Transactions of Nanjing University of Aeronautics & Astronautics
Power Distribution Optimization of Parallel Hybrid Excitation Generator with Active Rectifier
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Abstract:
The power distribution characteristic of a parallel hybrid excitation generator （PHEG） is studied and optimized. The PHEG consists of a permanent magnet machine part （PMMP）， a flux modulation machine part （FMMP）， and a rectifier. The winding coupling relationship and inductance characteristic of PMMP and FMMP are illustrated. By introducing the controllable devices， the internal power factor angle of the PHEG can be adjusted， which provides the possibility to optimize the power distribution between PMMP and FMMP. Based on the analysis of the phasor diagrams， it is found that the output capacity of PMMP in PHEG with an active rectifier is improved. Therefore， PHEG can output constant power and voltage over a wider speed with the lower loss， which verifies that PHEG with an active rectifier is a promising candidate in the aircraft DC power generation system.
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TM33
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