Design and Implementation of Energy Storage Photovoltaic Grid-Connected Power Generation System

2020 IEEE 3rd International Conference on Automation, Electronics and Electrical Engineering (AUTEEE) Pub Date : 2020-11-20 DOI:10.1109/AUTEEE50969.2020.9315693

Z. Guan, Feng Tian

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引用次数: 1

Abstract

This paper presents an energy storage photovoltaic grid-connected power generation system. The main power circuit uses a two-stage non-isolated full-bridge inverter structure, and the main control chip is STM32F407. The two coupling modes of the energy storage device are analyzed and compared. The DC-side coupling mode is selected. When the grid is charging the battery, in order to improve the charging efficiency and stability, an independent AC-DC charging circuit is added. The overall structure of the system was designed, and the hardware circuits of each part of the system were researched and designed, including various converter circuits, isolation and drive circuits, and signal conditioning and acquisition circuits. Finally, an experimental prototype was built for verification. The experimental results show that the system is stable and easy to control, it provides a set of feasible and practical design solutions for energy storage photovoltaic grid-connected systems.

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储能光伏并网发电系统的设计与实现

提出了一种储能光伏并网发电系统。主电源电路采用两级非隔离全桥逆变器结构，主控芯片为STM32F407。对储能装置的两种耦合模式进行了分析和比较。选择直流侧耦合模式。当电网对蓄电池进行充电时，为了提高充电效率和稳定性，增加了独立的交直流充电电路。设计了系统的总体结构，并对系统各部分的硬件电路进行了研究和设计，包括各种转换电路、隔离与驱动电路、信号调理与采集电路。最后，建立了实验样机进行验证。实验结果表明，该系统稳定、易于控制，为储能光伏并网系统提供了一套可行实用的设计方案。

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2020 IEEE 3rd International Conference on Automation, Electronics and Electrical Engineering (AUTEEE)

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