Synchronous servo motor can do vector control?
Servo control algorithm used, is actually a simplified vector control algorithm?
Vector and v / f is the inverter algorithm, emphasis on algorithms, and servo is a way to apply the surface,
1, synchronous servo motor can do vector control –
This is possible, as we have done in previous projects.
2, the algorithm used by the servo control, is actually a simplified vector control algorithm –
You do not understand this, you need to figure out these issues “What is the vector control mode? What is the servo control mode? Their difference?” Specific explanations on these issues can be found in the following analysis:
1) About vector control mode –
Vector control, in its simplest terms, is to convert AC motor speed through a series of equivalent transformations, equivalent to the DC motor speed control characteristics, so simple, as a deeper understanding, it is necessary to understand the mathematical model of the inverter, Motor science and other disciplines.
The principle of vector control is to simulate the control principle of DC motor. According to the dynamic mathematical model of asynchronous motor, a series of coordinate transformations are used to decompose the stator current vector into excitation component and torque component to control the torque current component and excitation component respectively .
The magnetic field and torque are decoupled after the magnetic field of the rotor is oriented, so as to achieve the purpose of controlling the torque of the asynchronous motor so as to obtain the control performance of the asynchronous motor close to that of the DC excited DC motor.
Specifically, the stator current vector of an induction motor is decomposed into a current component (excitation current) for generating a magnetic field and a current component (torque current) for generating a torque, respectively, while controlling the amplitude and the phase between the two components, that is, Control the stator current vector, so call this control method called vector control mode.