基于plc矿井风机的自动控制系统毕业设计.docVIP

毕业设计说明书 基于PLC的矿井压风机自动控制系统设计 专业 电气工程及其自动化 学生姓名 班级 学号 指导教师 完成日期 毕业设计说明书（毕业论文） 独创性声明 本人声明所呈交的毕业设计说明书(毕业论文)是本人在导师指导下进行的研究、设计工作后独立完成的。除了文中特别加以标注和致谢的地方外，说明书中不包含其他人己经发表或撰写过的研究成果。对本文的研究所做贡献集体和个人，均己在说明书中作了明确的说明并表示谢意。本人完全意识到本声明的法律后果由本人承担。 毕业设计说明书（毕业论文）作者签名(手写): 日期: 年 月 日 指导教师签名(手写): 日期: 年 月 日 基于PLC矿井压风机的自动控制系统 摘 要 关键词： Automatic control system based on PLC of the mine pressure fan Abstract: Air compressor is a compressed gases to enhance gas pressure or transport gases power supply equipment.Screw air compressor is more with its low loss, high efficiency, the advantages of strong adaptability, is widely used in industrial production field.With the enlargement of the scale, the low efficiency of original control mode, repair rate increases and other issues are also increasingly prominent.At the same time, the rapid development of electronic technology and microelectronics technology, automatic pressure control system by PLC, with high reliability and good energy saving effect, PLC automatic control system is the product of this technology.Based on the understanding of social development and the demand of cases, a fan for mine pressure in Shandong project background, design and develop a kind of PLC automatic control pressure blower system, replacing the old days of manual control and distributed control, thus improve the degree of automation of the system.At the same time the paper studies for compressor control several ways, and were summarized, at the same time, designed the fan on the overall scheme of the automatic control of pressure, hardware configuration and software and program design.In this system, programmable controller (Siemens S7-300 series) as the lower machine, better solved the problems such as automatic control; PC software USES MCGS software, through the software to develop a visual surveillance images. Both effective combination, using pressure as the main control parameter, to the mine pressure in the working