變頻器調(diào)速畢業(yè)論文設(shè)計(jì)

1、變頻器調(diào)速畢業(yè)論文(設(shè)計(jì))ABSTRACTAC induction motor is one of the most important industrial and agricultural drag equipment. It has been widely used because of its simple structure and easy maintenance. With the further development

2、of society, AC motor is not limited to simple constant speed control, in the more modern industrial production. Many devices need to be adjusted to a specific speed according to different working environments. For AC mot

3、or speed proposed requirements. The realization of operation speed regulation and stable operation.AC variable frequency technology is energy saving, a major means to improve the process to improve product quality and im

4、prove the environment, promoting technological progress. AC motor frequency conversion technology are speed smooth and good, high efficiency; low speed characteristics, static clearance rate high, relatively good stabili

5、ty, wide speed range, high precision advantages and characteristics. Variable-frequency Drive has been widely used not only in traditional electric drive system, and almost has been extended to all areas of industrial pr

6、oduction. Especially in air conditioners, washing machines, refrigerators and other appliances. In order to achieve the remote control in poor working conditions in the motor, the introduction of the PLC (Programmable Lo

7、gic Controller ) control unit, realize the variable frequency speed regulation system of intelligent control, makes the speed regulation system performance more superior, meet the need of modern industrial production.The

8、 design is based on PLC, frequency converter speed control system, PLC and frequency converter together to achieve the reversing of the motor, acceleration and deceleration, and rapid braking.Keywords: Variable-frequency