小功率交流电动机综合保护器设计毕业论文分析报告.doc
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我所呈交的本科毕业设计论文是本人在导师指导下进行的研究工作及取得的研究成果。尽我所知,除了文中特别加以标注和致谢中所罗列的内容以外,论文中不包含其他人已经发表或撰写过的研究成果。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示了谢意。本人完全意识到本声明的法律结果由本人承担。 毕业设计(论文)任务书
设计(论文)题目:
学院: 专业: 班级:
学生: 指导教师:
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3.主要参考文献
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4.小功率交流电动机综合保护器设计
1.分析了电动机运行的基本原理、电动机故障特征以及保护原理。
2.给出了电动机保护装置的实现方案。本装置可实现以下故障保护:短路保护、堵转保护、过流保护、不平衡保护、断相保护、过压保护、欠压保护、漏电保护以及过热保护等功能。
3.以STC90C58AD单片机为核心控制器设计了电动机保护硬件单元,并配以液晶显示器等外围设备构成电动机保护系统。
4.在软件系统的设计上,根据STC90C58AD单片机的编程结构特点,采用模块化编程思想,将系统功能分解成较小的功能模块,然后用子函数和中断处理函数等实现了电动机保护功能。
最后,通过实验对电动机保护器的可靠性进行检验,实验表明,此电动机保护器的测量精度,灵敏度以及保护性能均达到了设计要求。
关键词:电动机保护;单片机;故障诊断;数据采集
0.4kV AC motor integrated protection design
Abstract
AC motor is the most widely used power equipment, in the national economy plays an important role, but its high failure rate on the industrial and agricultural production caused huge economic losses, so the analysis of traditional motor protection devices are not perfect on the basis of , developed functional, highly reliable motor protection devices have become necessary.
In recent years, with the microelectronic technology, computer technology, the rapid development of various types of microcontrollers, digital signal processors, embedded processors and other protected areas in the motor has been widely applied. This paper focuses on a microcontroller-based motor protection device of this task are commenced, the development environment for a variety of on-site AC motor measurement, monitoring, protection integrated devices. The main contents of this paper are summarized below.
1. Of the basic principles of operation of the motor, the motor characteristics and fault protection principle.
2. Gives a motor protection device implementations. The device can achieve the following fault protection: short circuit protection, stall protection, overcurrent protection, un
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