基于Matlab的绝缘材料电气性能测试系统设计

A Matlab Based Electrical Property Testing System For Insulating Materials

摘要:

针对传统的绝缘性能测试仪存在功能单一和无法兼容频域介电响应等新方法的问题，通过选用常见设备，设计了一套基于Matlab绝缘材料电气性能测试系统。该系统利用前置滤波器消除了频率响应函数对系统输出的不利影响，使系统不仅拥有常规的直流跟工频检测功能，也具备在50Hz-1kHz频率范围内进行电压试验的能力，测试时的最高电压能够达到10kV。通过测量试验中流过介质的漏电流，该系统适用于对被测物的绝缘性能进行综合的评估。试验结果表明该系统达到了设计指标，并且能够满足日常工作中的测试需要

Abstract:

A Matlab based electrical property testing system for insulating materials has been developed by selecting common equipment found in the lab in order to tackle the questions found in traditional insulation testers whose function is simple and is incompatibility with new methods such as frequency domain dielectric response. The negative effect of frequency response function bring by the system has been removed by the pre-filter in the signal generation process. Therefore, the system has not only the ability to run the normal DC and fundamental frequency test, but also to carry out the experiment under frequencies range from 50Hz to 10 kHz. The maximum testing voltage for this system is 10kV. Together with the measurement of the leakage current, the system is able to evaluate the insulating property of the material under test in a comprehensive way. The test results show that the system has reached the design target and can meet the testing needs of daily work, and achieve the purpose of developing the system.