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The paper presents a simulation for energy short term storage unit integrated into a stand alone hybrid wind diesel system. The energy short term storage unit is a flywheel device which is driven by a 6/4 switched reluctance machine (SRM) operating in motor and generator modes. The control strategy is developed to smooth the wind power turbulence fluctuations in order to decrease the fuel consumption by the diesel generator and to allow it a suitable operation because of its slow dynamic. The system model is implemented on Matlab-Simulink environment.

This paper presents a design optimization of an axial flux permanent magnet synchronous machine (AFPMSM). The design optimization is performed using separately two different algorithms: a deterministic algorithm and a stochastic algorithm. The used DIRECT algorithm and genetic algorithm (GA) are described and tested separately to optimize a 10kW / 130 rpm AFPMSM. The obtained results by the two algorithms are compared in terms of precision of the found global optimum, convergence speed and simplicity of implementation. In particular, optimal design results show the effectiveness of DIRECT algorithm.