Brushless dc motor of the three-phase bridge inverter main circuit of the there are two kinds of control mode

 ac three phase asynchronous electric motor stator 
Specifications
1. 20 years manufacturing experience 
2. competitive price,high quality 
Brushless dc motor of the three-phase bridge inverter main circuit of the control mode has two kinds:. Conduction mode and three three conduction mode. Two way switch tube conduction under the law and of the three-phase winding back emf waveform is shown in figure 2. Two kinds of works, each cycle has 6 kinds of conduction state, every 60. Electrical work status change. . Conduction mode, with only two switch tube at any time and at the same time conduction. Switch tube conduction sequence: VT1, VT2 - > VT2, VT3 - > VT3, VT4 - > VT4, VT5 - > VT5, VT6 - > VT6, VT1. Each switch www.dongfeng-motor.com tube conduction, 120. Electric point of view, there are 60. Electric Angle without conduction time, never happen through fault, this way of work, also known as two-phase conduction star three-phase six ways. 


Y2 series 0.75kW (1HP) AC Motor for Speed Control
Specifications
1. effiency: IE2 and IE1 
2. 20 years manufacturing experience 
3. 12 months guarantee 

4. low noise and vibtration
Three three conduction mode refers to the three switch tube at any time and at the same time conduction, switch tube conduction order: VT1, VT2, VT3 - > VT2, VT3, VT4 - > VT3, electric fan motor VT4, VT5 - > VT4, VT5, VT6 - > VT5, VT6, VT1 - > VT6, VT1, VT2. Each switch tube conduction, 180. , the conduction time increased, and if one tube conduction and shut off with a delay, through AC synchronous lamination generator short circuit occurs, causing damage to the device. In addition to good use. Conduction way flat part of the square wave air-gap magnetic field, make the output of the motor is large, the electromagnetic torque is greater than three three conduction mode, and torque stability is good.