1. Control the start, stop, speed and so on of the servo motor;
2. Carry out various maintenance on the motor (overload, short circuit, undervoltage, etc.)
3. Respond to external signals, and control the servo motor (position, speed, torque) after internal PID conditioning;
The controller is the component that controls the speed of the motor, and is also the center of the electric system of the electric vehicle, which has the functions of under-voltage, current limiting or over-current maintenance. The functional controller also has a variety of riding modes and a self-check function for the electrical components of the whole vehicle. The controller is the central component of the energy management system and various signal processing of electric vehicles.
At present, the servo drives of the main stream all use the digital signal processor (DSP) as the control center, which can complete the more complex control algorithm, and complete the digitalization, networking and intelligence.
Power devices generally use the drive circuit centered on the intelligent power block (IPM), the IPM integrates the drive circuit, together with overvoltage, overcurrent, overheat, undervoltage and other fault detection and maintenance circuits, and also participates in the soft start circuit in the main circuit to reduce the impact of the start-up process on the driver.
1。 Hardware articulation. How can the drive interface with multiple SEOs without interfering with each other? So at this moment you need to have a switching device, assuming that the current drive is connected to A sevo. So what kind of equipment do you choose to completely connect the cable to device B, including the shielded cable, This is a big problem, and it is impossible to ensure the stability of the signal after switching, because of the direct hard-wire switching of the cable.
2. In terms of software, we can judge whether the current equipment A is still equipment B, and we can complete the immovable action through the control program, and the program can be completed.
Servo motor refers to the engine that controls the operation of mechanical components in the servo system, and is a kind of indirect transmission equipment with auxiliary motors.
The servo motor can make the control speed, position accuracy very precise, and can convert the voltage signal into torque and speed to drive the control target. The rotor speed of the servo motor is controlled by the input signal, and can respond quickly, in the automatic control system, it is used as a fulfillment element, and has the characteristics of small electromechanical time constant, high linearity, starting voltage, etc., and can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft.
The power drive unit mainly rectifies the input three-phase power or mains power through the three-phase full-bridge rectifier circuit to obtain the corresponding direct current. After the rectified three-phase electricity or mains, and then through the three-phase sinusoidal PWM voltage inverter frequency conversion to drive the three-phase permanent magnet synchronous communication servo motor.
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