Startup control strategy for offshore wind power transmission system based on fundamental frequency modulation-based current source converter

被引：0

作者：

Li, Xiaobo ^{[1
]}

Feng, Dingteng ^{[1
]}

Yao, Chenhao ^{[1
]}

Xiong, Xiaoling ^{[1
]}

Zhao, Chengyong ^{[1
]}

机构：

[1] State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing

来源：

Dianli Zidonghua Shebei/Electric Power Automation Equipment | 2024年 / 44卷 / 09期

基金：

中国国家自然科学基金;

关键词：

black start; current source converter; DC power transmission; harmonic path; offshore wind power;

D O I：

10.16081/j.epae.202403009

中图分类号：

学科分类号：

摘要：

Fundamental frequency modulation-based current source converter（FFM-CSC） can significantly improve the power density and economy of offshore wind power transmission system. Existing black start methods require switching black start resistors on the AC side，but this method will increase the construction cost of offshore platforms. Therefore，a start-up method using FFM-CSC at AC side LC filter is proposed，which can improve the economy of the system’s black start scheme. The structure and steady-state control strategy of the offshore wind power transmission system are analyzed. In order to analyze the black start principle，a mathematical model is established for the sending-end CSC under no-load conditions at AC side，and the equivalent fundamental and harmonic paths at AC side are proposed. On this basis，a black start control strategy for the offshore wind power transmission system is proposed. The simulation verification is conducted based on PSCAD／EMTDC，and the results show that the proposed black start strategy can establish the wind farm grid voltage when the AC side is unloaded，and smoothly complete the black start of offshore wind farm. © 2024 Electric Power Automation Equipment Press. All rights reserved.

引用

页码：65 / 72

页数：7

共 21 条

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