US 12,230,961 B2
Power control device
Simon Jasmin, Montreal (CA)
Assigned to SYSTEMEX ENERGIES INC., Laval (CA)
Filed by SYSTEMEX-ENERGIES INC., Laval (CA)
Filed on Dec. 12, 2022, as Appl. No. 18/079,236.
Application 18/079,236 is a continuation of application No. 16/982,214, granted, now 11,652,364, previously published as PCT/CA2019/050335, filed on Mar. 19, 2019.
Claims priority of provisional application 62/644,800, filed on Mar. 19, 2018.
Prior Publication US 2023/0104999 A1, Apr. 6, 2023
Int. Cl. H02J 13/00 (2006.01); G05B 15/02 (2006.01); H02J 3/14 (2006.01); H02J 3/24 (2006.01)
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
OG exemplary drawing
 
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.