电压源型直流输电变流器的直接功率控制研究

针对风电场并网电压源直流输电系统,在αβ坐标系下VSC-HVDC系统离散化数学模型基础上,结合瞬时功率理论和空间矢量脉冲宽度调制,提出了一种适用于VSC-HVDC系统的新开关表的直接功率控制。其中,风电场侧采用定有功功率和无功功率,电网侧采用定直流电压和无功功率,利用MATLAB/Simulink搭建相应的仿真模型,通过对有功、无功阶跃突变工况的仿真分析,验证了该方案的有效性和可行性,为风电场并网电压源高压直流输电系统提供了一种可行的控制方案。...

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Bibliographic Details
Published in电测与仪表 Vol. 54; no. 15; pp. 75 - 80
Main Author 黄政 吴杰
Format Journal Article
LanguageChinese
Published 贵州理工学院 电气与信息工程学院,贵阳,550003%上海交通大学 电气工程系,上海,200240 2017
Subjects
电压源换流器高压直流输电
瞬时功率
风电场
instantaneous power
电压源换流器高压直流输电
瞬时功率
wind farms
风电场
VSC-HVDC
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ISSN1001-1390

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Summary:针对风电场并网电压源直流输电系统,在αβ坐标系下VSC-HVDC系统离散化数学模型基础上,结合瞬时功率理论和空间矢量脉冲宽度调制,提出了一种适用于VSC-HVDC系统的新开关表的直接功率控制。其中,风电场侧采用定有功功率和无功功率,电网侧采用定直流电压和无功功率,利用MATLAB/Simulink搭建相应的仿真模型,通过对有功、无功阶跃突变工况的仿真分析,验证了该方案的有效性和可行性,为风电场并网电压源高压直流输电系统提供了一种可行的控制方案。
Bibliography:According to the grid connected voltage source DC transmission system in wind farm, the discrete mathe- matical model VSC-HVDC system in reference frame is derived. A novel direct power control strategy in the voltage sourced converter is proposed based on instantaneous power theory and space vector pulse width modulation in the pa- per. Constant active and reactive power controller is used in the wind farm side, and a constant DC voltage and con- stant reactive power controller is used in the grid-side. A case of two-terminal VSC-HVDC system for grid connection of wind farms is developed in MATLAB/Simulink. The simulation results show the effectiveness and feasibility of the proposed control methods which provide a viable control solution in voltage sourced converter based high voltage direct current systems for offshore wind farm.
23-1202/TH
wind farms, VSC-HVDC, instantaneous power
Huang Zheng1 , Wu Jie2 （1. School of Electrical and Information Engineering, Guizhott Institute of Technology, Guiyang 550003, Ch
ISSN:1001-1390