设计简介
摘要
PLC在三相异步电动机控制中的应用，与传统的继电器控制相比具有速度快，可靠性高，灵活性强，功能完善等优点。长期以来，PLC始终处于自动化领域的主战场，为各种各样的自动化控制设备提供了非常可靠的控制应用，它能够为自动化控制应用提供安全可靠和比较完善的解决方案，适合当前工业企业对自动化的需求[1]。这篇论文对电动机的正反转的电器控制系统和电动机的正反转的PLC控制系统进行了详细的讲解，并对这两种控制系统进行了对比。三相异步电动机的PLC控制电路，就是三相异步电动机的正反转控制，与传统的继电器控制相比，具有控制速度快、可靠性高、灵活性强等优点，非常实用。 三相异步电动机的应用非常广泛，因为它机构简单，效率高，控制方便，运行可靠，易于维修而且成本低，几乎涵盖了工农业生产和人类生活的各个领域。在这些应用领域中,三相异步电动机由于运行的环境不同，所以造成其故障的发生也很频繁，因此要正确合理的利用它。本文研究的这个系统的控制是采用PLC的编程语言----梯形图,梯形语言是可编程控制器中的应用最广的语言，因为它在继电器的基础上增加了许多功能，指令清晰明白，使逻辑关系清晰直观，编程容易，可读性强，所实现的功能也大大超过传统的继电器控制电路，可编程控制器是一种数字运算操作的电子系统，性能好，能够在恶劣的生产环境中使用[2]。它采用可编程序的存储器，用来在内部存储执行逻辑运算，顺序控制，定时，计数和算术等操作的指令，并采用数字式，模拟式的输入和输出，控制各种各样的机械或生产过程。
Abstract
The application of PLC in the three-phase asynchronous motor control, with the traditional relay control compared with fast speed, high reliability, flexibility, improve the functional advantages. For a long time, PLC is always in the main battlefield in the field of automation, for a variety of automation control equipment provides a very reliable control applications, it can automatic control applications to provide a safe, reliable and relatively perfect solution, suitable for the needs of automation in industrial enterprises at present. The motor positive inversion of the electric control the positive and the negative rotation of the motor system and PLC control system were explained and of the two control systems compared Advantages. PLC control circuit of three-phase asynchronous motor is three-phase asynchronous motor of the positive and negative transfer control, with the traditional relay compared to the control with high speed, high reliability and strong flexibility. Very useful. Three-phase asynchronous motor is widely used, has the advantages of simple structure, high efficiency, convenient control, reliable operation, easy maintenance cost is low, covering almost all areas of industrial and agricultural production and human life, in these applications, three-phase asynchronous motor running environment is different, so the resulting the fault occurrence is also very frequent, so to correct and reasonable use of it. In this paper, we study the The execution of relay control system uses PLC programming language, ladder diagram, ladder language in programmable controller in the application of the most extensive language, because it is based on adding many features, the use of flexible instruction, the logical relation is clear and intuitive, easy programming, readability is strong, the realization of the function is much more than the traditional relay control circuit, the programmable controller is a digital computing operation of electronic systems. It is designed for the harsh industrial environment application and design, it uses programmable memory, used in internal storage logic operation, sequence control, timing, counting and arithmetic operations such as instruction. And the use of digital, analog input and output, control of all kinds of machinery or production process.
