Using Hardware-in-the-Loop Simulation Platform for Empirical Testing of Photovoltaic System

The reliable operation of photovoltaic power generation systems is related to the security and stability of the power grid and is the focus of research today. During the operation of photovoltaic inverters, due to the constraints of the on-site environmental conditions, the empirical test of the reliability of photovoltaic inverters is mainly based on long-term operating data for analysis, which has problems such as long test cycle, high cost, and weak controllability. This paper proposes a new photovoltaic system simulation empirical test method, it uses a hardware-in-the-loop simulation platform to simulate the photovoltaic system, completes the analysis and calculation of the thermal characteristics and failure probability of key components of the inverter, compared with the case without considering the thermal characteristics of the bus capacitor, its reliability is reduced by 18.4%, which shows that the empirical test of photovoltaic systems can be completed through the hardware-in-the-loop simulation method.