A High Gain Converter for Photovoltaic Based on Basic Topologies

Xingwei XING; Shuo FENG; Jinhai AN; Chang ZHANG

doi:10.16513/j.2096-2185.DE.2308209

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Distributed Energy ›› 2023, Vol. 8 ›› Issue (2) : 67-75. DOI: 10.16513/j.2096-2185.DE.2308209

Application Technology

A High Gain Converter for Photovoltaic Based on Basic Topologies

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Abstract

In recent years, as an important supplementary energy source, photovoltaic power generation has been widely used in production and life. In order to maximize the photovoltaic input, the DC/DC converter is used as the impedance matching between the photovoltaic input side and the load side. The traditional converter topology is constrained by factors such as device characteristics and is not suitable for grid-connected or high-voltage DC confluence scenarios. Therefore, based on the basic converter topology, this paper proposes a combined high-gain DC/DC converter suitable for photovoltaics. In this paper, the topology, working principle, circuit parameter design and performance analysis of the converter are analyzed in detail. At the same time, a simulation model is built in PSIM and a 250 W, 48 V/300 V experimental prototype is built. Experiments and simulations show the correctness of the relevant analysis. Compared with the same type of converter, the proposed converter has the characteristics of high gain, low device stress, continuous input and output current, and simple drive circuit. The proposed topology has engineering application value.

Key words

high gain / low voltage stress / DC-DC converters / photovoltaic modules

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Xingwei XING , Shuo FENG , Jinhai AN , et al. A High Gain Converter for Photovoltaic Based on Basic Topologies[J]. Distributed Energy Resources. 2023, 8(2): 67-75 https://doi.org/10.16513/j.2096-2185.DE.2308209

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