摘要
直流系统绝缘监测装置对电力系统的安全稳定运行起着十分重要的作用。通过对直流系统绝缘监测原理优缺点的分析,首先提出一种平衡桥电阻法与开关电阻法相结合对母线监测的硬件设计方案,然后针对直流系统绝缘监测装置在工作时需要处理较大数据,采用STM32F103VET6作为主控制器,移植μC/OS-II操作系统提高装置的实时响应能力,并详细介绍基于μC/OS-II操作系统软件任务的工作流程。通过制作样机进行相关实验,经验证该设计可以切实有效的解决系统处理实时性不高等问题,并在多种接地状态都具有较高的测量精度。
The DC system insulation monitoring device is an important guarantee for safe and reliable operation of the electricity systems. Based on the analysis of advantages and disadvantages of the DC system insulation monitoring principle,a new method is put forward, which is combined balanced bridge and switching resistance for bus voltage detection. According that large data needs to be handled by DC system insulation monitoring device,STM32F103VET6 is used as the main controller,besidesμC/OS--II operating system is used to improve the real time response ability of the device. Then software task workflows based on μC/OS-1I operating system are described in detail. The experiment proves that the design of the device can effectively solve those problems and have a higher accuracy in a variety of grounding conditions.
出处
《电子测量技术》
2013年第12期4-7,19,共5页
Electronic Measurement Technology
