US 12,081,023 B2
Control methods and apparatus for parallel operation of multiple portable power stations
Yan-Fei Liu, Kingston (CA); Binghui He, Kingston (CA); Yang Chen, Hefei (CN); and Bo Sheng, Kingston (CA)
Assigned to Queen's University at Kingston, Kingston (CA)
Filed by Queen's University at Kingston, Kingston (CA)
Filed on Dec. 12, 2022, as Appl. No. 18/079,104.
Claims priority of provisional application 63/388,062, filed on Jul. 11, 2022.
Claims priority of provisional application 63/355,073, filed on Jun. 23, 2022.
Prior Publication US 2023/0420939 A1, Dec. 28, 2023
Int. Cl. H02J 3/00 (2006.01); H02J 7/02 (2016.01); H02J 7/34 (2006.01); H02J 13/00 (2006.01); H02M 7/797 (2006.01)
CPC H02J 3/007 (2020.01) [H02J 7/02 (2013.01); H02J 7/342 (2020.01); H02J 13/00022 (2020.01); H02M 7/797 (2013.01); H02J 2207/20 (2020.01)] 23 Claims
OG exemplary drawing
 
1. A portable power station (PPS) unit, comprising:
an AC input port adapted to receive AC power;
a connection point for an energy storage device that stores electrical energy as DC power;
an AC output port adapted to output AC power;
an inverter that converts DC power from the energy storage device to AC power that is output by the AC output port;
a controller that receives AC current information of AC power that is received at the AC input port and produces a control signal for the inverter;
wherein the controller controls the PPS unit to operate as a voltage source or a current source based on the control signal.