Open AccessAnalytic of VSC-HVDC Interconnected Power Systems from a Perspective of Frequency Security
Author(s) -
Liuzhu Zhu,
Jing Ma,
Jiayin Xu,
Yu-Ming Shen,
Enhui Zhang,
Xizhao Luo,
Fubin Mao,
Lijun Wang,
Kai Xia,
Mengmeng Yang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/675/1/012075
Subject(s) - electric power system , reliability (semiconductor) , voltage source , transmission system , high voltage direct current , power (physics) , power transmission , computer science , control theory (sociology) , transmission (telecommunications) , reliability engineering , voltage , electronic engineering , engineering , direct current , electrical engineering , telecommunications , physics , control (management) , quantum mechanics , artificial intelligence
In the interconnected power systems with VSC-HVDC (Voltage Source Converter-High Voltage Direct Current) transmission links, the failures of VSC-HVDC system can cause large power imbalance for both sending-end and receiving-end power systems. In this paper, the reliability model of the VSC-HVDC system is developed based on series-parallel structure recognition. The frequency dynamics of the power systems are characterized considering the frequency regulation of the power systems in response to the power imbalance arise from the component failures. Moreover, the Monte Carlo simulation method is applied to analyze the frequency dynamics in different contingencies. The indices measuring the frequency stability and the reliability of the interconnected power systems are introduced.