三电源自动转换开关的设计与研究

发布时间：2017-12-31 13:32

  本文关键词：三电源自动转换开关的设计与研究　出处：《河北工业大学》2015年硕士论文　论文类型：学位论文

  更多相关文章： 自动转换开关 驱动执行机构 电压频率采集 抗干扰 PIC

【摘要】：随着国民经济的快速发展,越来越多的行业正在逐步提高对电力系统供电的可靠性要求越来越高。在这种情况下,应用于解决满足供电系统持续供电需求的电源自动转换开关开始逐渐普及。现有的技术条件下,电源自动转换开关的应用较为普遍,它可以精确检测三相电压,并对出现的电压频率异常做出准确判断。但针对医院、机场和电讯等部门采用双电源供电时一般不能达到使用要求。为了满足它们对连续供电的要求,需要采用三路电源来进行相互转换,即主电源、第一备用电源、第二备用电源。本文在对三电源自动转换开关进行深入的研究后,设计了一套驱动执行机构,它通过使用一个电机对三路电源进行单独控制,并实现三路电源之间的机械连锁,即同一时间有且仅有一路电源处于合闸状态,其它两路电源处于分闸状态。此外,在原有双电源的基础上,以PIC单片机为核心,设计了开关电源电路、电压采集电路、频率采集电路、角位移电路等主要硬件电路,并进行了抗干扰处理。最后,对三电源自动转换开关的主要程序和功能界面进行了设计。本文设计的三电源自动转换开关,具有执行机构控制原理简单的特点,并且能够准确地检测三路电源的电压和频率,具有简单人机交互的功能,可以应用于工业现场。
[Abstract]:With the rapid development of national economy, more and more industries are gradually improving the reliability of power supply system. In this case. The application of automatic switching switch to meet the demand of power supply system is becoming more and more popular. Under the existing technical conditions, the application of automatic power switch is more common, it can accurately detect the three-phase voltage. In order to satisfy the requirement of continuous power supply, the power supply of hospital, airport and telecommunication department can not meet the requirements of the double power supply. Three power sources need to be used to convert each other, that is, the main power supply, the first reserve power supply, the second reserve power supply. After in-depth study of the three power supply automatic switching switch, a set of driving actuator is designed in this paper. It uses one motor to control the three-way power separately, and realizes the mechanical linkage between the three-way power supply, that is, there is only one power supply in the closing state at the same time. In addition, on the basis of the original dual power supply, the switching power supply circuit, voltage acquisition circuit and frequency acquisition circuit are designed based on PIC single chip microcomputer. Angle displacement circuit and other main hardware circuits, and anti-jamming treatment. Finally, the main program and functional interface of the three-power automatic switching switch are designed. It has the characteristics of simple actuator control principle and can accurately detect the voltage and frequency of the three-way power supply. It has the function of simple man-machine interaction and can be used in industrial field.
【学位授予单位】：河北工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM564.8
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本文编号：1360015