Abstract
The design of high voltage gain DC-DC boost converter is carried out with the addition of the Voltage Multiplier (VM) method. Here the coupled inductor and VM methodologies are proposed to reduce the switching and conduction losses of the Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The Zero Current Switching (ZCS) technique with coupled inductor leakage inductance is used to operate the MOSFET. The leakage inductance is used to decrease the reverse recovery current across the diode. The design procedure of the boost converter and corresponding output waveforms are presented in this paper. Photovoltaic (PV) source converter with coupling inductors soft switching technique has been analyzed and tested in this paper.
Highlights
In recent days the demand for the electrical power increasing day by day
The high static gain can be achieved by increasing the number of Voltage Multiplier (VM) cells, which are involved in this converter
S1 and S2 the VM circuit works as a nondissipative snubber and the energy stored in the coupling inductors are transformed into the capacitors C1 and C2
Summary
In recent days the demand for the electrical power increasing day by day. Many conventional power generation topologies are proposed but they increase the environmental pollution and consumption of fossil fuels [1 - 8]. Due to the exhaust of fossil fuels and the increasing level of pollution renewable sources like solar, wind, hydro, fuel cell, biogas is rapidly used for power generation [9], [10]. In order to achieve high step-up in these converters turns ratio of isolation transformer need to be increased [12 - 14]. Full-bridge, fly-back, forward converters used for step-up the voltage levels in solar PV systems [19]. If the solar PV system selected as an energy source the battery stores the excess power during higher irradiation time and supply to the load when the power is required [24 - 29]. The basic boost converters are used for low and medium power levels. These converters have non-pulsating input current and simple structure. Phase-shifted full-bridge converters used for high step-up gain, it is possible by
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