Mathematical Modeling of Ultra-Lift Luo Converter Under Non-Ideal Scenario

Abstract

In this paper, a detailed mathematical modeling of non-ideal Ultra-lift Luo Converter (ULLC) is presented by considering all the parasitics of the energy storing elements. The analysis is performed using Leverrier's algorithm in conjunction with the state-space averaging modeling method. The ULLC exhibits very high voltage gain capability, combining both the voltage gain of elementary and super-lift type luo converter. Further, the control to output transfer function and input to output transfer function are analyzed for both ideal and non-ideal scenarios. Besides, frequency response analysis is performed to prove the control stability of the same. Finally, it is believed that the reported findings could be of some assistance to the readers in providing a step-by-step procedure to analyze the steady-state and transient behaviour of ULLC converter under non-idealities and presence of parasitics.