摘要
绝缘电阻和耐压强度是评价电力设备绝缘状态的重要指标;通过结合Cortex-M4系列的STM32F4xx设计了绝缘耐压一体化测量系统;通过上位机程序实现不同通道的切换,从而实现不同测量模式的切换,进而实现被测对象绝缘电阻和耐压强度的测量;通过RS232串口将测量得到的结果上传到上位机,分析处理得到的数据,从而能准确的判断设备的绝缘状态;给出了绝缘耐压测量的基本原理、测量公式以及软硬件的实现方法,并通过硬件测试、软件测试以及系统整体调试,验证了系统运行的稳定性和可靠性;对实现测量的自动化具有重要的意义,同时对绝缘耐压的研究具有一定的价值。
Insulation resistance and compressive strength are important indexes to evaluate insulation state of power equipment.Combined with the Cortex-M4 series of STM32F4xx,an integrated measurement system is designed.Switch between different channels through the host computer program,so as to realize the measurement model,and then realize the measurement of insulation resistance and compressive strength,and the measurement results will be uploaded to the host computer through the RS232 serial port,for data analysis and processing,which can accurately judge the insulation status of the equipment.The basic principle of measurement,the formula of measurement and the realization of hardware and software are given.And through the hardware test,software testing and system debugging,the stability and reliability of the system is verified.It is of great value for the application and popularization of the digital meter.
作者
张淑杰
程武山
Zhang Shujie;Cheng Wushan(College of Mechanical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《计算机测量与控制》
2018年第3期43-45,49,共4页
Computer Measurement &Control
