继电保护测试仪检测装置的研发

Research and Development of the Detection Device for Tester of Relay Protection

针对继电保护测试仪检测要求准确度高、宽频及多功能等难题,研制开发了采用DSP+AVR+嵌入式工控机架构的继电保护测试仪检测装置。DSP负责信号的采样、处理和计算等,嵌入式工控机负责数据处理、显示和键盘处理。试验结果表明,该装置可对继电保护测试仪进行总谐波畸变率、响应速度、同步性、带负载能力、动作时间等技术参数的功能检测,满足精度要求,实现了继电保护测试仪的检测多功能、宽范围和高准确度上的统一。

To solve the difficulties to meet the requirements for detecting relay protection tester,such as high accuracy,wide frequency range,and multiple functions,the detection device that is using DSP＋AVR＋embedded industrial PC framework is researched and developed.Signal sampling,signal processing and calculations are achieved by DSP;while data processing,display and keyboard processing are taken care with embedded industrial PC.The result of tests indicates that the technical parameters of total harmonic distortion（THD）,response speed,synchronizing performance,loading capability and action time can be measured by this device with the accuracy required.The target of the entity of multiple functions,wide range and high accuracy is accomplished.