کد مقاله g161
عنوان مقاله:
High step-up isolated efficient single switch DC-DC converter for renewable energy source
سال ارائه: 2014 نوع مقاله: ژورنال گزارش فارسی: دارد
کلید واژه :
مبدل DC به DC Single switch DC-DC , converter , High step-up , Clamp circui , Reverse-recovery , پروژه متلب , شبیه سازی با متلب ,, PSIM
Abstract In this paper, an isolated high step-up single switch DC-DC converter for renewable
energy source is proposed. In the proposed converter high step-up voltage is obtained by single
power switching technique that operates low duty cycle with isolated transformer inductors and
switched capacitors and power diodes. The disadvantage of conventional converters is that it has
high duty ratio and high voltage stress on power devices with less efficiency. The proposed converter
eliminates the switching losses and recycles the leakage energy which includes reverse recovery
energy of the power diode by using passive clamp circuit. To achieve high output voltage gain,
the isolated transformer primary terminal and secondary terminal are connected in series during
switching operation. PSIM software has been used for simulation. Simulation circuit is analyzed
at 40Vdc/400V
dc, 200 W and this operation is validated by implementing in the hardware model
at 12Vdc/120V
dc,60W.
2014 Production and hosting by Elsevier B.V. on behalf of Ain Shams University.
KEYWORDS
Single switch DC-DC
converter;
High step-up;
Clamp circuit;
Reverse-recovery;
PSIM
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