电气工程学报 ›› 2021, Vol. 16 ›› Issue (3): 54-61.doi: 10.11985/2021.03.008

• 电力系统 • 上一篇    下一篇

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多类型元件混合直流电网机电暂态建模仿真*

徐攀腾1(), 朱博1(), 喻文翔2(), 宋述波1, 李建勋1, 樊友平2   

  1. 1.中国南方电网有限责任公司超高压输电公司广州局 广州 510500
    2.武汉大学电气与自动化学院 武汉 430072
  • 收稿日期:2021-02-05 修回日期:2021-05-21 出版日期:2021-09-25 发布日期:2021-10-29
  • 通讯作者: 喻文翔 E-mail:xupanteng1@163.com;tiger861220@163.com;1353011792@qq.com
  • 作者简介:* 喻文翔,男,1999年生,硕士研究生。主要研究方向为多端柔性直流输电系统。E-mail: 1353011792@qq.com
    徐攀腾,男,1981年生,硕士,高级工程师。主要研究方向为特高压直流输电/柔性直流输电系统研究及运行维护。E-mail: xupanteng1@163.com
    朱博,男,1986年生,硕士,工程师。主要研究方向为特高压多端柔性直流输电系统研究及运行维护。E-mail: tiger861220@163.com
  • 基金资助:
    * 国家重点研发计划资助项目(2016YFB0900903)

Electromechanical Transient Modeling and Simulation of Multi-type Component Hybrid DC Grid

XU Panteng1(), ZHU Bo1(), YU Wenxiang2(), SONG Shubo1, LI Jianxun1, FAN Youping2   

  1. 1. Guangzhou Bureau of China Southern Power Grid Co., Ltd., EHV Transmission Company, Guangzhou 510500
    2. School of Electrical and Automation, Wuhan University, Wuhan 430072
  • Received:2021-02-05 Revised:2021-05-21 Online:2021-09-25 Published:2021-10-29
  • Contact: YU Wenxiang E-mail:xupanteng1@163.com;tiger861220@163.com;1353011792@qq.com

摘要:

由电网换相换流器(Line commutated converter, LCC)与电压源型换流器(Voltage source converter, VSC)构成的混合直流电网有望成为未来直流网络中一种新的表现形式,针对混合直流电网中的各类型组成元件,提出了一种较为全面的混合直流电网机电暂态建模方法。首先分析了混合直流电网中的组成元件,并建立了各组成元件的机电暂态模型;随后分析了各类型换流器的控制系统模型;最终将所建立的机电暂态模型应用在四端混合直流电网算例仿真中,将3种工况下的机电暂态与电磁暂态仿真结果进行对比分析,验证了所提出的混合直流电网机电暂态建模方法的可行性。

关键词: 混合直流电网, 机电暂态模型, 仿真对比, LCC, MMC

Abstract:

The hybrid DC grid composed of the line commutated converter (LCC) and the voltage source converter (VSC) is expected to become a new manifestation of the future DC network. In view of the various types of components in the hybrid DC grid, a comprehensive electromechanical transient modeling method for hybrid DC grid is proposed. First, the components in the hybrid DC power grid are analyzed, and the electro-mechanical transient model of each component is established; then the control system models of various types of converters are analyzed; finally the established electromechanical transient model is applied to the four-terminal hybrid. In the simulation of the DC grid example, the electromechanical transient and electro-magnetic transient simulation results under three working conditions are compared and analyzed, and the feasibility of the proposed hybrid DC grid electromechanical transient modeling method is verified.

Key words: Hybrid DC grid, electromechanical transient model, simulation comparison, LCC, MMC

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