The output power from a photovoltaic (PV) system varies due to its high dependency on the surrounding irradiance and temperature. To overcome this, a maximum power point (MPP) tracker is used alongside a DC-DC converter to track the varying power. The purpose of the DC-DC converter is to interface the PV system to the load on the grid or a standalone system by balancing the power between them. Selection of the appropriate DC-DC converter is essential because it plays an important role in the overall performance of the PV system. In this paper, various nonisolated conventional DC-DC converter topologies are reviewed, compared, and discussed. The review and discussion of each converter are based on the recent development of converters in terms of efficiency, steady state oscillation, number of components, voltage transfer, and tracking speed. The advantages and disadvantages of the recent topologies within this scope are also highlighted in this paper. A simulation work has been performed to validate the performance of all the reviewed converters using the perturb and observe MPP tracking algorithm under different sets of irradiance and temperature. Finally, this paper also provides a selection method to select the best converter in a stand-alone PV system.The output power from a photovoltaic (PV) system varies due to its high dependency on the surrounding irradiance and temperature. To overcome this, a maximum power point (MPP) tracker is used alongside a DC-DC converter to track the varying power. The purpose of the DC-DC converter is to interface the PV system to the load on the grid or a standalone system by balancing the power between them. Selection of the appropriate DC-DC converter is essential because it plays an important role in the overall performance of the PV system. In this paper, various nonisolated conventional DC-DC converter topologies are reviewed, compared, and discussed. The review and discussion of each converter are based on the recent development of converters in terms of efficiency, steady state oscillation, number of components, voltage transfer, and tracking speed. The advantages and disadvantages of the recent topologies within this scope are also highlighted in this paper. A simulation work has been performed to validate the pe...

中文翻译：

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光伏系统的非隔离式传统 DC-DC 转换器比较：综述

光伏 (PV) 系统的输出功率由于其高度依赖于周围的辐照度和温度而变化。为了克服这个问题，最大功率点 (MPP) 跟踪器与 DC-DC 转换器一起使用以跟踪变化的功率。DC-DC 转换器的目的是通过平衡它们之间的功率，将光伏系统连接到电网或独立系统上的负载。选择合适的 DC-DC 转换器至关重要，因为它对光伏系统的整体性能起着重要作用。在本文中，回顾、比较和讨论了各种非隔离式传统 DC-DC 转换器拓扑。每个转换器的回顾和讨论都是基于转换器在效率、稳态振荡、组件数量、电压传输和跟踪速度方面的最新发展。本文还重点介绍了该范围内最新拓扑的优缺点。已执行模拟工作以验证所有使用扰动和观察 MPP 跟踪算法在不同辐照度和温度下的转换器的性能。最后，本文还提供了一种在独立光伏系统中选择最佳转换器的选择方法。光伏（PV）系统的输出功率由于其对周围辐照度和温度的高度依赖性而变化。为了克服这个问题，最大功率点 (MPP) 跟踪器与 DC-DC 转换器一起使用来跟踪变化的功率。DC-DC 转换器的目的是通过平衡它们之间的功率，将光伏系统连接到电网或独立系统上的负载。选择合适的 DC-DC 转换器至关重要，因为它对光伏系统的整体性能起着重要作用。在本文中，回顾、比较和讨论了各种非隔离式传统 DC-DC 转换器拓扑。每个转换器的回顾和讨论都是基于转换器在效率、稳态振荡、组件数量、电压传输和跟踪速度方面的最新发展。本文还重点介绍了该范围内最新拓扑的优缺点。已执行模拟工作以验证 pe... 每个转换器的回顾和讨论都是基于转换器在效率、稳态振荡、组件数量、电压传输和跟踪速度方面的最新发展。本文还重点介绍了该范围内最新拓扑的优缺点。已执行模拟工作以验证 pe... 每个转换器的回顾和讨论都是基于转换器在效率、稳态振荡、组件数量、电压传输和跟踪速度方面的最新发展。本文还重点介绍了该范围内最新拓扑的优缺点。已执行模拟工作以验证 pe...