摘要详情

ID / 提交时间

210 / 2021-11-01 13:14:45

标题

Self-Adaptive Balance Control Strategy of Cascaded Multilevel Energy Storage Power Conversion System

关键字

cascaded H-bridge,energy storage power conversion system,SOC-balancing control,zero-sequence voltage injection,balance coefficient

主题及专题

Renewable energy system > Energy storage system application

状态

全文被拒

作者

Jinghua Zhou / North China University of Technology

Shoubin Sun / North China University of Technology

摘要

Cascaded multilevel energy storage power conversion system generally has the issue of battery state of charge (SOC) imbalance among phases. To address this issue, traditional zero-sequence voltage injection method has been commonly used, but it has slow speed and overmodulation problems when the extent of imbalance is high. Concerning with this problem, this study analyzed the influencing factors of the injected zero-sequence voltage, studied the relationship between the balance coefficient (Λ) and the general vector (ΔSOC_g), and proposed a zero-sequence voltage injection balance strategy based on self-adaptive balance coefficient. The proposed self-adaptive balance control strategy is able to regulate the coefficients during the balance process and accelerate the balance process without causing over-modulation, thus ensuring safe and stable operation of the system. A cascaded multilevel battery energy storage power conversion system has been built in MATLAB/SIMULINK, which verified the feasibility and effectiveness of the proposed control strategy

重要日期

会议日期

07月11日

2023

至

08月18日

2023
11月10日 2021

初稿截稿日期
12月10日 2021

注册截止日期
12月11日 2021

报告提交截止日期

主办单位

IEEE IAS

承办单位

IEEE IAS Student Chapter of Southwest Jiaotong University (SWJTU)
IEEE IAS Student Chapter of Huazhong University of Science and Technology (HUST)
IEEE PELS (Power Electronics Society) Student Chapter of HUST