• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2017, Vol. 38 ›› Issue (2): 84-.doi: 10.3969/j.issn.1000-7229.2017.02.012

• 智能电网 • 上一篇    下一篇

直流配电网PV型电源建模及与VSC模型的对比

查燚,朱卉,张延迟,解大   

  1. 查燚1,朱卉2,张延迟1,解大2
  • 出版日期:2017-02-01
  • 作者简介:查燚(1992),男,硕士研究生,研究方向为电力系统及其自动化;朱卉(1992),女,硕士研究生,研究方向为电力系统及其自动化;张延迟(1967),男,博士,副教授,主要研究方向为并网型风力发电机和电力系统仿真;解 大(1969),男,通信作者,博士,副教授,研究方向为电力系统分析、灵活交流输电设备、新能源。
  • 基金资助:
    国家高技术研究发展计划项目(863计划)(2015AA050103)

PV Power Supply Modeling of DC Power Distribution Network and Comparison with VSC Model

ZHA Yi, ZHU Hui, ZHANG Yanchi, XIE Da#br#   

  1. ZHA Yi1, ZHU Hui2, ZHANG Yanchi2, XIE Da2
  • Online:2017-02-01
  • Supported by:
    Project supported by the National High Technology Research and Development Program(863 Program) (2015AA050103)

摘要: 针对直流配电网的构建问题,考虑实际变流器电气特性,提出了一种新型的直流电源建模方法。该方法避免了对直流配电网中电力电子元器件的精细建模,最大程度上模拟直流配电系统的电气特性,极大地减少了计算机仿真系统的工作量,便于对更大规模直流配电网进行研究分析。以功率需求为出发点,通过调节系统参数,根据P-U下垂特性控制直流电压输出。为验证这一新型建模方法的有效性与优越性,对电压源性变流器(voltage sourced converter, VSC)模型进行了同条件仿真,并将2种模型的结果进行对比,最终验证了该模型可用于直流配电网的分析与研究。

关键词: 直流配电网, 下垂特性, 直流电源, 动态特性

Abstract: In view of the construction of DC power distribution network, considering the electrical characteristics of the actual converter, this paper proposes a new modeling method of DC power supply. This method avoids the fine modeling of power electronic components in DC power distribution network, simulates the electrical characteristics of DC power distribution system to the maximum extent, greatly reduces the workload of computer simulation system, and is convenient to study and analyze the larger DC distribution network. Taking the power demand as the starting point, by adjusting the system parameters, the DC voltage output is controlled according to the droop characteristic of P-U. In order to verify the effectiveness and superiority of the new modeling method, this paper simulates the voltage sourced converter (VSC) model under same conditions and compares the resulting of the two models, finally validates that the model can be used for the analysis and research of DC power distribution network.

Key words: DC power distribution network, droop characteristic, DC power supply, dynamic characteristic

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