智能变电站智能终端自动测试仪设计

电力行业缺少针对智能终端的专业测试设备,现有测试系统庞杂、配置繁琐、接换线多、数据处理繁杂、误差点多,制约了测试机构的检测效率和质量。为解决现有测试系统的弊端,实现智能终端的闭环自动测试、简化测试系统、提高测试能力和效率,研制一种智能终端自动测试仪。通过接口及配置规范化,在开始测试前一次性完成所有接线和配置,实现测试中零接换线。通过回路自动切换技术,对测试回路进行预设计,在测试中根据不同项目要求进行回路自动切换和构建,实现自动测试和零换线。通过检测过程透明显示技术,实现测试结果的实时处理和显示,方便结果分析和判定。通过试验验证和工程应用,证明智能终端自动测试仪的精度和抗干扰能力满足标准要求,自动测试能力和效率相对传统方法明显提高,满足应用需求。

Automatic test equipment design of intelligent terminals in a smart substation

Professional equipment is lacking when it comes to intelligent terminal testing in the power industry. The existing test system has complex structure, complicated configuration, heavy wiring and changing operation, complex data processing and multiple error sources. All of these restricts testing efficiency and quality. To overcome the disadvantages of the existing test system, an intelligent terminal automatic tester is developed. This can realize the closed-loop automatic test of an intelligent terminal, simplify the test system, and improve testing ability and efficiency. Through the standardization of interface and configuration, all wiring and configuration are completed before the start of the test, so as to realize zero line connection and change operation in the test. Using automatic circuit switching technology, the test circuit is pre-designed and the automatic circuit switching and construction are carried out according to the requirements of different projects in the test, so as to realize the automatic test and zero line change operation. Through transparent display technology of the test process, the real-time processing and display of the test results are realized. This is convenient for the analysis and judgment of the results. By test verification and engineering application, it is shown that the accuracy and anti-interference ability of the intelligent terminal automatic tester meet the standard requirements. The automatic test ability and efficiency are significantly improved compared with traditional methods, meeting the application requirements. This work is supported by the National Natural Science Foundation of China (No. U1804252).