Torque Distributed Control Strategy For The Dual Three- Phase Pmsm In Hybrid Energy Storage System Application

Torque Distributed Control Strategy for the Dual Three- Phase PMSM in Hybrid Energy Storage System Application.

Abstract

            This paper proposes a torque distributed control strategy for the multiphase machines in the hybrid energy storage system (HESS) application. Different with the conventional energy current regulation method, the system energy management is researched by the machine torque distribution in different sets of windings. The load power are then afforded by the energy storage devices connected with the windings through the inverters. The principle of the distributed torque operation is explored with a dual three-phase PMSM model and the asymmetrical windings operation is explained with the flux vector diagram. The windings decoupling compensation, flux observer and parameter identification methods are presented. Based on the proposed strategy, a power frequency dividing coordinated regulation is achieved. The hybrid energy storage devices can directly response to the average or instantaneous parts in the load torque and power fluctuation.