Design parameters of converter.

Renewable resources are being explored to meet the increasing energy demand in the world. The development of RES and their integration into the grid necessitate a voltage conversion to match with the grid voltage. This conversion can be implemented using DC-DC converters. A high-gain DC-DC Converter with low loss is proposed in this article. Thus, the proposed integrated converter is obtained by incorporating a boost converter at the primary side of the flyback converter (FLC) and a VM cell at the secondary side to perform a elevated voltage gain at a lower duty ratio. The Switched Capacitor network is implemented to elevate the voltage gain. The dynamic performance of a controller can be enhanced using an FOPID controller. A comparison analysis has been done using the most recent topologies in order to confirm the superiority of the Proposed converter. A 100W experimental prototype model has been constructed in order to further validate the simulation results. The efficiency of this converter is demonstrably significantly higher than the current topology, according to measured performance. Therefore, it can be said that this topology can be used for applications involving renewable and sustainable energy.

为应对全球日益增长的能源需求，可再生能源的开发利用正得到广泛研究与探索。可再生能源系统（Renewable Energy Systems, RES）的研发与并网运行，需通过电压变换以匹配电网电压等级，而直流-直流（DC-DC）变换器可实现该电压转换功能。本文提出一款低损耗高增益DC-DC变换器。所提出的集成变换器，通过在反激变换器（Flyback Converter, FLC）的原边增设升压变换器，并在副边引入电压倍增单元（Voltage Multiplier, VM），可在较低占空比下实现较高的电压增益；同时引入开关电容网络以进一步提升电压增益。采用分数阶PID控制器（Fractional Order PID, FOPID）可优化控制器的动态性能。为验证所提变换器的优越性，本文与当前主流拓扑结构开展了对比分析。为进一步验证仿真结果的有效性，搭建了功率为100W的实验样机模型。实测性能结果表明，该变换器的效率显著优于现有拓扑结构。综上，该拓扑结构可应用于可再生能源与可持续能源相关场景。