In this paper, scheduling optimization of charging pile assembly line inspection is carried out through dynamic planning, and this method is suitable for the scenario of a large
Design a charging pile electric energy verification device to improve the electric energy measurement accuracy of the charging pile. The device is mainly used for detecting
and the advantages of new energy electric vehicles rely on high energy storage density batteries and ecient and fast charg-ing technology. This paper introduces a DC charging pile for new energy electric vehicles. The DC charging pile can expand the charging power through multiple modular charging units in parallel to improve the charging speed. Each charging unit includes
By introducing a particle swarm optimization algorithm with mutation operators, the model can accurately identify potential faults in charging piles and construct a comprehensive operational status i...
In this article, a real-time fault prediction method combining cost-sensitive logistic regression (CS-LR) and cost-sensitive support vector machine classification (CS-SVM)
The photovoltaic-storage charging station consists of photovoltaic power generation, energy storage and electric vehicle charging piles, and the operation mode of which is shown in Fig. 1. The energy of the system is provided by photovoltaic power generation devices to meet the charging needs of electric vehicles. It stores excess electricity
In this paper, scheduling optimization of charging pile assembly line inspection is carried out through dynamic planning, and this method is suitable for the scenario of a large number of charging pile maintenance inspections. This method can make the detection time of each detection station minimum, can effectively sort the charging pile
To better extend the battery life of EVs, KPVIP has established an AI intelligent storage inspection system, as shown in Fig. 8. The use of a charging interface for online battery testing can be pushed to owners and vehicle operating platforms through channels such as KPVIP app, WeChat app, battery testing reports, early warning risks, etc. At
Table 1 Charging-pile energy-storage system equipment parameters Component name Device parameters Photovoltaic module (kW) 707.84 DC charging pile power (kW) 640 AC charging pile power (kW) 144 Lithium battery energy storage (kW·h) 6000 Energy conversion system PCS capacity (kW) 800 The system is connected to the user side through the inverter
The electricity risks of charging piles will directly affect the sales and promotion of electric vehicles. According to the different types of leakage current, the application of residual current
In order to make electric vehicle users more convenient, faster and safer to use charging piles for charging, this paper designs an automatic charging pile IoT data test system
3.3 Design Scheme of Integrated Charging Pile System of Optical Storage and Charging. There are 6 new energy vehicle charging piles in the service area. Considering the future power construction plan and electricity consumption in the service area, it is considered to make use of the existing parking lots and reserve 20%-30% of the number of
In this article, a real-time fault prediction method combining cost-sensitive logistic regression (CS-LR) and cost-sensitive support vector machine classification (CS-SVM) is proposed. CS-LR is first used to classify the fault data of smart charging piles, then the CS-SVM is adopted to predict the faults based on the classified data.
Simulation results show that based on the evaluation system and evaluation method in this paper, the comprehensive evaluation of the safety risk of electric vehicle charging pile can be realized, which especially reduces its impact on the power grid and ensures the safe, stable and economic operation of the power grid.
The electricity risks of charging piles will directly affect the sales and promotion of electric vehicles. According to the different types of leakage current, the application of residual current protection is introduced in detail, and the corresponding leakage protection is analyzed on the basis of the four different charging modes of charging
The application is suitable for the technical field of charging piles, and provides a charging pile electric leakage detection method and electronic equipment, wherein the method...
By introducing a particle swarm optimization algorithm with mutation operators, the model can accurately identify potential faults in charging piles and construct a comprehensive operational status i...
Simulation results show that based on the evaluation system and evaluation method in this paper, the comprehensive evaluation of the safety risk of electric vehicle charging pile can be realized, which especially reduces its impact on the power grid and ensures the safe, stable and
With the continuous development of energy storage technologies and the decrease in costs, in recent years, energy storage systems have seen an increasing application on a global scale, and a large number of energy storage projects have been put into operation, where energy storage systems are connected to the grid (Xiaoxu et al., 2023; Zhu et al., 2019;
As a power electronic device, the power quality problem of charging piles is prominent, which will affect the power grid and nearby equipments. Focosing on the problem of difficult field detection, this paper studied the overall architecture of plug and play test system and completes the design of detection system device, communication system
At present, the planning, construction and operation, and maintenance of electric vehicle charging facilities still face many problems, for example, the operation and maintenance level of charging stations is relatively backward, the state assessment technology of charging piles is lagging behind, the failure rate of charging piles is high, there are many
As a power electronic device, the power quality problem of charging piles is prominent, which will affect the power grid and nearby equipments. Focosing on the problem of difficult field
In order to make electric vehicle users more convenient, faster and safer to use charging piles for charging, this paper designs an automatic charging pile IoT data test system based on NB-IOT. This paper designs the hardware circuit of the charging pile data collection layer and completes circuit design of communication module
This paper puts forward the dynamic load prediction of charging piles of energy storage electric vehicles based on time and space constraints in the Internet of Things environment, which can improve the load prediction effect of charging piles of electric vehicles and solve the problems of difficult power grid control and low power quality caused by the
As shown in Fig. 11, this CNTE charging station is located in Sichuan province Yibin China and has 5 charging piles with a total charging capacity of 600 kW. CNTE integrates energy storage with inspection, using storage and charging inspection cabinets to inspect EV batteries while charging.
To better extend the battery life of EVs, KPVIP has established an AI intelligent storage inspection system, as shown in Fig. 8. The use of a charging interface for online
As summarized in Table 1, some studies have analyzed the economic effect (and environmental effect) of collaborated development of PV and EV, or PV and ES, or ES and EV; but, to the best of our knowledge, only a few researchers have investigated the coupled photovoltaic-energy storage-charging station (PV-ES-CS)''s economic effect, and there is a
Design a charging pile electric energy verification device to improve the electric energy measurement accuracy of the charging pile. The device is mainly used for detecting whether the charging pile can be correctly configured, including a tariff period, a billing unit power, a billing rate, and the like, and detecting the communication
energy storage systems. Keywords: solar photovoltaic energy storage, control system architecture, multi-mode flexible applications, high ffi charging Classification: Power devices and circuits 1. Introduction Due to the volatility and intermittent characteristics of solar photovoltaic power generation systems, the energy storage
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