电压暂降输入模态下的开关电源耐受特性分析

汪颖; 周杨; 徐琳

汪颖,周杨,徐琳.电压暂降输入模态下的开关电源耐受特性分析[J].电测与仪表,2020,57(19):146-152.
Wang Ying,Zhou Yang,Xu Lin.Analysis of SMPS tolerance to voltage sag at different input voltage sag modal[J].Electrical Measurement & Instrumentation,2020,57(19):146-152.

电压暂降输入模态下的开关电源耐受特性分析

Analysis of SMPS tolerance to voltage sag at different input voltage sag modal

DOI：10.19753/j.issn1001-1390.2020.19.023

中文关键词: 开关电源电压暂降耐受能力测试方法模态

英文关键词:switch mode power supply, voltage sag, tolerance, test method, modal

基金项目:国家自然科学基金项目（ 51807126）

作者中文名	作者英文名	单位
汪颖	Wang Ying	四川大学电气信息学院
周杨	Zhou Yang	四川大学电气信息学院
徐琳	Xu Lin	四川电力科学研究院

摘要点击次数: 1428

中文摘要:

开关电源因集成度高、质量轻等优点被广泛应用于可编程逻辑控制器、家用电器等领域,成为主流的稳压电源产品。电压暂降会影响开关电源输出端电压,影响其供电设备的工作状态。文章采用测试与模态分析相结合的方法研究开关电源受电压暂降的影响特性。首先,搭建测试平台,并将测试所得数据绘制成电压耐受曲线；然后,结合电压耐受曲线参照控制变量的思想,将幅值-持续时间平面划分为五种不同的输入模态；最后,分析不同模态下开关电源输出端电压波形特性。揭示输入端电压暂降信号、开关电源输出端电压波形及开关电源工作特性之间的响应机理。

英文摘要:

Switch mode power supplies(SMPS) are widely used in programmable logic controllers, household appliances, etc. due to their high integration and light weight, and becomeing the most popular power supply products. The voltage sag will affect the output voltage of the SMPS and the working state of its power supply equipment. The paper study the influence of SMPS on voltage sag by measureing and analysising modal. Firstly, A large amount of dates obtained by the test were used to draw the voltage tolerance curve(VTC) of SMPS; and then, divideing the magnitude-duration flat into five different modals combined with VTC and referenced to control variables; finaly, Qualitative analysis of voltage waveform at the output of SMPS under different modals. Revealing response mechanism between the voltage sag at the input terminal, the output voltage waveform and the operating characteristics .

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