›› 2022, Vol. 42 ›› Issue (4): 13-17.doi: 10.3969/j.issn.1008-0198.2022.04.003

新型电力系统频率紧急控制改进方案研究

褚旭¹, 许立强², 严亚兵², 刘琦¹

1.国家电能变换与控制工程技术研究中心(湖南大学),湖南长沙 410082;
2.国网湖南省电力有限公司电力科学研究院,湖南长沙 410007

收稿日期:2022-07-11 出版日期:2022-08-25 发布日期:2022-10-14
基金资助:
湖南省自然科学基金资助项目(2020JJ5056);国家电网有限公司科技项目(5216A5210036)

Research on Improvement Scheme of Frequency Emergency Control for New Power System

CHU Xu¹, XU Liqiang², YAN Yabing², LIU Qi¹

1. National Electric Power Conversion and Control Engineering Technology Research Center, (Hunan University)Changsha 410082, China;
2. State Grid Hunan Electric Power Company Limited Research Institute, Changsha 410007, China

Received:2022-07-11 Online:2022-08-25 Published:2022-10-14

摘要/Abstract

摘要： 风电与光伏等可再生能源由于机组的功率特性、直流输电与光伏等逆变类电源的换流特性,所构成的新型电力系统惯性低、阻尼小,在电网大扰动场景下系统频率变化速度快、幅度大。因此,亟需研究适用于“双高”新型电力系统的频率紧急控制改进方案。在同步机类、逆变类电源频率特性分析基础上,提出一种计及配网有源化、储能与可再生能源协调配合的新型电力系统频率紧急控制改进方案,通过综合直接潮流算法计算主动配电网与主网间输电通道实时功率方向,根据“源”“负荷”属性实现频率调节,根据储能与可再生能源调节特性实现快速、高效系统频率紧急控制。

关键词: 可再生能源, 频率紧急控制, 储能, 有源配电网

Abstract: Due to the power characteristics of renewable energy units such as wind power and photovoltaics, and the commutation characteristics of inverter power sources such as DC transmission and photovoltaics, the new power system formed has low inertia and low damping. The system frequency changes quickly and the amplitude is large under the power grid big disturbance scenario. Therefore, it is urgent to study the frequency emergency control improvement scheme suitable for new power systems. Based on the analysis of the frequency characteristics of synchronous machines and inverters, this paper proposes a new power system frequency emergency control improvement scheme that considering distribution network activation, energy storage and renewable energy coordination. The algorithm calculates the real-time power direction of the transmission channel between the active distribution network and the main network, realizes frequency regulation according to the difference of power supply and load attributes, and realizes fast and efficient system frequency emergency control according to the regulation characteristics of energy storage and renewable energy.

Key words: renewable energy, frequency emergency control, stored energy, active distribution network

中图分类号:

TM712.3

褚旭, 许立强, 严亚兵, 刘琦. 新型电力系统频率紧急控制改进方案研究[J]. 湖南电力, 2022, 42(4): 13-17.

CHU Xu, XU Liqiang, YAN Yabing, LIU Qi. Research on Improvement Scheme of Frequency Emergency Control for New Power System[J]. Hunan Electric Power, 2022, 42(4): 13-17.

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新型电力系统频率紧急控制改进方案研究

Research on Improvement Scheme of Frequency Emergency Control for New Power System

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