Subharmonic ripple analysis of an interleaved buck converter based on the Filippov method
Journal Title: TecnoLógicas - Year 2017, Vol 20, Issue 38
Abstract
In many papers, the averaged model of power switching converters is used to design the control system due to its simple manipulation, which can be approximated by linear transfer functions. Therefore, the power converter commutation causes a state variable ripple that is not considered on the averaged model. The component frequency of the state variables is composed by a power spectrum with a unique peak at the DC level (average variable), a unique peak at the switching frequency (ripple component) and a finite number of peaks in each sub-harmonic (instabilities). The Filippov method is used for instability predictions due to fast dynamics, this method predicts the parameters range that avoids the first bifurcation of the fast dynamics. In this paper a stable space of parameters (Kp, Ti) for a PI controller is presented, it estimated with the Filippov method, for a buck converter with voltage regulation. Finally, the presented results are validated using both Matlab and Psim simulations.
Authors and Affiliations
Julián Peláez-Restrepo, Sergio I. Serna-Garcés, Carlos A. Ramos-Paja, Daniel González-Montoya
Keywords
Related Articles
- EP ID EP401342
- DOI 10.22430/22565337.575
- Views 92
- Downloads 0
Treatment of laboratory wastes by heterogeneous photocatalysis with TiO2
Environmental pollution caused by hazardous waste is a growing and globalized prob-lem. Suchwaste, once emitted, can remain in the environment for hundreds of years. Chem-ical substances are handled and s...
Quality of service evaluation based on network slicing for software-defined 5G systems
This paper presents the evaluation of the quality of service parameters provided by the network slicing approach for 5G networks based on a software-defined networking environment.The open source contro...
Quasi-switched inverter using space vector pulse width modulation with triangular comparison for photovoltaic applications
This workanalyzes a prototype of a quasi-switched boost inverter (qSBI) feeding an isolated resistive load from a DC source. The use of spatial vector pulse width modulation (SPWM) with triangula...
The roles of nanotechnology and internet of nano things in healthcare transformation
Healthcare, as a basic human right, did not remain immune to innovative technologies. Technological progress has significantly contributed to high-quality, on-time, acceptable and affordable healthcare. Since their ap...
Optimization of non-stationary Stackelberg models using a self-adaptive evolutionary algorithm
Stackelberg’sgame models involve an important family of Game Theory problems with direct application on economics scenarios. Their main goal is to find an optimal equilibrium between the decision...