| 引用本文: | 邱 进,冯 宇,汪 洋,等.特高压直流电流测量装置阶跃响应特性校验系统研究[J].电力系统保护与控制,2021,49(1):141-147. |
| QIU Jin,FENG Yu,WANG Yang,et al.Study on a step response characteristic calibration system of a UHVDC current measurement device[J].Power System Protection and Control,2021,49(1):141-147 |
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| 摘要: |
| 分析了特高压直流测量装置阶跃特性现场试验要求，开展阶跃响应特性现场试验技术研究，提出了基于BUCK电路的直流电流测量装置阶跃响应试验技术。研制了直流电流测量装置阶跃响应试验用快速上升长脉宽大电流源。完成了特高压直流电流测量装置阶跃响应验证试验。试验结果表明，所提出的直流电流测量阶跃特性校验系统最大输出3 000 A时，阶跃方波上升时间7 μs，持续时间10 ms，过冲幅值小于1%，其性能满足特高压直流电流测量装置的检测校验要求。 |
| 关键词: 特高压直流工程 直流电流测量装备 阶跃特性 保护特性 阶跃响应 |
| DOI：DOI: 10.19783/j.cnki.pspc.200224 |
| 分类号: |
| 基金项目:国家电网有限公司总部科技项目资助(GYW 17201800033)“直流工程用直流测量装置试验方法研究和装置研制” |
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| Study on a step response characteristic calibration system of a UHVDC current measurement device |
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QIU Jin, FENG Yu, WANG Yang, WU Shipu
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(1. China Electric Power Research Institute Co., Ltd., Wuhan 430074, China;
2. State Grid Hubei Electric Power Co., Ltd., Wuhan 430072, China)
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| Abstract: |
| Given the field test requirements of step characteristics of a UHVDC measuring device, the field test technology of step response characteristics is studied. A step response test technology of a DC current measuring device based on the BUCK circuit is put forward. A rapidly rising long-pulse large-current source for a step response test of DC current measuring device is developed. The step response test of a UHVDC current measuring devices is completed. The test results show that when the maximum output of the step characteristic calibration system of DC current measurement is 3 000 A, the step square wave rise time is 7 μs, the duration is 10 ms, the overshoot amplitude is less than 1%, and its performance meets the requirements of the detection and verification of a UHVDC current measuring device.
This work is supported by Science and Technology of the Headquarters of State Grid Corporation of China (No. GYW17201800033) “DC Measurement Device Test Method Research and Device Development used in DC Project”. |
| Key words: HVDC DC current measurement device step characteristics protection characteristics step response |
