基于PLC的备用电源自动投入装置的设计(附CAD图纸)
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基于PLC的备用电源自动投入装置的设计(附CAD图纸)(论文17000字)
摘要:本文介绍了三菱可编程逻辑控制器PLC（Programmable Logic Controller）在备用电源中的应用。PLC采集一次设备的正常运行状态信号,作为备用电源自动投入的启动条件和闭锁条件,通过编程来实现不同的功 能,以适应不同的运行方式。与继电器组成的备用电源自动投入装置相比,该方案具有可靠性高、接线简单、控制灵活、调试方便和投资小等优点。因此，可编程逻 辑控制器在电力系统自动化领域中得以广泛应用。
关键词：可编程逻辑控制器PLC；备用电源；三菱FX ；
Design of Alternate Power Auto-Cast Device Based on PLC
Abstract: A scheme of programmable logic controller PLC(Mitsubishi FX ) which putts into the backup power automatically was introduces in this paper . PLC gathers the first equipment the normal operation of state signal as launce conditions and closed conditions of putting into the backup power automatically and through programming to achieve different functions to adapt to different operating manner. Compared with the relay consistence of putting into the backup power automatically device, this scheme has advantages of high reliability, simple wiring, control flexibility, convenience debugging, small investment and so on. Therefore, the programmable logic controller is widely used in the field of power system automation.
Key words： programmable logic controller ;backup power; Mitsubishi FX ;
结合国内外关于备用电源自动投入装置的研究，了解备用电源自动投入的发展前景以及研究意义、理解备用电源自动投入装置的实现逻辑、应用三菱公司的FX 系列PLC实现对玉林桥水电站厂用电备用电源制动投入的控制。
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