An AC active power regulation method for MMC by employing the internal energy

被引：5
作者：
Lu, Xiaojun [1 ]
Wang, Qi [2 ,3 ]
Yang, Zhangbin [4 ,5 ]
Zhang, Sixiang [2 ]
Luo, Daijun [2 ]
Li, Mengbo [1 ]
Chen, Gong [1 ]
机构：
[1] Changjiang Inst Survey Planning Design & Res Co L, Jiefang Ave 1863, Wuhan 430010, Peoples R China
[2] China Three Gorges Construct Engn Corp, Fucheng Ave 288, Chengdu 610041, Peoples R China
[3] Chongqing Univ, Shazheng St 174, Chongqing 400044, Peoples R China
[4] Chinese Acad Sci, Inst Elect Engn, Beiertiao Rd 6, Beijing 100190, Peoples R China
[5] Univ Chinese Acad Sci, Yuquan Rd 19, Beijing 100049, Peoples R China
来源：
ENERGY REPORTS | 2022年 / 8卷
关键词：
Modular multilevel converter; Offshore wind power; Active power regulation; Internal energy; VSC-HVDC; SYSTEM;
D O I：
10.1016/j.egyr.2022.05.174
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Similar to the onshore wind power integrated through AC transmission, the offshore wind power integrated through the modular multilevel converter (MMC) based HVDC also lays remarkable impacts on the stability of the power system. According to grid codes, offshore wind power should be capable of adjusting its active power fast. This paper proposes a fast regulation method at the onshore point of common coupling for offshore wind power by utilizing the energy stored in the distributed capacitors in the MMC. By carefully designing the curve of capacitor energy, the active power can vary expectedly. Meanwhile, no disturbance is placed on the DC-side active power or DC voltage. The effectiveness of the proposed method is verified by electromagnetic simulation. (C) 2022 The Authors. Published by Elsevier Ltd.
引用
收藏
页码：1052 / 1059
页数：8
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