常州机电职业技术学院毕业设计(论文)作 者: 沈腾飞 学 号: 40921202 系 部: 电气工程系 专 业: 电机与电器 题 目: 基于 PLC 双电源开关设计 指导者:莫莉萍 李建兴评阅者: 2025 年 4 月 毕业设计(论文)中文摘要随着人们对供电可靠性要求越来越高,很多场合需要用两路电源来保证供电的可靠性,这就需要一种双电源切换器在两路电源之间进行可靠切换。采纳可编程控制器解决这类问题具有独特的优势,在电气自动化方面具有宽阔的应用前景和很大的市场潜力。与传统继电控制系统相比较,可编程控制器的优势在于:体积小型化,高度集成,同时还有数字运算、数据处理和数据通讯功能。可编程控制器作为新一代的工业控制装置,结构简单、性能全面、可靠性高。该课题是基于可编程控制器的双电源开关设计,用以实现双电源开关的自投自复,缺相和欠压保护,使之可以适应用电要求较高企业的需求。关键词:双电源切换 PLC 数据处理 缺相和欠压保护毕业设计(论文)外文摘要Title: PLC-based design of dual-power switch Abstract:With increasing demands for high reliability, a number of occasions the need to use two power supplies to ensure reliability of electricity supply, which requires a dual power switch between the two reliable switching power supply. The use of programmable logic controller (PLC) to solve this problem has a unique advantage in electrical automation applications have broad prospects and great market potential. Relay control system with the traditional, compared to programmable logic controller (PLC) has the advantage of being: the volume of smaller, highly integrated, but also the number of computing, data processing and data communication functions. PLC as a new generation of industrial control devices, simple structure, the performance of a comprehensive, high reliability. This topic is based on the programmable logic controller design of dual-power switch, dual power switch for the automatic switch from the complex, lack of phase and under-voltage...