| 引用本文: | 汪玉,汤汉松,高博,等.基于数字物理混合仿真的电子式电压互感器暂态特性及其测试技术研究[J].电力系统保护与控制,2019,47(6):125-131. |
| WANG Yu,TANG Hansong,GAO Bo,et al.Research on transient characteristics and test technology of electronic voltage transformer based on digital-physical hybrid simulation[J].Power System Protection and Control,2019,47(6):125-131 |
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| 摘要: |
| 介绍了阻容分压电子式电压互感器的原理架构，分析了阻容分压电子式互感器经微分积分后的暂态传变特性。从继电保护应用的角度关注了电子式电压互感器的暂态传变特性对快速距离保护的影响。提出了一种基于数字物理混合仿真的电子式电压互感器暂态测试技术方案。采用数字仿真输出小电压信号再利用功率放大器将其放大，再搭建电子式电压互感器阻容分压的物理仿真平台，建立完整的测试系统。利用突变量检测确定初始时刻，同步采集模拟量原始电压信号与试品数字信号，进行暂态过程电子式电压互感器的暂态误差计算。通过开发的测试系统在实验室的应用，以验证测试技术方案的可行性。 |
| 关键词: 电子式电压互感器 暂态传变特性 数字物理混合仿真 阻容分压 突变量检测 暂态误差 |
| DOI：10.7667/PSPC180454 |
| 分类号: |
| 基金项目:北京自然科学基金项目资助(1183068) |
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| Research on transient characteristics and test technology of electronic voltage transformer based on digital-physical hybrid simulation |
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WANG Yu1,TANG Hansong2,GAO Bo1,ZHENG Guoqiang1,DING Jinjin1
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(1. State Grid Anhui Electric Power Research Institute, Hefei 230061, China;2. Jiangsu Lingchuang Electric Automation Co., Ltd., Zhenjiang 212009, China)
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| Abstract: |
| According to the principle structure of the resistor-capacitor voltage-divided electronic voltage transformer, the transient transfer characteristics of the resistor-capacitor voltage-divided electronic transformer after differential integration are analyzed. With relay protection application, the influence of transient voltage transfer characteristics of electronic voltage transformer on fast distance protection is studied. A digital voltage transformer transient test technology scheme based on digital physics hybrid simulation is proposed. The small voltage signal is digitally simulated and amplified by a power amplifier. The physical simulation platform of the electronic voltage transformer resistance-capacitor voltage divider is built and a complete test system is established. The initial time is determined by the mutation detection, and the analog raw voltage signal and the digital signal of the sample are synchronously acquired, then, the transient error calculation of the electronic voltage transformer in the transient process is performed. The feasibility of the test technology solution is verified by the application of the developed test system in the laboratory. This work is supported by Beijing Municipal Natural Science Foundation (No. 1183068). |
| Key words: electronic voltage transformer transient transmission characteristics digital-physics hybrid simulation resistive-capacitive divider fault component test transient error |
