Electrician training of motor working principle and the composition of the work

A. the motor operation of work: Now more commonly used mainly by ac motor, it can be divided into three phase asynchronous motor, single phase ac motor, two of the former is more used in industry, and then a usually used in civil electrical appliances. Look from the structure of the motor, mainly divided into the control part and execute drive part and control part is mainly composed of three-phase PWM www.facebook.com/dongfeng.motor wave generator, single chip microcomputer, intelligent inverter, rectifier module, A/D module, fault detection, input and output channels, etc; Perform drive part mainly includes the three-phase motor and position sensor bar. B. the working principle of the machine Motor operation is working on the current and voltage motor part sensor and position sensor detection, draw A three-phase inverter module output current, voltage and the valve position signal, and then magnet generator by the A/D converted into single chip microcomputer. Single-chip microcomputer by controlling the effect of PWM wave generator, finally realize the operation control of the machine. Inverter modules work required by the rectifier circuit dc voltage signal to the whole bridge rectifier of 380 v power supply. For the analysis of the motor running, here mainly for industrial application of the principle of three phase asynchronous motor are discussed. Motor rotation is the basic working principle of the three-phase symmetric winding zhongtong people produce round rotating magnetic field, the three-phase current conductor cutting rotor rotating magnetic field induction electromotive force and the current, the rotor current carrying conductor in magnetic field by electromagnetic force, thus forming the electromagnetic torque, driving the motor rotor rotation.