Description
hardware flow control. It is an ideal choice in the field of industrial automation.
Distinguished according to whether there is a position sensor, first of all, it is divided into sensing
and non-sensing. That is, whether Hall or other similar position sensors are used to sense the
position angle of the stator and rotor. In air pump applications, many use non-inductive control.
The excellent algorithm of through-hole is that after the motor is running, it detects the changes in
phase current to switch the phase current. In some heavy-duty or precise control applications,
sensory methods are used.
According to the three-phase power supply of the inverter, it can be divided into square wave control
and sine wave control. The square wave control strategy is simple, and the control process is direct
and effective. It adopts a six-step commutation strategy. The CPU modulates the PWM to drive the
power switch tube to generate a three-phase power supply that can run the motor. The control strategy
of sine wave is relatively complex, but the control effect is much better.
In sine wave control, there are two main control strategies.
One is direct torque control DTC Baidu Encyclopedia. The method is to calculate the estimated values
of motor flux and torque based on the measured motor voltage and current. After controlling the torque,
the motor speed can also be controlled. Direct torque control is a patent of the European ABB company. .
The second is, space vector control FOC Baidu Encyclopedia. Its essence is to equate an AC motor to a DC
motor, and independently control the speed and magnetic field components. By controlling the rotor flux linkage,
and then decomposing the stator current, the two components of torque and magnetic field are obtained. After
coordinate transformation, the normal motor is realized. handover or decoupling control.
During sine wave control, there are many derived more sophisticated control strategies, such as feedforward
control, maximum torque control, field weakening control, etc.
In the process of controlling the motor, there are multiple feedback control loops. When controlling the output
of the motor, there is a current loop; on this basis, there is a control loop that controls the speed; when a servo
motor is used, there is a position loop control.
ICS TRIPLEX T8153C
ICS TRIPLEX T8151C
ICS TRIPLEX T8123C
ICS TRIPLEX T8122C
ICS TRIPLEX T8121C
ICS TRIPLEX T8120C
ICS TRIPLEX T8111C
ICS TRIPLEX T9087
ICS TRIPLEX T9030
ICS TRIPLEX T9084U
ICS TRIPLEX T9083D
ICS TRIPLEX T9083U
ICS TRIPLEX T9082D
ICS TRIPLEX T9082U
ICS TRIPLEX T9901
ICS TRIPLEX T9902
ICS TRIPLEX T9193
ICS TRIPLEX T9191
ICS TRIPLEX T9310-02
ICS TRIPLEX T9882
ICS TRIPLEX T9881
ICS TRIPLEX T9852
ICS TRIPLEX T9851
ICS TRIPLEX T9833
ICS TRIPLEX T9832
ICS TRIPLEX T9831
ICS TRIPLEX T9803
ICS TRIPLEX T9802
ICS TRIPLEX T9801
ICS TRIPLEX T9482
ICS TRIPLEX T9431
ICS TRIPLEX T9401
ICS TRIPLEX T9110
ICS TRIPLEX T9300
ICS TRIPLEX 1433/09232486825
ICS TRIPLEX 151661 4013-2255
ICS TRIPLEX 9100
ICS TRIPLEX 9100 T9100@F2
ICS TRIPLEX FAIR-RITE VO
ICS TRIPLEX T8100
ICS TRIPLEX T8110B
ICS TRIPLEX T8151B
ICS TRIPLEX T8160
ICS TRIPLEX T8191
ICS TRIPLEX T8193
ICS TRIPLEX T8300
ICS TRIPLEX T8310
ICS TRIPLEX T8311
ICS TRIPLEX T8312-4
ICS TRIPLEX T8403
ICS TRIPLEX T8403C
ICS TRIPLEX T8403CX
ICS TRIPLEX T8431
ICS TRIPLEX T8461
ICS TRIPLEX T8461C
ICS TRIPLEX T8480C Analog Output with Paintcoat
ICS TRIPLEX T9310-02 PN-175486
ICS TRIPLEX T9310-02
ICS TRIPLEX T9402
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