Motor simulator without requiring a motor
A motor simulator without requiring a motor is a testing motor controller used for inputting a driving signal according to a power supply driving signal, feeding back a status response of a dynamic calculator of the motor simulator, outputting a voltage and current reference command value required by the motor simulator to the motor simulator, so that the dynamic calculator and the electric power converter installed in the motor simulator generate a voltage and a current of an actual motor in an operating status. Therefore, the testing motor controller keeps converting and adjusting the electric energy for driving an operation of the motor simulator according to a status response fed back by the dynamic calculator of the motor simulator, so as to achieve a control function of the testing motor controller for testing the rotation speed and positioning of the motor.
1. A motor simulator without requiring a motor, comprising:
a testing motor controller, which is a device for driving the motor simulator to operate;
a motor simulator, for simulating the characteristic of combining a motor with a load, providing a verification platform to the testing motor controller, and outputting electric power from an electric power converter to achieve an energy recycle, and comprising:
an analog/digital converter, electrically coupled to the testing motor controller, for converting an analog power signal into a digital control signal;
a dynamic calculator, electrically coupled to the analog/digital converter, for computing a dynamic response of the motor combined with the load, and providing a feedback control of the testing motor controller;
an electric power converter, electrically coupled to the analog/digital converter and the dynamic calculator, for controlling a control parameter according to a voltage and current reference command value outputted by the testing motor controller and a rotor position and rotation speed parameter of the dynamic calculator to produce an output voltage, so as to feed back the electric power of the output voltage to a power supply side; and
a digital/analog converter, electrically coupled to the dynamic calculator and the testing motor controller, for converting the digital control signal into the analog power signal; and
a power supply driving signal, electrically coupled to the testing motor controller, for computing a power supply driving composite signal of the testing motor controller;
thereby, the testing motor controller outputs the voltage and current reference command value required by the motor simulator to the motor simulator according to a driving signal inputted from the power supply driving signal and a status response fed back from the dynamic calculator of the motor simulator, so that the dynamic calculator and the electric power converter installed in the motor simulator generate a voltage and a current for an actual motor in an operating status, and the testing motor controller keeps converting and adjusting electrical energy for driving an operation of the motor simulator according to the driving signal inputted from the power supply driving signal and the status response fed back from the dynamic calculator of the motor simulator, so as to achieve a control function of the testing motor controller for testing the rotation speed and positioning of the motor.
2. The motor simulator without requiring a motor according to claim 1 , wherein the dynamic calculator includes a motor simulation circuit and a load simulation circuit, and the motor simulation circuit creates various types of motor dynamic parameters, and the load simulation circuit creates a load characteristics.
3. The motor simulator without requiring a motor according to claim 1 , wherein the electric power converter is comprised of a pulse width modulator (PWM) and a power converter, and the PWM changes a pulse width modulation method to drive the power converter, and the power converter is controlled by the PWM to output electric power.