Anti-resonance control system used for power lithium battery preparation device and method thereof

Abstract

An anti-resonance control system used for a power lithium battery preparation device and a method thereof are disclosed. The system comprises a servo controller, a servo driver, a servo motor, a feedforward mechanism and a biquadratic filter. The servo controller is a three-closed-loop PID servo controller formed by a position loop, a speed loop and a current loop. The servo controller is connected to the servo driver and is used for sending an instruction to the servo driver. The servo driver is connected to the servo motor and is used for controlling operation of the servo motor. The feedforward mechanism comprises speed feedforward arranged at an input terminal of the speed loop and acceleration feedforward arranged at an input terminal of the current loop. The biquadratic filter is connected to the speed loop and is used for carrying out biquadratic filtering on an output signal of the speed loop. The current loop outputs a voltage control signal. The servo controller receives the voltage control signal and then drives the servo motor to rotate. Dynamic performance of system tracking response is increased and stability and reliability of system operation are improved.

Description

technical field [0001] The invention relates to an anti-resonance control system and method for a power lithium battery preparation device. Background technique [0002] With the continuous improvement of the precision of the power lithium battery processing technology in the market and the rapid development of the enterprise itself, higher and higher requirements are put forward for the performance of the servo system, and there is an urgent need for more accurate and reliable operation of the power lithium battery preparation device, such as Improve the anti-disturbance capability of the servo system, suppress speed fluctuations and resonance, and improve system tracking response and stability. [0003] System anti-disturbance ability, response hysteresis, poor anti-disturbance ability and mechanical resonance are important problems in servo system. The anti-disturbance ability and response lag of the system seriously affect the control accuracy of the servo system, and t...

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Problems solved by technology

[0003] System anti-disturbance ability, response hysteresis, poor anti-disturbance ability and mechanical resonance are important problems in servo system

The anti-disturbance ability and response lag of the system seriously affect the control accuracy of the servo system, and the resonance causes the decrease of the stability margin of the servo system, forcing the designer to reduce the servo gain, which leads to the narrowing of the frequency band of the servo system and the increase of the steady-state error

At present, notch filters are mainly used on the market to suppress mechanical resonance, but it is difficult to obtain a good suppression effect due to defects such as accurate system resonance frequency, certain phase angle lag, and susceptibility to interference.

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