Journal
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
Volume 4, Issue 4, Pages 1147-1157Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JESTPE.2016.2615763
Keywords
Energy system; fault isolation; fault management; grid modernization; peak power tracking (PPT); power system; resiliency; space power; structured microgrids
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The advanced electrical power system (AEPS) is the first remote, resilient dc microgrid for mission-critical space applications. This structured microgrid features resiliency, energy balancing, autonomy, standard interface, fault tolerance, fault isolation, modularity, and scalability. The basic standard building modules are first described. Typical system configurations are then presented to illustrate its versatility and its ability to reduce cost. Fault-tolerant design principles are discussed. A-minuteday simulation is then presented to demonstrate the system-level energy balance and smooth dynamic behaviors when entering and exiting the lunar eclipse. Fuse clearing transient capability is also discussed. A dead-bus recovery circuitry is presented, which ensures self-resiliency. The test results are presented to validate the system design and to demonstrate self-recovery with a dead bus. The measured peak power tracking accuracy and current sharing accuracy among multiple batteries are also presented.
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