Dynamic Frequency Characteristics and Countermeasures of Power Grid With Highly Penetrated Photovoltaics

被引：0
|
作者：
Zheng C. [1 ]
Wang S. [2 ]
Zhang B. [3 ]
Lü S. [1 ]
Chen Y. [1 ]
机构：
[1] China Electric Power Research Institute, Haidian District, Beijing
[2] School of Electrical and Electronic Engineering, North China Electric Power University, Baoding, 071003, Hebei
[3] State Grid Tibet Electric Power Research Institute, Lhasa, 850000, Tibet Autonomous Region
来源：
Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Countermeasures; Dynamic characteristic; High penetration; Photovoltaic power generation; Power system frequency;
D O I：
10.13335/j.1000-3673.pst.2018.2706
中图分类号：
学科分类号：
摘要：
Power grid with highly penetrated photovoltaics is one of the typical scenes of power electronic power system. Large-scale photovoltaic access significantly affects the dynamic frequency characteristics of the power grid. In this paper, the frequency variation law of power grid under unbalanced power impact is studied firstly, and the characteristics of typical response trajectory are analyzed by stages. Secondly, based on the model of photovoltaic power generation system, its differences to traditional power sources are pointed out, as well as its effect in different phases of frequency variation. Thirdly, the countermeasures to improve frequency response characteristics are put forward. Finally, the simulation results of the hybrid HVDC-AC power grid with highly penetrated photovoltaics verify correctness of the frequency dynamic characteristic analysis and effectiveness of the countermeasures. © 2019, Power System Technology Press. All right reserved.
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页码：4064 / 4073
页数：9
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