The simulation results of this paper show that: (1) Enough output power can be provided to meet the design and use requirements of the energy-storage charging pile; (2) the control guidance circuit can meet the requirements of the charging pile; (3) during the switching process of charging pile connection state, the voltage state changes smoothly.
The aging process of electric vehicle charging piles is influenced by various factors, including material strength, fatigue life, environmental conditions, and so on. In the model, these aging factors should be comprehensively considered to more accurately describe the distribution and trend of the life of charging piles.
The failure of the charging pile may be caused by many factors, the most common of which is the external environment and operation and maintenance frequency. Therefore, this paper constructs a potential fault identification model of electric vehicle charging pile from the above two aspects.
The severity can be characterized by the state evaluation results of the electric vehicle charging pile. During the service life of the electric vehicle charging pile, the cumulative factor of service life will gradually develop toward the state inducement factor (deterioration causes defects).
From the perspective of failure generation and development, the factors affecting the failure probability of electric vehicle charging piles can be divided into two categories: one is the cumulative factor of service life, including the aging (material fatigue aging and wear) brought by the increase of service life.
Combined with the fault degree, maintenance experience, and expert analysis of the charging pile, the state classification strategy is given. Each indicator of the charging pile is standardized according to the threshold level of the operating state.
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Preventive maintenance decision model of electric …
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Lithium-metal batteries (LMBs) are prime candidates for next-generation energy storage devices. Despite the critical need to understand calendar aging in LMBs; cycle life and calendar life have received inconsistent attention. For acceptance into an application, especially electric vehicles, batteries are required to have sufficient calendar life which is defined as periods of low or ...
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(PDF) Future Trends and Aging Analysis of Battery Energy Storage ...
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