中国电力 ›› 2019, Vol. 52 ›› Issue (2): 85-93.DOI: 10.11930/j.issn.1004-9649.201801106

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适用于多工况优化设计与重复仿真的MMC快速仿真平台

周国梁1, 谢竹君2, 向往2, 贺永杰2, 彭开军1, 梁言桥1   

  1. 1. 中国电力工程顾问集团中南电力设计院有限公司, 湖北 武汉 430074;
    2. 强电磁工程与新技术国家重点实验室(华中科技大学), 湖北 武汉 430074
  • 收稿日期:2018-01-25 修回日期:2018-10-18 出版日期:2019-02-05 发布日期:2019-03-27
  • 作者简介:周国梁(1980-),男,博士,高级工程师,从事直流输电技术研究,E-mail:zhouguoliang@csepdi.com;谢竹君(1992-),男,硕士,从事柔性直流输电损耗分析,模块化多电平换流器研究,E-mail:zhujun_xie@qq.com
  • 基金资助:
    国家自然科学基金智能电网联合基金项目(U1766211)

Fast Simulation Platform of MMC Suitable for Multi-case Optimization Design and Repetitive Simulation

ZHOU Guoliang1, XIE Zhujun2, XIANG Wang2, HE Yongjie2, PENG Kaijun1, LIANG Yanqiao1   

  1. 1. Central Southern China Electric Power Design Institute Co. Ltd. of China Power Engineering Consulting Group Corporation, Wuhan 430074, China;
    2. State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology), Wuhan 430074, China
  • Received:2018-01-25 Revised:2018-10-18 Online:2019-02-05 Published:2019-03-27

摘要: 针对PSCAD/EMTDC下MMC仿真模型仿真速度慢,进行多工况优化设计与重复仿真效率低等问题,基于Matlab以M语言构建了MMC的快速仿真平台。该快速仿真平台的电气部分采用Dommel算法求解,控制部分采用梯形积分法求解。阐述了电气部分各主要元件的Dommel算法建模方法,提出了电气部分的求解方法以及电气部分和控制部分的联立求解方法。通过与基于PSCAD/EMTDC的MMC详细电磁暂态程序对比,仿真结果验证了基于Matlab的M语言MMC仿真平台的正确性。所开发的MMC快速仿真平台可以作为MMC阀损计算,过电压计算等需要多工况优化设计与重复仿真的内核仿真程序。

关键词: 模块化多电平换流器(MMC), 改进节点电压分析法, 快速模型, 重复仿真, Dommel算法

Abstract: Aiming at the problem of the low simulation speed of MMC on PSCAD/EMTDC platform and the low efficiency of optimization design and repetitive simulations under different operating conditions, a Matlab-based fast simulation platform of MMC is constructed using M-language, which is solved using the Dommel algorithm and the trapezoidal integration method respectively for the electrical part and the control part. The modelling methods of the main electrical components with the Dommel algorithm are introduced, and the solving method for the electrical parts and the unified solving methods for the electrical part and control part are proposed. The simulation result of the proposed platform in this paper is compared with that of the PSCAD/EMTDC-based MMC modelling program, which has verified the correctness of the new fast simulation platform. The proposed simulation platform can be used as the core driver for MMC study such as the power loss calculation and overvoltage calculation, where repetitive simulations are required under different operating conditions.

Key words: modular multi-level converter (MMC), improved nodal analysis, fast modal, repetitive simulation, Dommel algorithm

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