Comparative Study of DC-DC Converters for Solar PV with Microgrid Applications

This review emphasizes the role and performance of versatile DC-DC converters in AC/DC and Hybrid microgrid applications, especially when solar (photo voltaic) PV is the major source. Here, the various converter topologies are compared with regard to voltage gain, component count, voltage stress, and soft switching. This study suggests the suitability of the converter based on the source type. The merits of a coupled inductor and interleaved converters in micro gird applications are elucidated. The efficiency and operating frequencies of converts for different operating modes are presented to determine the suitable converters for inductive and resistive loads. The drawbacks of converters are discussed. Finally, the mode of operation of different converts with different grid power sources and its stability and reliability issues are highlighted. In addition, the significance of the converter’s size and cost-effectiveness when choosing various PV source applications are discussed

Investigation of high gain DC/DC converter for solar PV applications

Integration of solar photovoltaic (PV) systems into a microgrid is accomplished with the help of a dual-diode, dual-capacitor, and single-switch DC-DC boost converter. At the output, a power of 400W transfer is achieved together with a voltage gain of 3.92. The converter may be operated in two primary forms, both of that are based on the ON/OFF switches. The benefits that may be noticed in practice from the hardware output are high reliability and decreased switching losses. The properties of the converter are determined via an open loop system that uses pulse width modulation (PWM) switching at 20 kHz. An examination of the step response is carried out. The validations of the proposed converter topology has been compared with the recent converter topologies. The performance of the converter has been evaluated in terms of voltage gain