US 12,240,296 B2
Electrical architecture for powering transportation refrigeration unit
Xu She, Cohoes, NY (US); Mary D. Saroka, Syracuse, NY (US); and Jeffrey J. Burchill, Baldwinsville, NY (US)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Appl. No. 17/252,170
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
PCT Filed Sep. 19, 2019, PCT No. PCT/US2019/051963
§ 371(c)(1), (2) Date Dec. 14, 2020,
PCT Pub. No. WO2020/068556, PCT Pub. Date Apr. 2, 2020.
Claims priority of provisional application 62/738,689, filed on Sep. 28, 2018.
Prior Publication US 2021/0252947 A1, Aug. 19, 2021
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01); F25D 29/00 (2006.01); H02J 1/10 (2006.01); H02J 3/32 (2006.01); H02J 7/14 (2006.01)
CPC B60H 1/3232 (2013.01) [B60H 1/00364 (2013.01); B60H 1/00428 (2013.01); F25D 29/003 (2013.01); H02J 1/102 (2013.01); H02J 3/32 (2013.01); H02J 7/1415 (2013.01); B60H 2001/3261 (2013.01); B60H 2001/3292 (2013.01); H02J 2310/46 (2020.01)] 8 Claims
OG exemplary drawing
 
1. A power system architecture for powering a transportation refrigeration system comprising:
a transport refrigeration unit (TRU) operable in a vapor compression cycle, the TRU having a compressor configured to compress a refrigerant, an evaporator heat exchanger operatively coupled to the compressor, an evaporator fan configured to provide return airflow from a return air intake and flow the return airflow over the evaporator heat exchanger, the TRU also including a TRU controller configured to execute a process to determine an alternating current (AC) power requirement for the TRU;
a generator power converter configured to receive power from an AC generator operably coupled to an axle or wheel hub, and the generator power converter configured to provide a generator direct current (DC) power;
a grid power converter configured to receive a grid three phase AC power from a grid power source operable to provide the grid three phase AC power;
the grid power converter operable to provide a grid DC power;
an energy storage device, the energy storage device operable to provide a first DC power and connected to a variable DC bus;
a power management system operably connected to direct three phase AC power to the TRU based at least in part on at least the AC power requirement;
an energy storage system including the energy storage device and a first energy storage system DC/DC converter configured to provide first DC power on a fixed DC bus to the power management system based at least in part on the AC power requirement and a second energy storage system DC/DC converter configured to convert at least a portion of a second DC power on the fixed DC bus to supply the variable DC bus and the energy storage device.