CPC H02J 13/00004 (2020.01) [G05B 15/02 (2013.01); H02J 3/14 (2013.01); H02J 3/241 (2020.01); H02J 13/00001 (2020.01); H02J 13/00002 (2020.01)] | 13 Claims |
1. A variable frequency drive arrangement for driving an AC electric motor, the variable frequency drive arrangement comprising:
a. a power input to receive an AC waveform from an AC power distribution network;
b. power electronics for outputting a variable frequency output for driving the AC electric motor, the power electronics being configured to vary a frequency of the output to vary a speed of rotation of the AC electric motor;
c. a control module, configured for:
i. monitoring a characteristic of the AC waveform to detect an occurrence of a state of imbalance in the AC power distribution network resulting from a power generation deficit within the AC power distribution network, the characteristic being observable at a power connection interface between the variable frequency drive and the AC power distribution network;
ii. in response to detection of the state of imbalance, sending a control signal to the power electronics to alter a characteristic of the variable frequency output to reduce an electrical consumption of the AC electric motor
d. a network interface allowing the control module to communicate with a remote entity over a data network, the control module further configured to generate and send a message to the remote entity via the network interface indicative of a degree of reduction of the electrical consumption of the AC electric motor.
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