DC-DC converter
POWER ELECTRONICS
BULLETIN OF THE POLISH ACADEMY OF SCIENCES
TECHNICAL SCIENCES, Vol. 59, No. 4, 2011
DOI: 10.2478/v10175-011-0061-7
Review and comparison of high efficiency high power boost
DC/DC converters for photovoltaic applications
J. DAWIDZIUK∗
Faculty of Electrical Engineering, Department of Automatic Control Engineering and Electronics, Bialystok University of Technology,
45D Wiejska St. 15-351 Bialystok, Poland
Abstract. Recent environmental issues have accelerated the use of more efficient and energy saving technologies in renewable energy systems. High power high efficiency boost DC/DC converters for the use in photovoltaic, fuel cell systems are discussed in this paper from the viewpoint of power losses and efficiency. State of the art converters with switching frequency within the range of 25 kHz with IGBTs to 100 kHz with power MOSFETs and the highest efficiency close to 98%, depending on the load conditions, is considered. A comparison and discussion of the highest efficiency high power DC/DC boost converters is also presented in this paper.
Key words: boost DC/DC converters, high efficiency, high power, photovoltaic systems, renewable energy.
1. Introduction
In many renewable energy applications high efficiency, high power, high voltage boost DC/DC converters are required as an integral interface between the available low voltage sources and the output loads, which operate at higher voltages. Examples are energy storage components such as batteries, and ultracapacitors which are used in the power trains of hybrid electric vehicles, electric vehicles, and fuel cell vehicles. In the modern power drive, the voltage levels of the energy storage devices are predominantly low when the motors of the vehicles are driven at much higher voltages. In the computer industry and in the telecommunication batteries with low voltage levels are utilized as a back-up power source .
Another example is automotive headlamps which use
high-intensity
BULLETIN OF THE POLISH ACADEMY OF SCIENCES
TECHNICAL SCIENCES, Vol. 59, No. 4, 2011
DOI: 10.2478/v10175-011-0061-7
Review and comparison of high efficiency high power boost
DC/DC converters for photovoltaic applications
J. DAWIDZIUK∗
Faculty of Electrical Engineering, Department of Automatic Control Engineering and Electronics, Bialystok University of Technology,
45D Wiejska St. 15-351 Bialystok, Poland
Abstract. Recent environmental issues have accelerated the use of more efficient and energy saving technologies in renewable energy systems. High power high efficiency boost DC/DC converters for the use in photovoltaic, fuel cell systems are discussed in this paper from the viewpoint of power losses and efficiency. State of the art converters with switching frequency within the range of 25 kHz with IGBTs to 100 kHz with power MOSFETs and the highest efficiency close to 98%, depending on the load conditions, is considered. A comparison and discussion of the highest efficiency high power DC/DC boost converters is also presented in this paper.
Key words: boost DC/DC converters, high efficiency, high power, photovoltaic systems, renewable energy.
1. Introduction
In many renewable energy applications high efficiency, high power, high voltage boost DC/DC converters are required as an integral interface between the available low voltage sources and the output loads, which operate at higher voltages. Examples are energy storage components such as batteries, and ultracapacitors which are used in the power trains of hybrid electric vehicles, electric vehicles, and fuel cell vehicles. In the modern power drive, the voltage levels of the energy storage devices are predominantly low when the motors of the vehicles are driven at much higher voltages. In the computer industry and in the telecommunication batteries with low voltage levels are utilized as a back-up power source .
Another example is automotive headlamps which use
high-intensity
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