Stability and harmonic assessment of a controlled microgrid using newton methods

This paper presents the accelerated computation of the periodic steady state solutions of a nonlinear controlled microgrid system with multiple distributed generation units, using six Newton methods. The performance of the Newton methods are compared in terms of their numerical properties, computational effort and efficiency in order to know their advantages and disadvantages in the computation of the periodic steady state solution of microgrids. The commutation of the power electronic converters and the closed-loop power management control are explicitly considered in the computed solution. Simulation results are presented to evaluate the Newton methods.