Abstract: The present disclosure relates to an apparatus for controlling multiple inverters and an inverter system including the same. The apparatus according to the present disclosure determines a motor having the smallest operation time among motors which are not being operated as a main motor to thereby transmit a running reference and a frequency reference to the corresponding main motor, if a speed of a main motor which is being operated is above a speed set by a user and a feedback is below a predetermined level.

Abstract: There is disclosed a method for controlling an inverter in a solar pump system. The method includes; when a current DC link voltage is above or equal to a reference level, and when a previous output frequency of an alternating-current voltage applied to a load increased in a previous period, increasing an current output frequency of an AC voltage to be applied to the load at a first slope; and when the current DC link voltage is above or equal to the reference level, and when the previous output frequency of the AC voltage applied to the load decreased in the previous period, increasing the current output frequency of the AC voltage to be applied to the load at a second slope smaller than the first slope.

Abstract: The present disclosure relates to an apparatus for controlling multiple inverters and an inverter system including the same. The apparatus according to the present disclosure determines a motor having the smallest operation time among motors which are not being operated as a main motor to thereby transmit a running reference and a frequency reference to the corresponding main motor, if a speed of a main motor which is being operated is above a speed set by a user and a feedback is below a predetermined level.

Abstract: In some embodiments, a method for controlling multiple motors to control a plurality of motors connected to a single inverter stably and efficiently is provided. The method may include calculating operation priorities of each of the plurality of motors on the basis of total cumulative operation time information of the plurality of motors, and controlling to operate or stop the plurality of motors on the basis of operation priorities of each of the plurality of motors.