适用于智能电网电能质量检测的双积分型电子式电压互感器
发布时间：2018-09-11 09:24
【摘要】：现有的电压互感器难以满足智能电网对电能质量宽频域、高精度检测的要求,文中提出一种基于双积分器的电子式电压互感器(EVT)实现方案,利用主积分器和辅助积分器配合工作,使EVT同时兼顾宽频带特性和良好的暂态响应性能。阐述了双积分型EVT的工作原理,分析了主积分器和辅助积分器的频率响应特性及暂态特性,并进行了双积分型EVT的谐波及暂态扰动检测仿真分析和样机试验验证。结果表明双积分型EVT可满足60次以下谐波电压高精度检测的要求,对暂态扰动信号具有良好的传变性能,符合智能电网电能质量检测的需要。
[Abstract]:The existing voltage transformer is difficult to meet the demand of smart grid for wide frequency domain and high precision detection of power quality. In this paper, a (EVT) implementation scheme of electronic voltage transformer based on dual integrator is proposed. The main integrator and the auxiliary integrator are used to work together to make the EVT take into account the wide band characteristic and the good transient response performance at the same time. This paper describes the working principle of dual integral EVT, analyzes the frequency response characteristics and transient characteristics of main integrator and auxiliary integrator, and carries out the harmonic and transient disturbance detection simulation analysis and prototype test of dual integral type EVT. The results show that the dual-integral EVT can meet the requirements of high-precision detection of the harmonic voltage below 60 times, and has good transmission performance for transient disturbance signals, and meets the needs of smart grid power quality detection.
【作者单位】： 湖南大学电气与信息工程学院;
【基金】：湖南省科技计划资助项目(2015WK3002)~~
【分类号】：TM451
[Abstract]:The existing voltage transformer is difficult to meet the demand of smart grid for wide frequency domain and high precision detection of power quality. In this paper, a (EVT) implementation scheme of electronic voltage transformer based on dual integrator is proposed. The main integrator and the auxiliary integrator are used to work together to make the EVT take into account the wide band characteristic and the good transient response performance at the same time. This paper describes the working principle of dual integral EVT, analyzes the frequency response characteristics and transient characteristics of main integrator and auxiliary integrator, and carries out the harmonic and transient disturbance detection simulation analysis and prototype test of dual integral type EVT. The results show that the dual-integral EVT can meet the requirements of high-precision detection of the harmonic voltage below 60 times, and has good transmission performance for transient disturbance signals, and meets the needs of smart grid power quality detection.
【作者单位】： 湖南大学电气与信息工程学院;
【基金】：湖南省科技计划资助项目(2015WK3002)~~
【分类号】：TM451
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