文章摘要
莫文雄,许中,马智远,等.变频调速系统的电压暂降免疫度计算及关键参数设计[J].电力系统自动化. DOI: 10.7500/AEPS20171220002.
MO Wenxiong,XU Zhong,MA Zhiyuan, et al.Voltage Dip Immunity Calculation and Parameter Designation of Adjustable Speed Drive[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20171220002.
变频调速系统的电压暂降免疫度计算及关键参数设计
Voltage Dip Immunity Calculation and Parameter Designation of Adjustable Speed Drive
DOI:10.7500/AEPS20171220002
关键词: 电能质量  电压暂降  变频调速系统  免疫度  电压容忍度曲线
KeyWords: Power quality  voltage dip  adjustable speed drive  immunity  voltage tolerance curve
上网日期:2018-08-09
基金项目:
作者单位E-mail
莫文雄 广州供电局有限公司 gzmwx@139.com 
许中 广州供电局有限公司 348867958@qq.com 
马智远 广州供电局有限公司 402989002@qq.com 
陈伟坤 华南理工大学电力学院 1533687677@qq.com 
钟庆 华南理工大学电力学院 epqzhong@scut.edu.cn 
摘要:
      为掌握变频调速系统(Adjustable Speed Drive,ASD)的电压暂降免疫度与设备参数设置的关系,本文研究了ASD的电压暂降免疫度理论计算方法和参数设计方法。首先建立了ASD电压暂降免疫度与直流欠压保护定值及直流侧电容值两个关键参数的数学表达式,从理论上计算出最严重情况下ASD的电压暂降免疫度;其次,根据数学表达式,给出了基于电压暂降免疫度要求的参数设计方法;然后,搭建了ASD电压暂降免疫度的物理测试平台和仿真模型;最后,对比了理论计算结果与实测结果和仿真结果,验证了本文提出ASD电压暂降免疫度理论计算方法和参数设计方法的正确性。所提方法能减少实际测试的工作量,提高参数设计效率,为解决电网与用户的兼容问题奠定理论基础。
Abstract:
      To understand the relationship between the voltage dip immunity and the parameter configuration of adjustable speed drive(ASD), approaches for the theoretical calculation of voltage dip immunity and parameter designation of ASD are presented. There are two key parameters are discussed here, one is the threshold of dc undervoltage protection, the other is the capacitor on dc side. Firstly, the relationship between voltage dip immunity and parameters is analyzed and the mathematical expressions are given to calculate the voltage dip immunity. Secondly, depending on the demand of voltage dip immunity, the mathematical expressions are given to help the parameter designation. Thirdly, the voltage dip immunity testing platform and simulation model are set up. Finnaly, by the comparison of the calculation results, simulation results and testing results, the effectiveness of the proposed approaches has been testified. The method proposed can reduce the hard work of the operational test and improve the effecience of the parameter designation, which can be considered as the basis of the solution for the compatility between the power suppliers and end-users.
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