Invention Grant
- Patent Title: Systems and methods for reducing circulating current and phase to phase imbalance in a parallel modular converter system
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Application No.: US14570165Application Date: 2014-12-15
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Publication No.: US09991719B2Publication Date: 2018-06-05
- Inventor: Matthew J. Krolak , Lijun Gao , Shengyi Liu
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: THE BOEING COMPANY
- Current Assignee: THE BOEING COMPANY
- Current Assignee Address: US IL Chicago
- Agency: Patterson + Sheridan, LLP
- Main IPC: H02J7/35
- IPC: H02J7/35 ; H02J50/50 ; H02J4/00 ; H02P29/00 ; G05B19/042 ; H02M7/493 ; H02M7/5387 ; H02M1/32 ; H02M5/458

Abstract:
A system and method for providing power to a vehicle with reduced circulating current and phase-top-phase imbalance is disclosed. The system can include a plurality of parallel module converter for prioritizing and allocating each electrical load to one or more parallel modular converter modules. The system can also comprise a load balancer to ensure that differences in the properties (e.g., impedance) of the parallel modular converter modules do not create circulating currents or phase-to-phase imbalances. The load balancer can monitor the outputs to the plurality of parallel modular converter modules and modify the inputs to equalize, synchronize, or both the outputs.
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