Proposal of Perovskite Solar Cell Modules Having Dynamical Characteristics Similar to Silicon Solar Cells around Maximum Power Point

Abstract

The perovskite solar cell (PSC) has been gaining rapid attention for its high power conversion efficiency, which is similar to widely-used silicon solar cells (SSCs), while being thin, lightweight, and suitable for installation on curved surfaces. On the other hand, it is well-known that PSCs exhibit hysteresis in their transient current-voltage characteristics, which introduces uncertainty in their electrical performance compared to SSCs and is one of the factors preventing their fully practical application. In this study, we propose a new module that retains the physical advantages of PSCs while ensuring that their transient characteristics around the maximum power point (MPP) closely mimic those of SSCs. This module consists of a PSC and a model-matching controller, which regulates only the transient characteristics around the MPP while keeping the steady-state current-voltage characteristics unchanged. Furthermore, since the hysteresis property can vary depending on manufacturing processes, we consider designing the controller through grey-box modeling. Finally, we validate the effectiveness of the proposed module through numerical simulations using the equivalent circuit model of PSC.