A Novel Fuzzy PI Control Method for Variable Frequency Brushless Synchronous Generators

Yongjie Wang, Huizhen Wang, Weifeng Liu and Qin Wang
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Yongjie Wang: Center for More-Electronic-Aircraft Power System, Nanjing University of Aeronautics and Astronautics, Nanjing 211006, China
Huizhen Wang: Center for More-Electronic-Aircraft Power System, Nanjing University of Aeronautics and Astronautics, Nanjing 211006, China
Weifeng Liu: Center for More-Electronic-Aircraft Power System, Nanjing University of Aeronautics and Astronautics, Nanjing 211006, China
Qin Wang: Center for More-Electronic-Aircraft Power System, Nanjing University of Aeronautics and Astronautics, Nanjing 211006, China

Energies, 2021, vol. 14, issue 23, 1-19

Abstract: With the application of more electric aircraft (MEA) technology, variable frequencies and high power ratings become import features of aero-generators. The brushless synchronous generator, which has a three-stage structure, is the most commonly used type of aero-generator. Due to the variation of operating conditions, the implementation of generator controllers becomes more and more difficult. In this paper, a state space model of a generator is derived and the influence of different operating conditions on the frequency response characteristics of the generator is revealed. Based on a fuzzy PI controller, an additional fuzzy logic controller is applied to modify the PI parameters of the voltage loop by introducing the generator speed to cope with the speed variation. Finally, the results of the simulations and experiments demonstrate that the dual fuzzy PI controller can improve both the steady-state and dynamic performance of the brushless synchronous generator, verifying the previous theoretical study.

Keywords: electric aircraft; brushless synchronous generator; generator control unit; fuzzy PI controller (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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