目 录
摘要...........................................................................................................2
一 绪论 .........................................................................................................5
二 三相异步电动机简介..............................................................................7
三 电气原理分析..........................................................................................8
四 设计三相异步电动机的顺序控制线路图.............................................10
4.1三相异步电动机启动顺序控制线路...............................................11
4.2三相异步电动机停止顺序控制线路...............................................13
五 设计三相异步电动机的正反转电气控制线路图.................................15
5.1手动正反转控制...............................................................................16
5.2接触器联锁的正反转控制线路.......................................................17
5.3按钮联锁的正反转控制线路...........................................................19
5.4按钮、接触器双重联锁的正反转控制线路...................................20
六 控制线路PLC程序梯形图及其对比分析............................................23
七 PLC程序仿真分析.................................................................................26
总 结.........................................................................................................29
参考文献.........................................................................................................31
谢 辞.........................................................................................................33
PLC在三相异步电动机控制中的应用，与传统的继电器控制相比具有速度快，可靠性高，灵活性强，功能完善等优点。长期以来，PLC始终处于自动化领域的主战场，为各种各样的自动化控制设备提供了非常可靠的控制应用，它能够为自动化控制应用提供安全可靠和比较完善的解决方案，适合当前工业企业对自动化的需求[1]。这篇论文对电动机的正反转的电器控制系统和电动机的正反转的PLC控制系统进行了详细的讲解，并对这两种控制系统进行了对比。三相异步电动机的PLC控制电路，就是三相异步电动机的正反转控制，与传统的继电器控制相比，具有控制速度快、可靠性高、灵活性强等优点，非常实用。 三相异步电动机的应用非常广泛，因为它机构简单，效率高，控制方便，运行可靠，易于维修而且成本低，几乎涵盖了工农业生产和人类生活的各个领域。在这些应用领域中,三相异步电动机由于运行的环境不同，所以造成其故障的发生也很频繁，因此要正确合理的利用它。本文研究的这个系统的控制是采用PLC的编程语言----梯形图,梯形语言是可编程控制器中的应用最广的语言，因为它在继电器的基础上增加了许多功能，指令清晰明白，使逻辑关系清晰直观，编程容易，可读性强，所实现的功能也大大超过传统的继电器控制电路，可编程控制器是一种数字运算操作的电子系统，性能好，能够在恶劣的生产环境中使用[2]。它采用可编程序的存储器，用来在内部存储执行逻辑运算，顺序控制，定时，计数和算术等操作的指令，并采用数字式，模拟式的输入和输出，控制各种各样的机械或生产过程。
Abstract
The application of PLC in the three-phase asynchronous motor control, with the traditional relay control compared with fast speed, high reliability, flexibility, improve the functional advantages. For a long time, PLC is always in the main battlefield in the field of automation, for a variety of automation control equipment provides a very reliable control applications, it can automatic control applications to provide a safe, reliable and relatively perfect solution, suitable for the needs of automation in industrial enterprises at present. The motor positive inversion of the electric control the positive and the negative rotation of the motor system and PLC control system were explained and of the two control systems compared Advantages. PLC control circuit of three-phase asynchronous motor is three-phase asynchronous motor of the positive and negative transfer control, with the traditional relay compared to the control with high speed, high reliability and strong flexibility. Very useful. Three-phase asynchronous motor is widely used, has the advantages of simple structure, high efficiency, convenient control, reliable operation, easy maintenance cost is low, covering almost all areas of industrial and agricultural production and human life, in these applications, three-phase asynchronous motor running environment is different, so the resulting the fault occurrence is also very frequent, so to correct and reasonable use of it. In this paper, we study the The execution of relay control system uses PLC programming language, ladder diagram, ladder language in programmable controller in the application of the most extensive language, because it is based on adding many features, the use of flexible instruction, the logical relation is clear and intuitive, easy programming, readability is strong, the realization of the function is much more than the traditional relay control circuit, the programmable controller is a digital computing operation of electronic systems. It is designed for the harsh industrial environment application and design, it uses programmable memory, used in internal storage logic operation, sequence control, timing, counting and arithmetic operations such as instruction. And the use of digital, analog input and output, control of all kinds of machinery or production process.
目 录
摘要...........................................................................................................2
一 绪论 .........................................................................................................5
二 三相异步电动机简介..............................................................................7
三 电气原理分析..........................................................................................8
四 设计三相异步电动机的顺序控制线路图.............................................10
4.1三相异步电动机启动顺序控制线路...............................................11
4.2三相异步电动机停止顺序控制线路...............................................13
五 设计三相异步电动机的正反转电气控制线路图.................................15
5.1手动正反转控制...............................................................................16
5.2接触器联锁的正反转控制线路.......................................................17
5.3按钮联锁的正反转控制线路...........................................................19
5.4按钮、接触器双重联锁的正反转控制线路...................................20
六 控制线路PLC程序梯形图及其对比分析............................................23
七 PLC程序仿真分析.................................................................................26
总 结.........................................................................................................29
参考文献.........................................................................................................31
谢 辞.........................................................................................................33
