Load emergency braking system and method based on pumping energy consumption resistor

Abstract

The invention discloses a load emergency braking system and method based on a pumping energy consumption resistor. The system comprises a control system, a power supply system, a speed and position detection module, a communication module, a driver, a servo motor and a bleeder resistor, wherein the driver comprises a driver control module, a driving circuit, a power module and a pumping energy consumption circuit. The method comprises the steps that firstly, the control system powers up the driver through the power supply system, and the driver control module receives position and speed instructions sent by the control system through the communication module and controls the servo motor to operate; then the speed and position detection module monitors the running state in real time and uploads real-time information to the control system, and when it is detected that the driver is in an out-of-control state, out-of-control information is uploaded to the control system; and finally, thedriver control module controls the bleeder resistor to consume the energy of the servo motor through the pumping energy consumption circuit so that the servo motor is braked emergently. The emergencybraking of the load can be realized when the system is out of control, and the stability is high.

Description

technical field [0001] The invention belongs to the servo drive system technology, in particular to a load emergency braking system and method for pumping energy-consuming resistors. Background technique [0002] With the continuous improvement of the automation degree of the control system, the automatic control system adopts a three-phase AC servo system, which can realize the control requirements of high precision and fast response. Most of the servo systems adopt the AC-DC-AC PWM modulation working mode. The existing domestic servo products adopt three closed-loop control of position, speed and current. For the load device with large inertia, due to the large inertia and high speed, in the application occasions with high requirements for safety, once the In the event of power failure or out of control, the load cannot be effectively controlled, and the load will slide due to the large inertia. The huge inertial energy will collide with the system limit, and even cause se...

AI Technical Summary

Problems solved by technology

However, adding external system devices will take up a lot of space, and there are problems such as high cost, poor braking effect, and weak stability.

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