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A high gain input parallel output series DC/DC converter with dual coupled inductors
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A high gain input-parallel output-series DC/DC converter with dual coupled inductors

Category : Power Electronics


Sub Category : DC TO DC CONVERTERS (CHOPPERS)


Project Code : ITPW09


Project Abstract

High voltage gain dc–dc converters are required in many industrial applications such as photovoltaic and fuel cell energy systems, high-intensity discharge lamp (HID), dc back-up energy systems, and electric vehicles. This paper presents a novel input-parallel output-series boost converter with dual coupled inductors and a voltage multiplier module. On the one hand, the primary windings of two coupled inductors are connected in parallel to share the input current and reduce the current ripple at the input. On the other hand, the proposed converter inherits the merits of interleaved series-connected output capacitors for high voltage gain, low output voltage ripple, and low switch voltage stress. Moreover, the secondary sides of two coupled inductors are connected in series to a regenerative capacitor by a diode for extending the voltage gain and balancing the primary-parallel currents. In addition, the active switches are turned on at zero current and the reverse recovery problem of diodes is alleviated by reasonable leakage inductances of the coupled inductors. Besides, the energy of leakage inductances can be recycled. A prototype circuit rated 500-W output power is implemented in the laboratory, and the experimental results shows satisfactory agreement with the theoretical analysis.

                  PROPOSED SYSTEM        

EXISTING SYSTEM

Power factor correction

Power  factor   not corrected

Power quality improved

Power quality not improved

Regulated power supply in both output

Unregulated power supplied. only one end are effective

Power losses is low

Power losses is high




 
 
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