Design and Analysis of a Step-Up Multi-Port Converter Applicable for Energy Conversion in Photovoltaic Battery Systems

IF 3 4区工程技术 Q3 ENERGY & FUELS

Energies Pub Date : 2023-12-31 DOI:10.3390/en17010223

Siyuan Shi, Song Xu, Wei Jiang, Seiji Hashimoto

引用次数: 0

Abstract

Aiming at the problems of large power fluctuations and poor stability in photovoltaic and other new energy power generation systems, a step-up multiport converter (MPC) that can simultaneously connect low-voltage photovoltaic cells, batteries, and loads (independent loads or power grids) is proposed in this manuscript. According to the possible operating conditions of the system, the working principles are described in detail. Theoretical analysis based on different working modes is presented and a hybrid modulation control method including pulse width modulation (PWM) and phase shift modulation (PSM) are applied to realize energy transmission between photovoltaics, batteries, and power grids. A simulation model is built in the PSIM environment to validate each working state of the system and mode switching function. Experiments are carried out on an experimental platform using the dsPIC33FJ64GS606 digital microcontroller as the control center, and the experimental results successfully verify the system function and PWM + PSM control efficiency.

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设计和分析适用于光伏电池系统能量转换的升压型多端口转换器

针对光伏和其他新能源发电系统功率波动大、稳定性差等问题，本手稿提出了一种可同时连接低压光伏电池、电池和负载（独立负载或电网）的升压型多端口变换器（MPC）。根据系统可能的运行条件，详细介绍了其工作原理。根据不同的工作模式进行了理论分析，并采用了包括脉宽调制（PWM）和相移调制（PSM）在内的混合调制控制方法，以实现光伏电池、电池和电网之间的能量传输。在 PSIM 环境中建立了一个仿真模型，以验证系统的每个工作状态和模式切换功能。实验以 dsPIC33FJ64GS606 数字微控制器为控制中心，在实验平台上进行，实验结果成功验证了系统功能和 PWM + PSM 控制效率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Energies ENERGY & FUELS-

CiteScore

6.20

自引率

21.90%

发文量

8045

审稿时长

1.9 months

期刊介绍： Energies (ISSN 1996-1073) is an open access journal of related scientific research, technology development and policy and management studies. It publishes reviews, regular research papers, and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.