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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 Vienna rectifier, DC transformer, and DC converter.
In this paper, the battery energy storage technology is applied to the traditional EV (electric vehicle) charging piles to build a new EV charging pile with integrated charging, discharging, and storage; Multisim software is used to build an EV charging model in order to simulate the charge control guidance module.
Simulation waveforms of a new energy electric vehicle charging pile composed of four charging units Figure 8 shows the waveforms of a DC converter composed of three interleaved circuits. The reference current of each circuit is 8.33A, and the reference current of each DC converter is 25A, so the total charging current is 100A.
This DC charging pile and its control technology provide some technical guarantee for the application of new energy electric vehicles. In the future, the DC charging piles with higher power level, high frequency, high efficiency, and high redundancy features will be studied.
The energy storage charging pile achieved energy storage benefits through charging during off-peak periods and discharging during peak periods, with benefits ranging from 699.94 to 2284.23 yuan (see Table 6), which verifies the effectiveness of the method described in this paper.
Topology 1 is the topology of a DC charging pile consisting of three parts: Vienna rectifier, DC transformer, and DC converter. Topology 2 is the topology of a DC charging pile consisting of two parts: Vienna rectifier and DC transformer. Table 10 Working efficiency of a DC charging pile with different topologies
characteristics of energy storage technology to the charging piles of electric vehicles and optimizing them in conjunction with the power grid can achieve the effect of peak-shaving and …
This paper firstly introduces the testing purpose and development history of charging pile testing devices, secondly summarizes the main functions and working principles of existing charging …
Processes 2023, 11, 1561 3 of 15 to a case study [29]; in order to systematically explain the pretreatment process, leaching process, chemical purification process, and industrial …
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 …
characteristics of energy storage technology to the charging piles of electric vehicles and optimizing them in conjunction with the power grid can achieve the effect of peak-shaving and …
In this paper, the battery energy storage technology is applied to the traditional EV (electric vehicle) charging piles to build a new EV charging pile with integrated charging,...
The energy storage charging pile achieved energy storage benefits through charging during off-peak periods and discharging during peak periods, with benefits ranging …
At the current stage, scholars have conducted extensive research on charging strategies for electric vehicles, exploring the integration of charging piles and load scheduling, …
Firstly, this paper analyzes the working principle of DC charging pile. Then, by comprehensively comparing the characteristics of the two design schemes of DC charging pile, the more …
We find that insufficient public charging piles would significantly limit the sales of electric vehicles, in particular when the public charging piles are built up for specific users or in ...
This paper firstly introduces the testing purpose and development history of charging pile testing devices, secondly summarizes the main functions and working principles of existing charging …
In addition, as concerns over energy security and climate change continue to grow, the importance of sustainable transportation is becoming increasingly prominent [8].To …
The construction of public-access electric vehicle charging piles is an important way for governments to promote electric vehicle adoption. The endogenous relationships …
The energy storage rate q sto per unit pile length is calculated using the equation below: (3) q sto = m ̇ c w T i n pile-T o u t pile / L where m ̇ is the mass flowrate of the …
In short, you must choose a charging pile that is not less than the power of the on-board charger and is compatible. Note that charging piles above 7kw require a 380V meter. …
Such a huge charging pile gap, if built into a light storage charging station, will greatly improve the "electric vehicle long-distance travel", inter-city traffic "mileage anxiety" …
Supercapacitors (or electric double-layer capacitors) are high power energy storage devices that store charge at the interface between porous carbon electrodes and an …
By utilizing the two-way flow of energy and the peak-to-valley time-of- use electricity price of the lithium battery energy storage system, i.e., via the “low-cost storage …
The energy relationship between the SC of electric vehicles (EVs), the SC of centralized energy storage, and the PV power generation is constructed to solve for the …
charging piles (OPCP) and specialized public charging piles (SPCP) according to service object for heterogeneity analysis, and further studies the impacts of different types of …