EXPLICIT TRANSIENT DC-LINK VOLTAGE RESPONSE ANALYSIS FOR MORE ELECTRIC AIRCRAFT

HVDC system has been widely used in more electric aircraft (MEA). This paper focuses on analyzing the more electric aircraft power system powered by permanent magnet synchronous generators (PMSG), and models the source system output impedance of a PMSG based on droop control. Furthermore, the influence of PI controller parameters and load variation in the dc bus voltages is studied, and the minimum controller parameters that meet the requirements for bus voltage under different power level load variation are obtained. Finally, the feasibility of the proposed method of selecting the controller parameters is validated through simulation.