Topologies and control of low-frequency alternating current for offshore wind farms based on modular multilevel matrix converter

被引：7
|
作者：
Yuan, Chang [1 ]
Zhou, Ruibing [1 ]
Tong, Ming [1 ]
机构：
[1] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing, Peoples R China
来源：
JOURNAL OF ENGINEERING-JOE | 2019年 / 16期
关键词：
power grids; wind power plants; matrix convertors; power factor; power system control; EMTDC; PSCAD; LFAC offshore wind power grid-connected topological structure; LFAC transmission system; bi-directional power flow; direct electric energy conversion device; LFAC system; offshore wind power transmission; low-frequency alternating current transmission system; modular multilevel matrix converter; offshore wind farms;
D O I：
10.1049/joe.2018.8903
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
As a new alternative to power transmission, low-frequency alternating current (LFAC) transmission system has a bright future for offshore wind power transmission. As a core equipment for LFAC system, modularised multi-level matrix converter (M3C) is a direct electric energy conversion device, which can achieve bi-directional power flow and provide any value of the power factor. In this study, the application of LFAC transmission system based on M3C (M3C-LFAC) for offshore wind farms is studied. For the characteristics of LFAC transmission system for offshore wind power, four types of LFAC offshore wind power grid-connected topological structure are proposed, and related control strategies are designed. By use of PSCAD/EMTDC to verify the feasibility of the proposed schemes, the advantages of the proposed topologies are verified through different working conditions.
引用
收藏
页码：2271 / 2277
页数：7
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