Method and system for feedback-controlling

A method for controlling a motor, the method comprising:

• controlling an inverter using a controller so that an output applied to a motor from the inverter is repeatedly turned on/off by a predetermined period and duty cycle;
• and
• feedback-controlling, by the controller, an output value of the controller applied to the inverter so that the output of the inverter follows a target value, wherein the feedback-controlling comprises an integration control process that integrates an error between the target value and the output of the inverter, and the integration control process is stopped in a period that the inverter turns off the output applied to the motor, wherein the feedback-controlling comprises adding a feed forward compensation factor to the output value of the controller, the feed forward compensation factor for compensating the output in the period that the output of the inverter is turned off, and controlling the inverter.

A system, comprising:

• a current supply unit including an output configured to be repeatedly turned on/off by a predetermined period and duty cycle, the output of the current supply unit configured to be applied to a driving unit;
• and
• a controller configured to control the current supply unit so that the output of the current supply unit is repeatedly turned on/off by the predetermined period and duty cycle, the controller configured to feedback-control an output value of the controller applied to the current supply unit so that the output of the current supply unit follows a target value, wherein the controller is configured to perform an integration control process in the feedback-control, the integration control process comprising a process that integrates an error between the target value and the output of the current supply unit, the controller further configured to stop the integration control process in a period that the output of the current supply unit is turned off, wherein the controller is configured to feedback-control comprising to add a feed forward compensation factor to the output value of the controller and to control the current supply unit compensating the output in the period that the output of the current supply unit is turned off.