电器与能效管理技术 ›› 2023, Vol. 0 ›› Issue (2): 63-67.doi: 10.16628/j.cnki.2095-8188.2023.02.012

• 电能质量 • 上一篇    下一篇

一种兼顾速度和抗干扰能力的电压暂降检测方法

黄烈江1, 陈思超1, 沈狄龙1, 潘圆君1, 梁一桥2, 张驰3, 金磊3   

  1. 1.杭州欣美成套电器制造有限公司, 浙江 杭州 311200
    2.浙江大学, 浙江 杭州 310058
    3.浙江晟泰电气有限公司, 浙江 杭州 311121
  • 收稿日期:2022-10-25 出版日期:2023-02-28 发布日期:2023-03-21
  • 作者简介:黄烈江(1975—),男,高级工程师,主要从事电力系统研究。|陈思超(1985—),男,高级工程师,主要从事电力成套设备技术研发。|沈狄龙(1976—),男,高级工程师,主要从事电力成套设备研发设计。

Voltage Sag Detection Method Considering both Speed and Anti-Interference Ability

HUANG Liejiang1, CHEN Sichao1, SHEN Dilong1, PAN Yuanjun1, LIANG Yiqiao2, ZHANG Chi3, JIN Lei3   

  1. 1. Hangzhou Xinmei Complete Electrical Appliance Manufacturing Co.,Ltd., Hangzhou 311200, China
    2. Zhejiang University, Hangzhou 310058, China
    3. Zhejiang Shengtai Electric Co.,Ltd., Hangzhou 311121, China
  • Received:2022-10-25 Online:2023-02-28 Published:2023-03-21

摘要:

在对比各种电压暂降检测方法的基础上,提出了一种兼顾速度和抗干扰能力的电压暂降检测方法。采用滑动窗计算单相电压的1/4周期有效值,同时根据数字锁相环锁定的相位,实时计算单相电压的有效值。仿真和实际测试表明,所提方法物理意义明确、计算简单、实时性较好、抗干扰能力较强,兼顾了动态电压调节器对速度和抗干扰能力的要求,可较好地应用于仅需电压幅值暂降检测的工程。

关键词: 电压暂降, 1/4周期有效值算法, 数字锁相环, 动态电压调节器

Abstract:

Based on the comparison of various voltage sag detection methods,the voltage sag detection method that takes into account the speed and anti-interference ability is proposed.The sliding window is used to calculate the effective value of 1/4 cycle of single-phase voltage.Simultaneously the effective value of single-phase voltage is calculated in real time according to the phase locked out by digital phase-locked loop.The simulation and actual test show that the proposed method has clear physical meaning,simple calculation,good real-time performance and strong anti-interference ability.The requirements of dynamic voltage regulator for speed and anti-interference ability are taken into account.It can be well applied to engineering practice where only voltage amplitude sag detection is required.

Key words: voltage sag, 1/4 cycle effective value algorithm, digital phase-locked loop, dynamic voltage regulator(DVR)

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