Apparatus for controlling multiple inverters and inverter system including the same
AssigneeLsis Co., Ltd.
InventorChae-Bong BAE
Life of this patent
Estimating the term…
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.
Claims10
An apparatus for controlling multiple inverters for controlling the multiple inverters using one inverter, the apparatus comprising:
- a first communicating unit receiving a feedback from a sensor;
- a second communicating unit receiving information related to a state including an accumulated operation time of motors connected to the multiple inverters, from each of the multiple inverters, and transmitting a running reference and a frequency reference to each of the multiple inverters;
- and
- a controlling unit determining a motor having the smallest operation time among motors which are not being operated as a new main motor to thereby transmit the running reference and the frequency reference to an inverter connected to the main motor which is newly determined, if a speed of a main motor in operation is above a speed set by a user and the feedback is below a predetermined level.
An inverter system comprising an apparatus for controlling multiple inverters, the apparatus controlling the multiple inverters using one inverter, the inverter system comprising:
- a sensor providing a feedback;
- multiple serve inverters transmitting information related to a state including an accumulated operation time of motors which are each connected to a leader inverter, and receiving a running reference and a frequency reference, respectively, from the leader inverter;
- and
- the leader inverter receiving the feedback from the sensor, and determining a motor having the smallest operation time among motors which being not used as a new main motor to thereby transmit the running reference and the frequency reference to a serve motor connected to the main motor which is newly determined, if a speed of a main motor in operation is above a speed set by a user and the feedback is below a predetermined level.
Dependencies are inferred from the claim text.