撬棒保护与电网交直流控制协调的风电机组脱网抑制方法

HOU Yuqiang

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撬棒保护与电网交直流控制协调的风电机组脱网抑制方法

更新时间：2025-08-13

- 撬棒保护与电网交直流控制协调的风电机组脱网抑制方法
- Automation of Electric Power Systems Vol. 37, Issue 23, Pages: 15-19(2013)
- 作者机构：
  
  南瑞集团公司国网电力科学研究院,江苏省,南京市,211106
- 作者简介：
- 基金信息：
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- Published：2013
- 稿件说明：
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HOU Yuqiang. [J]. Automation of electric power systems, 2013, 37(23): 15-19.
DOI：

HOU Yuqiang. [J]. Automation of electric power systems, 2013, 37(23): 15-19. DOI：

摘要

多次发生的大规模风电机组相继脱网事故严重影响集群风电并网消纳和电网安全。撬棒保护电路是目前在风电场中广泛运用的一种低电压穿越方式，但其大范围投入可能造成风电场从电网吸收过多无功功率而导致电网暂态电压稳定恶化。文中提出一种综合风电机组撬棒保护、直流系统功率调制和交流系统紧急电压控制来抑制风电机组相继脱网的方法，其核心是利用撬棒保护提高风电机组低电压穿越能力，降低风电机组在故障期间的低压脱网代价;通过风电场近区大容量直流的功率快速调制并协同交流侧紧急电压调控手段，改善风电送出通道的潮流分布，以提高故障后电网暂态电压稳定性。对实际电网的时域仿真结果验证了该方法的有效性。

Abstract

The rapid development of wind farms integrated into power systems is severely impacted by the frequently occurring accidents of large-scale wind turbine generators cascading trip-off.Despite the fact that the Crowbar protection circuit is a commonly used method of improving the low voltage ride-through（LVRT）ability of the doubly-fed induction generators，worsening of the district grid voltage stability will result from large-scale Crowbar switching application.This paper presents a new method of suppressing wind turbine generators cascading trip-off based on Crowbar protection for reducing the cost of wind turbine generators trip-off during low voltage stage，and coordinated control of high-voltage direct-current（HVDC）modulation and AC emergency voltage control.The remarkable effect of this method is verified by time domain simulation results of a real power system.

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