Mechanism Analysis of Transient Overvoltage with Large Disturbance Considering Dynamic Characteristics of Wind Generator

被引：0

作者：

Tu J. ^{[1
]}

Zhang J. ^{[1
]}

Liu M. ^{[2
]}

Pan Y. ^{[3
]}

Xi G. ^{[1
]}

Yi J. ^{[1
]}

机构：

[1] State Key Laboratory of Power Grid Safety and Energy Conservation, China Electric Power Research Institute, Beijing

[2] National Electric Power Dispatching and Control Center, Beijing

[3] North China Branch of State Grid Corporation of China, Beijing

来源：

Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2020年 / 44卷 / 11期

关键词：

Contingency types; Low voltage ride-through (LVRT); Transient overvoltage; Wind generator model;

D O I：

10.7500/AEPS20190609005

中图分类号：

学科分类号：

摘要：

Under the background of centralized access of large-capacity high voltage direct current (HVDC) and high-ratio renewable energy resources, the problem of transient overvoltage has severely constrained the transmission capacity of HVDC and interconnection capacity of wind power, so it is quite necessary to conduct further studies on mechanism and influencing factors of transient overvoltage under large disturbance considering dynamic characteristics of wind generators. The study is conducted through both theoretical derivation and simulation analysis. Firstly, the theoretical equations for calculating transient voltage magnitude of converter station and wind generator side after AC/DC contingency are derived. Then, the mechanism and main influencing factors of transient overvoltage caused by AC/DC contingency are analyzed. Finally, the impact of different active/reactive power characteristics of wind generator during low voltage ride-through (LVRT) on transient overvoltage is analyzed combined with simulations. All the conclusions are verified through the simulation of practical case systems. The study results show that the LVRT characteristic of wind generator makes the wind farm be another "reactive power source" resulting in transient overvoltage besides the converter station, and the severer of the transient overvoltage will be caused by the smaller active power output and the larger reactive power output for the wind generator. © 2020 Automation of Electric Power Systems Press.

引用

页码：197 / 205

页数：8

共 23 条

[1]

LI Mingjie, Characteristic analysis and operational control of large-scale hybrid UHV AC/DC power grids, Power System Technology, 40, 4, pp. 985-991, (2016)

[2]

CHEN Guoping, LI Mingjie, XU Tao, System protection and its key technologies of UHV AC and DC power grid, Automation of Electric Power Systems, 42, 22, pp. 2-10, (2018)

[3]

CHEN Guoping, LI Mingjie, XU Tao, Et al., Practice and challenge of renewable energy development based on interconnected power grids, Power System Technology, 41, 10, pp. 3095-3103, (2017)

[4]

LUO Yazhou, CHEN Dezhi, LI Yiqun, Et al., Design of system protection scheme for North China multi-UHV AC and DC strong coupling large receiving-end power grid, Automation of Electric Power Systems, 42, 22, pp. 11-18, (2018)

[5]

SHAO Guanghui, HOU Kaiyuan, WANG Kefei, Et al., System protection scheme for over frequency of sending-end power grid caused by ultra-HVDC blocking, Automation of Electric Power Systems, 42, 22, pp. 26-31, (2018)

[6]

TU Jingzhe, ZHANG Jian, LIU Mingsong, Et al., Study on wind turbine generators tripping caused by HVDC contingencies of wind-thermal-bundled HVDC transmission systems, Power System Technology, 39, 12, pp. 3333-3338, (2015)

[7]

HE Jingbo, ZHUANG Wei, XU Tao, Et al., Study on cascading tripping risk of wind turbines caused by transient overvoltage and its countermeasures, Power System Technology, 40, 6, pp. 1839-1844, (2016)

[8]

CAO Shengshun, ZHANG Wenchao, WANG Meng, Et al., Study on the transient fundamental frequency overvoltage of wind turbine generators in sending system when serious power disturbances occur in large-capacity UHVDC, High Voltage Engineering, 32, 1, pp. 1-8, (2017)

[9]

WANG Feng, LIU Tianqi, DING Yuanyuan, Et al., Calculation method and influencing factors of transient overvoltage caused by HVDC block, Power System Technology, 40, 10, pp. 3059-3065, (2016)

[10]

HAN Pingping, ZHANG Haitian, DING Ming, Et al., A coordinated HVRT strategy of large-scale wind power transmitted with HVDC system, Power System Technology, 42, 4, pp. 1086-1092, (2018)

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