期刊名称：Journal of Theoretical and Applied Information Technology
印刷版ISSN：1992-8645
电子版ISSN：1817-3195
出版年度：2021
卷号：99
期号：17
语种：English
出版社：Journal of Theoretical and Applied
摘要：Power quality enhancement is a critical factor during the design of new multilevel inverters. These topologies are generally modified in order to improve the operating of the converter. In this paper a detailed analysis of a new modified cascaded cells multilevel inverter architecture with power bank adjustment is presented. This new topology provides an enhanced power output through the combination of state of charge balancing in the power bank and the adaptation of firing angles. The present work uses an adapted genetic algorithm for determining the optimal firing angles. The equilibration method assesses the state of charge of the batteries in the power bank in order to generate a balanced discharge. This approach showed promising results related to the voltage output quality, functioning reliability and batteries life span. Each battery string in the power bank is connected to a level generation switch. The monitoring and control algorithm performs a variation of combinations of the power bank�s DC storage units in order to control their discharge, while the control algorithm operates independently of the adjustment algorithm. The proposed multilevel inverter topology is first presented, then the discharge method of the power bank is analyzed under different circumstances. All tests on the batteries state of charge and voltage output generation are achieved in a simulation environment.
关键词：Multilevel Inverter (MLI);Cascaded Cells;Power Bank;Power Management;New MLI Architecture;SoC Balancing;Discharge Control
