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| Research on Management Strategy of Marine Battery Energy Storage System |
| Received:June 21, 2020 Revised:July 02, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.09.009 |
| KeyWord:lithium ion battery empirical mode fuzzy control battery life |
| Author | Institution |
| LU Di-hua |
State Key Laboratory of Ocean Engineering of Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai , China |
| CHEN Zi-qiang |
State Key Laboratory of Ocean Engineering of Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai , China |
| ZHOU Shi-yao |
State Key Laboratory of Ocean Engineering of Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai , China |
| HUANG De-yang |
State Key Laboratory of Ocean Engineering of Shanghai Jiao Tong University, Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai , China |
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| Abstract: |
| This paper aims to reduce pollution emissions from ships, extend battery life, and improve the dynamics of energy storage systems under variable operating conditions. The battery system adopts a two-layer management strategy based on empirical mode decomposition and fuzzy control. The lithium iron phosphate battery pack is used as the main power source to bear the smooth power, and the super capacitor pack is used as the auxiliary power source to take the high frequency power. The sample entropy is introduced to the power signal to evaluate. Compared with a single empirical mode strategy, the discharge depth of the lithium iron phosphate battery pack after the fuzzy correction strategy is changed from 6.55% ~ 94.35% to 14.56% ~ 57.15%; the super capacitor pack discharge depth from 14.83% ~ 52.11% to 12.7% ~ 79.38%; the entropy value of the power signal sample of the lithium iron phosphate battery pack decreases from 0.0182 to 0.0177.Under variable operating conditions, the above control strategy can reduce the average fuel consumption of the diesel engine under single operating conditions, reduce the impact of transient power on the storage battery, delay the aging rate of the battery, extend the battery life, and improve the reliability of the marine energy storage system and environmental protection. |
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