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Charging and discharging power distribution control scheme for three-phase interleaved bidirectional DC/DC converter
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[ISSN:1007-449X/CN:23-1 408/TM]

Issue:
2018年11
Page:
1-10
Research Field:
Publishing date:

Info

Title:
Charging and discharging power distribution control scheme for three-phase interleaved bidirectional DC/DC converter
Author(s):
 XIE Bing1 JI Yan-chao1 WANG Jian-ze1 WANG He1 MA Chong2
 ( 1. School of Electrical Engineering and Automation,Harbin Institute of Technology,Harbin 150001,China;2. State Grid Fushun Electric Power Supply Company,Fushun 113000,China)
Keywords:
 interleaving bidirectional operation state of charge voltage compensation coefficient power distribution power correction algorithm
PACS:
TM 46; TM 912
DOI:
10.15938/j.emc.2018.11.001
Abstract:
 In order to reduce the charging /discharging current ripple,extend battery life,and increase the rate of power equalization of battery energy storage system( BESS) with multiple parallel converters,a power distribution control scheme based on the nth order of the state-of charge( SOC) for three-phase interleaved parallel DC /DC converter was presented. The voltage compensation coefficient was introduced to prevent the DC bus voltage drop in the battery discharging process. In the two-stage charging process,
the power correction algorithm was proposed to avoid the power of each particular module exceeding its rated power. In the simulation performed,the power distribution of converter with different equalization rate,transient characteristics of multi-module operation,and charging and discharging mode conversion were simulated and verified. The results show the proposed scheme can quickly and effectively control the power distribution of the battery in the charging and discharging process.

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Last Update: 2018-12-02