METHOD FOR AUTOMATIC SPEED CONTROL OF MOTOR

摘要

PURPOSE:To enable suppression of a decrease in total gain in the case of drooping. CONSTITUTION:An automatic speed controller 10 for a motor is drooped by a drooping gain operator 14 and an adder 20a. Feedback control conforming with a deviation between speed command and actual speed is made by the adder 20b and a speed controller 12. A compensation gain operator 16 uses compensation gain Ke conforming with at least drooping gain Kd and proportional gain Kg to correct characteristics of feedback control. Therefore, a decrease in total gain K due to drooping can be suppressed.