Research on Electrical Characteristics of Low Voltage Ride-through for Direct Drive Fans

ZHAO Shuqiang; YU Jia; WANG Hui; LI Yaming; ZHANG Hongwei; LI Hang

doi:10.13296/j.1001-1609.hva.2026.02.015

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Research on Electrical Characteristics of Low Voltage Ride-through for Direct Drive Fans

Research & Analysis | 更新时间：2026-03-16

- Research on Electrical Characteristics of Low Voltage Ride-through for Direct Drive Fans
- High Voltage Apparatus Vol. 62, Issue 2, Pages: 119-127(2026)
- 作者机构：
  
  华北电力大学河北省分布式储能与微网重点实验室，河北保定 071003
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.02.015
  CLC：
- Received：11 July 2025，
  
  Revised：2025-10-01，
  
  Published：16 February 2026
- 稿件说明：
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ZHAO Shuqiang, YU Jia, WANG Hui, et al. Research on Electrical Characteristics of Low Voltage Ride-through for Direct Drive Fans[J]. High Voltage Apparatus, 2026, 62(2): 119-127.
DOI：

ZHAO Shuqiang, YU Jia, WANG Hui, et al. Research on Electrical Characteristics of Low Voltage Ride-through for Direct Drive Fans[J]. High Voltage Apparatus, 2026, 62(2): 119-127. DOI： 10.13296/j.1001-1609.hva.2026.02.015.

摘要

随着风电渗透率的不断提高，风机的低电压穿越行为影响着电网的安全稳定运行，保证发生故障时风机不切机具有重要的现实意义。建立直驱永磁风机并网数学模型，推导直驱风机低压穿越过程中电压、电流及功率等相关电气量的解析表达式并提出一种新的无功补偿方案，该方案增加了发出无功，有利于系统电压的恢复，最后运用MATLAB仿真验证了理论研究的正确性以及无功补偿新方案的有效性。

Abstract

With the continuous increase of wind power penetration

the low voltage ride-through behavior of the wind fan affects the safe and stable operation of power grid

making it of practical significance to ensure that the fan remains connected during faults without tripping. The grid-connected mathematical model of direct drive permanent magnet fan is set up

and the analytical expressions of voltage

current

power and other related electrical quantities in the low-voltage ride-through process of direct drive fan are derived. A new reactive power compensation scheme is proposed

which increases the reactive power generation and is beneficial to the recovery of system voltage. Finally

MATLAB simulation is used to verify the correctness of theoretical research and effectiveness of the new reactive power compensation scheme.

关键词

Keywords

references

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