变频调速器电压暂降耐受特性试验及量化方法研究I：机理分析与试验方法

doi:10.19595/j.cnki.1000-6753.tces.L80832

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摘要变频调速器（ASD）是电压暂降敏感负荷之一,其暂降耐受能力受到不同因素的影响。本文利用直流侧动态方程和异步电机动态方程,分析ASD电压暂降耐受特性受ASD自身（保护、控制方式）、负荷侧（负荷特性）以及源侧（暂降类型、电压暂降前/后电压幅值、暂降形状）因素的影响机理;在机理分析和现有标准测试项目与试验方案的基础上,提出一种基于源侧暂降特征、设备敏感机理和负荷特性的分区段全参数ASD电压暂降耐受特性试验方法,并针对ASD耐受特性曲线最左侧与时间轴垂直、水平部分向左下倾斜的特点,提出一种能够在一定程度上提高试验效率的测试点选择方法——改进封闭法。为量化变频器的电压暂降耐受能力提供基础,同时为标准制定、厂家设备制造和用户电能质量治理提供参考。

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	陶顺
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关键词 ：变频调速器, 电压暂降, 机理分析, 全参数, 试验方法

Abstract：Adjustable speed drivers (ASDs) are sensitive to voltage sags, and the tolerance to voltage sag is easily affected by different factors. In this paper, with the dynamic equations of DC circuit and asynchronous motor, mechanism analysis of ASDs’ factors (protection, control methods), load factors (load characteristics) and voltage sag characteristics (voltage sag types, pre/post-voltage sag magnitude, the shape of voltage sag) on ASD was carried out. On the basis of the analysis and existing standard, a voltage sag tolerance test method of ASD for full parameters was proposed. In view of the characteristics of the ASD tolerance curve, a selection method of test points that can improve the test efficiency to a certain extent was proposed, i.e. Improved Box-in method. It can provide a basis for quantifying the tolerance ability of ASDs to voltage sags and provide reference for standard setting, equipment manufacturing and power quality control.

Key words： Adjustable speed driver voltage sag mechanism analysis full parameters test method

收稿日期: 2018-01-22 出版日期: 2019-03-29

PACS:	TM761+.12
	TK243.6

基金资助:国家自然科学基金资助项目（51277069）

作者简介: 唐松浩男,1994年生,硕士研究生,研究方向为电压暂降分析与治理、超高次谐波。E-mail:tangsonghao626@163.com

引用本文:

陶顺, 唐松浩, 陈聪, 肖湘宁. 变频调速器电压暂降耐受特性试验及量化方法研究I：机理分析与试验方法[J]. 电工技术学报, 2019, 34(6): 1273-1281. Tao Shun, Tang Songhao, Chen Cong, Xiao Xiangning. Experimental Research on Adjustable Speed Drivers Tolerance to Voltage Sags and Quantitative Method Part I: Mechanism Analysis and Test Method. Transactions of China Electrotechnical Society, 2019, 34(6): 1273-1281.

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通信作者:陶顺女,1972年生,副教授,研究方向为智能配电网与电能质量.E-mail: tao_shun@sina.com