Abstract
Dual-redundancy electromechanical servo actuation system used in the more electric aircraft servo actuation system has the advantages of both small size and high power density, and improves aircraft servo control system working reliability. And dual-redundancy permanent magnet brushless machine (DRPMBLM) used to realize electric energy to mechanical energy conversion is the key component, which directly affects the performance of the system. In this paper, The system topology is proposed by the analysis of the kind of redundancy structure of DRPMBLM. The mathmatical models of PWM converter model and state equations for DRPMBLM system were proposed. In these models, the mutual coupling for the mutual inductances between phases in each redundancy is considered. The simulation adapts to time-varying Network model. By using this proposed system model, the dynamic performances and characteristics for the DRPMBLM system are predicted and analyzed. Simulation and experimental results are compared in DRPMBLM system to verify the proposed modeling and characteristics analysis.
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