Simulation of high-efficiency interleaved step-up DC-DC converter with coupled inductors to use in renewable energy system

• Autorzy: Tomaszuk A.
• Konferencja: Computer Applications in Electrical Engineering 2012 (23-24.04.2012; Poznań, Polska)
• Języki publikacji: EN

Abstrakty

EN

The majority of renewable energy sources deliver relatively low output voltage. In renewable energy systems high-efficiency high voltage gain step-up DC-DC converters are required as the interface between low voltage sources and the load. Therefore overall performance of the renewable energy system is strongly affected by the efficiency of step-up DC-DC converter itself. This paper presents high-efficiency interleaved step-up DC-DC converter with coupled inductors. Interleaved approach minimizes the current stress of the switches as well as the a sizes of the inductors but also allows reducing input current ripples. The other advantage of interleaving structure is the flexibility of number of phases extension. The number of working phases can be determined depending on the power requirements of the load. High efficiency is achieved by recycling the energy from leakage inductance present in practical coupled inductors. In order to re-use leakage energy voltage clamp circuit is applied. It allows to minimize voltage stress across the switches further improving the efficiency of interleaved DC-DC converter. The simulation carried out will present parametric and performance characteristics of the converter. Most efficient configuration and the number of phases will be discussed in this paper.

Słowa kluczowe

EN

DC-DC converter; inductor; renewable energy system

• Wydawca: Wydawnictwo Politechniki Poznańskiej
• Czasopismo: Poznan University of Technology Academic Journals. Electrical Engineering
• Rocznik: 2012
• Tom: No. 70
• Strony: 217--224
• Opis fizyczny: Bibliogr. 5 poz., rys.

Twórcy

autor

Tomaszuk A.

• Białystok University of Technology

Bibliografia

• [1] Brian Shaffer, “Interleaving Contributes Unique Benefits to Forward and Flyback Converters” Unitrode (TI) Power Supply Design Seminar (2004/2005).
• [2] Chang Ch., Knights M., “Interleaving Technique in Distributed Power Conversion Systems”, Transactons On Circuits and Systems IEEE, May (1995).
• [3] Erickson R., Maksimovich D., “Fundamentals of Power Electronics”, Norwell, Kluwer Academic Publisher, 2001.
• [4] Dwari S., Parsa L., “An Efficient High-Step-Up Interleaved DC-DC Converter With a Common Active Clamp” Transactions on Power Electronics IEEE, vol. 26, no. 1, January (2011).
• [5] Wilson P., Brown A., “Effective Modeling of Leakage Inductance for use in Circuit Simulation” IEEE (2008).