US 11,916,269 B2
Charging system including fuel cell and charging method using the same
Deuk Keun Ahn, Whasung-Si (KR); and Jae Min Son, Whasung-Si (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Nov. 22, 2021, as Appl. No. 17/532,786.
Claims priority of application No. 10-2021-0030994 (KR), filed on Mar. 9, 2021.
Prior Publication US 2022/0293983 A1, Sep. 15, 2022
Int. Cl. H01M 8/04858 (2016.01); B60R 16/033 (2006.01); H01M 8/04082 (2016.01); H01M 8/04537 (2016.01); H01M 16/00 (2006.01)
CPC H01M 8/04947 (2013.01) [B60R 16/033 (2013.01); H01M 8/04201 (2013.01); H01M 8/04559 (2013.01); H01M 8/0494 (2013.01); H01M 16/006 (2013.01); H01M 2220/10 (2013.01); H01M 2250/10 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A charging system including a fuel cell, the charging system comprising:
a plurality of fuel cell stacks receiving hydrogen from a hydrogen supply unit to generate power;
a plurality of charging dispensers configured to be electrically connected to a load device and configured to provide power to the load device; and
a controller configured to distribute and supply the power generated by the plurality of fuel cell stacks to a charging dispenser to which the load device is connected among the plurality of charging dispensers, to compare a total available power amount of the plurality of fuel cell stacks with a total power demand amount of the charging dispenser to which the load device is connected, and to control a power generation amount of each of the plurality of fuel cell stacks according to a result of the comparing,
wherein, when a number of load devices connected to the charging dispenser is changed, the controller is configured to re-compare the total available power amount of the plurality of fuel cell stacks with the total power demand amount of the charging dispenser to which the load device is connected and to correct and control the power generation amount of each of the plurality of fuel cell stacks according to a result of the re-comparing.
 
11. A charging system including a fuel cell, the charging system comprising:
a plurality of fuel cell stacks receiving hydrogen from a hydrogen supply unit to generate power;
a plurality of charging dispensers configured to be electrically connected to a load device and configured to provide power to the load device; and
a controller configured to distribute and supply the power generated by the plurality of fuel cell stacks to a charging dispenser to which the load device is connected among the plurality of charging dispensers, to compare a total available power amount of the plurality of fuel cell stacks with a total power demand amount of the charging dispenser to which the load device is connected, and to control a power generation amount of each of the plurality of fuel cell stacks according to a result of the comparing,
wherein, when the power demand amount is changed, the controller is configured to re-compare the total available power amount of the plurality of fuel cell stacks with the total power demand amount of the charging dispenser to which the load device is connected and to correct and control the power generation amount of each of the plurality of fuel cell stacks according to a result of the re-comparing.
 
12. A charging system including a fuel cell, the charging system comprising:
a plurality of fuel cell stacks receiving hydrogen from a hydrogen supply unit to generate power;
a plurality of charging dispensers configured to be electrically connected to a load device and configured to provide power to the load device; and
a controller configured to distribute and supply the power generated by the plurality of fuel cell stacks to a charging dispenser to which the load device is connected among the plurality of charging dispensers, to compare a total available power amount of the plurality of fuel cell stacks with a total power demand amount of the charging dispenser to which the load device is connected, and to control a power generation amount of each of the plurality of fuel cell stacks according to a result of the comparing,
wherein the controller is configured to monitor output voltage of each of the plurality of fuel cell stacks, and when the output voltage is equal to or less than a reference voltage, the controller is configured to control a fuel cell stack having the output voltage equal to or less than the reference voltage among the plurality of fuel cell stacks, to limit output of the fuel cell stack having the output voltage equal to or less than the reference voltage, by a predetermined amount, and
wherein, when the output of the fuel cell stack is limited by the predetermined amount, the controller is configured to re-compare the total available power amount of the plurality of fuel cell stacks with the total power demand amount of the charging dispenser to which the load device is connected and to correct and control the power generation amount of each of the plurality of fuel cell stacks according to a result of the re-comparing.
 
13. A charging method using a charging system including a fuel cell, the method comprising:
determining, by a controller, a charging dispenser to which a load device is connected among a plurality of charging dispensers;
comparing, by the controller, a total available power amount of the plurality of fuel cell stacks with a total power demand amount of the charging dispenser to which the load device is connected; and
controlling, by the controller, a power generation amount of each fuel cell according to a result of comparing between the total available power amount and the total power demand,
wherein the charging system includes:
the fuel cell;
the plurality of fuel cell stacks receiving hydrogen from a hydrogen supply unit to generate power;
the plurality of charging dispensers configured to be electrically connected to the load device and configured to provide power to the load device; and
the controller configured to distribute and supply the power generated by the plurality of fuel cell stacks to the charging dispenser to which the load device is connected among the plurality of charging dispensers.