Predictive Current Method Control for Novel HVDC under Three Phase Voltage Unbalanced Condition

SUN Xu; ZHU Yi-ying

doi:10.13296/j.1001-1609.hva.2010.11.020

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Predictive Current Method Control for Novel HVDC under Three Phase Voltage Unbalanced Condition

更新时间：2025-04-26

- Predictive Current Method Control for Novel HVDC under Three Phase Voltage Unbalanced Condition
- High VoltageApparatus Vol. 46, Issue 11, Pages: 35-37+42(2010)
- 作者机构：
  
  中国电力科学研究院系统所
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.11.020
  CLC： TM721.1
- Published：2010
- 稿件说明：
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[1]孙栩,朱艺颖.预测电流法控制三相电压不平衡下VSC-HVDC[J].高压电器,2010,46(11):35-37+42.

SUN Xu, ZHU Yi-ying. Predictive Current Method Control for Novel HVDC under Three Phase Voltage Unbalanced Condition[J]. High voltageapparatus, 2010, 46(11): 35-37+42.
[1]孙栩,朱艺颖.预测电流法控制三相电压不平衡下VSC-HVDC[J].高压电器,2010,46(11):35-37+42. DOI： 10.13296/j.1001-1609.hva.2010.11.020.

SUN Xu, ZHU Yi-ying. Predictive Current Method Control for Novel HVDC under Three Phase Voltage Unbalanced Condition[J]. High voltageapparatus, 2010, 46(11): 35-37+42. DOI： 10.13296/j.1001-1609.hva.2010.11.020.

摘要

VSC-HVDC由于连接模式非常灵活和多样

特别是有可能接入低压配电网

其将面临诸如三相不平衡等问题

而三相不平衡问题将影响整个系统的正常运行。双电流闭环控制法虽然可以解决此问题

但是比较复杂。笔者提出利用预测电流法控制VSC-HVDC的理论方法。最终的仿真结果表明

预测电流法能够保证VSC-HVDC在三相电压不平衡情况下仍然保持良好的性能。

Abstract

Because the connecting modes are very flexible and diversified

VSC-HVDC will face the problems such as three-phase unbalanced condition that will affect the normal operation of the whole system

especially it connects to the low voltage dispatched grids.Dual current closed loop control method can solve the problem

but it too complicated.So the predictive current method was presented in this paper to solve the problem eventually.This method can control the VSC-HVDC system simply and achieve perfect effect at the same time.The final simulation results show excellent performance of the proposed control strategy for the VSC-HVDC under unbalanced condition.

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