[1]何 勇,裴志康,马金奎,等.用于出口压板及二次回路监测的状态检测系统设计[J].工业仪表与自动化装置,2026,(01):123-130.[doi:10.19950/j.cnki.CN61-1121/TH.2026.01.023]
　HE Yong,MA Jinkui,MAO Chenggang,et al.Design of a status detection system for exit plate and secondary circuit monitoring[J].Industrial Instrumentation & Automation,2026,(01):123-130.[doi:10.19950/j.cnki.CN61-1121/TH.2026.01.023]
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用于出口压板及二次回路监测的状态检测系统设计()

《工业仪表与自动化装置》[ISSN:1000-0682/CN:61-1121/TH]

卷:
期数:
2026年01期
页码:
123-130
栏目:
出版日期:
2026-02-15

文章信息/Info

Title:
Design of a status detection system for exit plate and secondary circuit monitoring
文章编号:
1000-0682（2026）01-0123-08
作者:
何 勇1; 裴志康1; 马金奎1; 毛成钢1; 王永林2
1.雅砻江流域水电开发有限公司，四川 成都 610000； 2.珠海优特电力科技股份有限公司，广东 珠海 519000
Author(s):
HE Yong1;  MA Jinkui1;  MAO Chenggang1; WANG Yonglin2
1.Yalong River Hydropower Development Co., Ltd., Sichuan Chengdu 610000, China;2.Zhuhai Unitech Power Technology Co., Ltd., Guangdong Zhuhai 519000, China
关键词:
出口压板; 二次回路; 双检测电路; 干扰抑制; 故障识别
Keywords:
exit Plate;  secondary circuit;  dual detection circuit;  interference suppression;  fault identification
分类号:
TM835TM933.13
DOI:
10.19950/j.cnki.CN61-1121/TH.2026.01.023
文献标志码:
A
摘要:
针对现有电力系统中存在的出口压板检测识别盲区、测量稳定性差及二次回路控制电压异常、出口继电器粘连等问题，该文提出了一种基于双检测电路和正负极判断的新型状态检测系统设计方案。该方案基于“导电挂钩-传导极板”刚性结构的旋转式电场传感器搭建双检测电路，同步检测压板上下端对地电压，并提取扇叶旋转周期信号作为电压极性参考信号，从而准确获取压板上下端电压和极性。构建了具有高电磁干扰抑制能力的电源端滤波与隔离、一体化传感与信号处理、系统侧单点接地三级防护网络，以此提升状态检测系统在复杂环境下的稳定性和测试精度。为了实现对回路电压的精确监测与故障的可靠识别，该设计还提出了数据滤波、冗余判断与故障预设判据相结合的软件策略，保障系统的稳定运行。实验结果表明，该检测系统在 -300 V~+300 V 测量范围内线性误差小于5%，压板投/退状态识别准确率达100%，二次回路故障识别准确率达 99.4%，在强电磁干扰环境下能有效识别“假投入”、回路断线、电压异常等隐患，满足电力系统二次设备远程运维的高精度监测需求。
Abstract:
Aiming at addressing issues in existing power systems such as blind spots in the detection and identification of outlet plates, poor measurement stability, abnormal control voltage in secondary circuits, and adhesion of outlet relays, this paper proposes a novel state detection system design based on a dual detection circuit and positive-negative polarity judgment. The solution constructs a dual detection circuit using a rotary electric field sensor with a rigid "conductive hook–conductive plate" structure, which synchronously detects the ground-referenced voltages at the upper and lower ends of the outlet plate and extracts the blade rotation period signal as a voltage polarity reference, thereby accurately obtaining both the magnitude and polarity of the voltages. A three-level protection network with high electromagnetic interference suppression capability was established, incorporating power-side filtering and isolation, integrated sensing and signal processing, and system-side single-point grounding, thereby enhancing the stability and measurement accuracy of the state detection system in complex environments. To achieve precise monitoring of loop voltage and reliable fault identification, the design also introduces a software strategy combining data filtering, redundant judgment, and predefined fault criteria, ensuring stable system operation. Experimental results show that the detection system achieves a linearity error of less than 5% within the measurement range of -300 V to +300 V, an outlet plate ON/OFF state identification accuracy of 100%, and a secondary circuit fault identification accuracy of 99.4%. It can effectively identify hidden risks such as "false closure," circuit breaks, and abnormal voltage under strong electromagnetic interference environments, meeting the high-precision monitoring requirements for remote operation and maintenance of secondary equipment in power systems.

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备注/Memo

备注/Memo:
收稿日期: 2025-12-02第一作者：何勇(1985—)，男，硕士，高级工程师，主要研究方向：大型流域水电站生产管理。E-mail：heyong@sdic.com.cn
更新日期/Last Update: 1900-01-01