提升无源工业负荷故障穿越能力的VSC-HVDC控制策略

BIAN Zhipeng

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提升无源工业负荷故障穿越能力的VSC-HVDC控制策略

更新时间：2025-08-13

- 提升无源工业负荷故障穿越能力的VSC-HVDC控制策略
- Automation of Electric Power Systems Vol. 40, Issue 7, Pages: 61-67(2016)
- 作者机构：
  
  浙江大学电气工程学院,浙江省,杭州市,310027
- 作者简介：
- 基金信息：
- DOI：
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- Published：2016
- 稿件说明：
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BIAN Zhipeng. [J]. Automation of electric power systems, 2016, 40(7): 61-67.
DOI：

BIAN Zhipeng. [J]. Automation of electric power systems, 2016, 40(7): 61-67. DOI：

摘要

由于无源工业负荷对于电压变化很敏感，因此保证电压稳定是提升其故障穿越能力的关键，首先分析了在故障下，影响无源系统交流电压的主要因素，并在此基础上，提出了一种改进的电压源换流器(VSC)控制策略。这种控制策略由两部分组成:(1)改进了VSC外环控制器的限幅策略；(2)提出了一种基于受端交流电压测量的频率滞回控制。通过PSCAD/EMTDC仿真进行验证分析，结果表明该控制方法能有效地帮助无源工业负荷穿越故障，实现稳定运行。

Abstract

Since industrial installations are much more sensitive to voltage drops than frequency deviations

it is essential to guarantee the stability of voltage during severe faults. First

the main factor that affects the AC voltage in the passive system is analyzed. According to the analytical results

the control strategy is proposed to increase the AC voltage in transient conditions. The strategy consists of two parts

i. e.

a modified current limit tactic and a frequency hysteresis control. The simulation tests uring metallic single-phase and three-phase faults are done via PSCAD/EMTDC to verify the validity of the control methods.

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