Analytical frequency modeling of a diode rectifier Formulation for SQP solving versus formulation for Newton-Raphson solving

摘要

Purpose - Static converters generate current harmonics in grids. Numerous studies on analytical frequency models of converters are often required to carry out their harmonic modeling in the context of sizing by optimization. Some formulations are proposed to solve such models. Each formulation has its own advantages and drawbacks. The paper mainly focusses on two formulations: the first to be solved by sequential quadratic programming (SQP) and the second to be solved by Newton-Raphson (NR). In this way, the purpose of this paper is to present the performances of each formulation and compare the results of both formulations for the modeling of a single-phase diode rectifier.