| 引用本文: | 赵 锦,陈光华,刘德森,等.电力系统数字信号检测校准装置的研究与实现[J].电力系统保护与控制,2023,51(17):140-148.[点击复制] |
| ZHAO Jin,CHEN Guanghua,LIU Desen,et al.Study and development of a testing and calibrating device for a digital signal in a power system[J].Power System Protection and Control,2023,51(17):140-148[点击复制] |
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| 摘要: |
| 随着智能变电站的大规模建设推广，数字化设备及测试仪的应用越来越多，电力系统数字信号准确度的检测校准成为必需环节。目前，电力系统数字信号准确度测试方法不统一，测试系统针对性不强、便利性不足、不确定性高，影响了检测校准的效率和质量，不利于数字化设备在智能变电站的推广应用和长期质量安全。为解决这一问题，研究和实现了一种电力系统数字信号检测校准装置。从理论值、时标和算法溯源三方面，实现电力系统数字信号准确度全性能指标检测校准。试验及工程验证表明，研究成果的功能和抗干扰性满足标准要求和应用需求，提升了电力系统数字信号检测校准的效率和质量。 |
| 关键词: 数字信号 检测 校准 理论值溯源 时标溯源 算法溯源 |
| DOI：10.19783/j.cnki.pspc.221693 |
| 投稿时间：2022-10-25修订日期：2023-03-27 |
| 基金项目:国家自然科学基金项目资助(U1804252) |
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| Study and development of a testing and calibrating device for a digital signal in a power system |
| ZHAO Jin1,CHEN Guanghua2,LIU Desen3,HUANG Yan3,ZHENG Mingyou4,ZHANG Yuanying2 |
| (1. State Grid Integrated Energy Service Group Co., Ltd., Beijing 100000, China; 2. Zhuhai Ketop Testing Technology
Co., Ltd., Zhuhai 519000, China; 3. Xuchang Ketop Testing Research Institute Co., Ltd., Xuchang 461000, China;
4. Hubei Energy Group Loushui Hydropower Co., Ltd., Hefeng 445800, China) |
| Abstract: |
| With the large-scale construction and promotion of smart substations, the application of digital equipment and testers is increasing significantly. Thus the test and calibration of digital signal accuracy of a power system have become key issues. At present, the testing methods of digital signal accuracy in a power system are unprofessional, inconvenient and inaccurate. This affects the efficiency and quality of test and calibration, and is not conducive to the promotion and application of digital equipment in smart substations and long-term quality and safety. To solve this problem, a digital signal test and calibration device for a power system is researched and implemented. From the three aspects of theoretical value, time scale and algorithm traceability, the full performance index of digital signal accuracy can be tested and calibrated. Test and engineering verification show that the function and anti-interference results meet the standard and application requirements, and improve the efficiency and quality of digital signal test and calibration. |
| Key words: digital signal test calibrate theoretical value traceability time scale traceability algorithm traceability |
