The Modeling and the Stability Control of the DC Converter Based on the Matlab/Simulink

Fu Long Li; Wen Zheng Zhang; Xiao Peng Liu

doi:10.4028/www.scientific.net/AMM.734.941

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 734The Modeling and the Stability Control of the DC...

The Modeling and the Stability Control of the DC Converter Based on the Matlab/Simulink

Abstract:

There is an important practical value of the state space average method in the modeling of the DC/DC converter. Compared with the state space average method, the equivalent circuit modeling method is more intuitive and the physical meaning is clearer. Under the assumptions of the ideal switch, small signal, small ripple and low frequency, taking Cuk converter as an example, the equation of state and the equation of state of the Ac small signal are deduced. The correctness and rationality of the two methods are proved by using the Matlab / Simulink software, and the stability of the system is improved by designing a PI controller.