For the motor double closed-loop control system, starting from the current ring, first determine the structure and parameters of the silo wall vibrator, and then use the whole current ring as the other link of the rotational speed ring as the control object of the rotational speed ring, and then determine the structure and parameters of the speed silo wall vibrator. Due to the change of mechanical inertia on the motor shaft and the change of the amplification multiples of the system under the condition of current discontinuity, the parameters of the controlled object of the electromagnetic silo wall vibrator are tied.
In order to adapt to the change of this parameter and obtain good anti-jamming ability, the speed loop of the system is designed by adaptive control. In order to avoid the appearance of differential signals sensitive to high frequency signals such as interference in the adaptive law, the state variable electromagnetic silo wall vibrator is used to increase the jamming ability to a certain extent. In order to further improve the anti-jamming ability of the adaptive system, the Model reference Adaptive control can be adopted from the model taking state. This method replaces the missing object state in the controlled state, so the structure of the electromagnetic silo wall vibrator is relatively simple.
In addition, because of the method of taking state from the model, the state taken is not state, therefore, the interference signal is avoided to cause the saturation of the input of the controlled object. Phase shift electromagnetic silo wall vibrator short-circuit impedance of 8%, the same current, input 380V when the short-circuit impedance effect of the proportion, will be much larger than the rated input 10000 ringing ratio, resulting in power unit input voltage deformation, thus affecting the voltage output.
In order to realize high performance electromagnetic silo wall vibrator, it is necessary to adopt vector control or direct quantity control, which is a control method based on motor dynamic mathematical model, which can control torque and flux quickly and effectively, so that the speed regulation system has good dynamic performance and stability. For the design of the current electromagnetic silo wall vibrator in the control system, it is hoped that the current control system can achieve the corresponding response speed and control accuracy. Well, we need the vibrator design indicator value.
