基于电压源变换器的高压直流输电电磁暂态模型及控制策略

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI:10.1109/DRPT.2008.4523742

Cheng Huang-fu, G. Tang, J. Ruan, Yan Wang

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引用次数: 3

摘要

本文提出了基于电压源变换器的高压直流输电的电磁暂态模型和控制策略。建立了同步d-q坐标系下VSC交流侧的电磁暂态模型;基于瞬时功率平衡原理推导了直流侧动态，并考虑了三相串联电感器的瞬时功率吸收。为了实现有功功率和无功功率的快速分离控制，设计了一种基于前馈补偿的解耦控制器。采用PSCAD/EMTDC实现了VSC-HVDC供电无源网络和连接有源网络的仿真试验。仿真结果验证了数学模型的有效性和控制策略的可行性。

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An electromagnetic transient model and control strategy for the voltage source converter based HVDC transmission

This paper proposes an electromagnetic transient model and control strategy for the voltage source converter (VSC) based HVDC transmission. The electromagnetic transient model of the VSC AC-side in the synchronous d-q reference frame has been built; the DC-side dynamics are formulated based on the principle of instantaneous power balance, the instantaneous power absorbed by three-phase series inductors is also considered. For the purpose of control active power and reactive power separately and faster, a decoupled controller based on feed forward compensation method has been designed. The simulation tests realized by PSCAD/EMTDC that VSC-HVDC supplying passive network and connect active network have been adopted. The simulation results verify the validity of the mathematical model and the feasibility of the control strategies.

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2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies

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