Purpose

At first, the organic/inorganic and hybrid PV materials by their electrical model are described. Then the proposed converter topology, circuit analysis and various operating modes of converter according to on/off timing of switches are investigated. The current and voltage in the converter components are illustrated and the voltage gain and switching stress of proposed converter are presented. Finally, to show the effectiveness of the proposed converter, the power loss analysis is provided and the simulation is done in PSIM software. In the last section, the advantages of the proposed topology of higher efficiency by lower number of components in compare with other conventional topologies are presented.

Design/methodology/approach

In this paper, an improved topology of DC-DC converter based on VL technique is proposed for Perovskite Solar cells (PeSCs). The PeSCs attracted a lot of interest due to their potential in combining the advantages of both organic and inorganic components. The proposed converter by using fewer components and higher output voltage generation in compare with conventional ones could be a good candidate for PeSCs due to lower efficiency of this cells. The performance of converter is expressed in continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and the boundary conditions for the proposed converter is presented.

Findings

By using VL technique, this converter is used to boost the lower output voltage levels of PeSCs for grid connection. The PV cell output voltage is increased from 24.5 V to 106 V by proposed converter topology. The step-by-step voltage increasing by charging and discharging of inductor and capacitor is used for boosting the input voltage. By comparing other converters, there is no design complexity in the proposed converter structure, and the power loss is much reduced which increases the converter efficiency. On the other hand, due to using lower number of elements of energy storage elements such as inductors and capacitors, the converter cost is also diminished. Therefore, the design topology simplicity which result simple control algorithm and lower number of components which diminish the system cost by appropriate voltage boosting capability are the main advantages of this proposed topology for new PeSCs which don’t have enough efficiency in compare with old Si PV cells.

Originality/value

In this paper, by using the lower number of components a new structure of DC-DC converter based on the VL technique is proposed. The advantages of this converter such as the simplicity, easier control and high voltage gain by lower power loss, could make this converter a good candidate for new PeSCs where the system whole efficiency will be a critical point to have the unique properties of this new materials in lower loss.

中文翻译：

---

一种采用VL技术的新型高升压非隔离DC-DC转换器用于钙钛矿光伏电池

目的

首先，通过电学模型描述了有机/无机和混合光伏材料。然后研究了根据开关的开/关时序提出的转换器拓扑、电路分析和转换器的各种工作模式。说明了转换器组件中的电流和电压，并介绍了所提出转换器的电压增益和开关应力。最后，为了证明所提出转换器的有效性，提供了功率损耗分析，并在 PSIM 软件中进行了仿真。在最后一节中，提出了与其他传统拓扑相比，所提出的拓扑通过较少数量的组件实现更高效率的优势。

设计/方法/方法

本文针对钙钛矿太阳能电池 (PeSCs) 提出了一种基于 VL 技术的改进型 DC-DC 转换器拓扑结构。PeSCs 因其在结合有机和无机成分的优点方面的潜力而引起了很多兴趣。与传统转换器相比，所提出的转换器通过使用更少的组件和更高的输出电压产生，由于这种电池的效率较低，因此可能是 PeSC 的良好候选者。转换器的性能以连续导通模式 (CCM) 和非连续导通模式 (DCM) 表示，并给出了所提出转换器的边界条件。

发现

通过使用 VL 技术，该转换器用于提升 PeSC 的较低输出电压水平，用于并网。通过提出的转换器拓扑，光伏电池的输出电压从 24.5 V 增加到 106 V。通过电感和电容的充放电逐步升高的电压用于提升输入电压。通过比较其他转换器，所提出的转换器结构没有设计复杂性，并且功率损耗大大降低，从而提高了转换器效率。另一方面，由于使用较少数量的储能元件，例如电感器和电容器，转换器成本也降低了。所以，

原创性/价值

在本文中，通过使用较少的元件数量，提出了一种基于VL技术的DC-DC转换器的新结构。这种转换器的优点，如简单、更容易控制和通过更低的功率损耗获得高电压增益，可以使这种转换器成为新型 PeSC 的良好候选者，其中系统整体效率将成为具有这种新材料独特性能的关键点在较低的损失。