基于C8051F021的低压馈电系统电量检测技术研究

发布时间：2018-01-20 03:48

本文关键词： 低压馈电系统 C8051F021 电量检测交流采样直流采样　出处：《西安电子科技大学》2012年硕士论文　论文类型：学位论文

【摘要】：低压馈电系统是对工业低压范围内的电气设备或特定电路供电的环节，通常通过将馈电环节中的信号转换成微处理器可以处理的数字量，，微处理器根据电量的检测和计算结果，确定保护的整定值和动作特性，经过比较判断，决定保护装置是否动作，再配合继电保护装置来完成对各种电器设备的保护功能。馈电系统中电量检测的精确性和可靠性直接影响了保护装置的保护性能，而高精度的检测技术则是维系电力系统安全、稳定运行的重要保障。本文主要研究低压馈电系统中电量的检测技术。本设计以C8051F021单片机为核心，深入研究了低压馈电系统中高精度的电量的检测技术，主要包括数据采集的选择和实现、直流采样和交流采样输入通道硬件设计和误差分析、单片机系统的整体搭建以及抗干扰设计。
[Abstract]:The low voltage feed system is the link which supplies the electric equipment or the specific circuit in the industrial low voltage range, usually by converting the signal in the feed link to the digital quantity which can be processed by the microprocessor. The microprocessor determines the setting value and the action characteristics of the protection according to the results of the detection and calculation of the electric quantity. After comparing and judging, the microprocessor determines whether the protection device is active or not. And then cooperate with the relay protection device to complete the protection function of various electrical equipment. The accuracy and reliability of electric quantity detection in feed system have a direct impact on the protection performance of the protective device, while the high precision detection technology is to maintain the power system safety. This paper mainly studies the detection technology of electric quantity in low-voltage feed system. This design takes C8051F021 single chip microcomputer as the core, has deeply studied the high precision electricity quantity detection technology in the low voltage feed system, mainly includes the data collection choice and the realization. The hardware design and error analysis of DC sampling and AC sampling input channel, the whole construction of single chip microcomputer system and the design of anti-interference.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TM930;TP368.1

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