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.
The transient thermal analysis model is firstly given to evaluate the novel thermal management system for the high power fast charging pile. Results show that adding the PCM into the thermal management system limits its thermal management performance in larger air convective coefficient and higher ambient temperature.
Based on the Internet of Things technology, the energy storage charging pile management system is designed as a three-layer structure, and its system architecture is shown in Figure 9. The perception layer is energy storage charging pile equipment.
On the one hand, the energy storage charging pile interacts with the battery management system through the CAN bus to manage the whole process of charging.
The main function of the control device of the energy storage charging pile is to facilitate the user to charge the electric vehicle and to charge the energy storage battery as far as possible when the electricity price is at the valley period. In this section, the energy storage charging pile device is designed as a whole.
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.
Pulse charge-discharge experiments show that at −40 °C ambient temperature, the heated battery pack can charge or discharge at high current and offer almost 80% power. …
In this calculation, the energy storage system should have a capacity between 500 kWh to 2.5 MWh and a peak power capability up to 2 MW. Having defined the critical components of the …
During this period, the grid can provide low-power charging to the EV (0.5–0.9 s), or it can also absorb energy from the energy storage system (0.9–1.3 s). Reactive power can be switched positively or negatively, …
The lower storage temperature T ST1 of the high-temperature TES in particular has a significant influence on the round-trip efficiency. While the COP of the charging process …
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 …
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, …
Energy storage pile foundations are being developed for storing renewable energy by utilizing compressed air energy storage technology. Previous studies on isolated piles indicate that …
The simulation results showed that in a very cold condition (−30 °C), installing a coolant-based TES tank with a large storage capacity (150 L) and a high initial storage …
Changes in temperature parameters can affect contact resistances, solid-state ion diffusion coefficients, electrolyte viscosity, desolvation energy barriers, and ion insertion …
The energy and power characteristics of lithium-ion batteries deteriorate severely under cold climate conditions. The commonly used lithium-ion power batteries for …
The highest temperature increases from 89.53 °C to 110.59 °C as the ambient temperature increases from 25 °C to 45 °C, and the possibility of thermal runaway of the …
Encapsulation is one of the strategies that researchers have explored to improve the thermal performance of Thermal Energy Storage systems. Encapsulation can …
A two‐zone water storage tank with a storage temperature of 115°C is used as thermal energy storage. For discharge, an Organic Rankine Cycle (ORC) and, alternatively, a …
To improve the low-temperature charge-discharge performance of lithium-ion battery, low- temperature experiments of the charge-discharge characteristics of 35 Ah high …
Low-temperature preheating, fast charging, and vehicle-to-grid (V2G) capabilities are important factors for the further development of electric vehicles (EVs). However, for conventional two-stage chargers, the EV …
The lower storage temperature T ST1 of the high-temperature TES in particular has a significant influence on the round-trip efficiency. While the COP of the charging process increases significantly with decreasing lower …
During this period, the grid can provide low-power charging to the EV (0.5–0.9 s), or it can also absorb energy from the energy storage system (0.9–1.3 s). Reactive power …
The lowest temperature was 45.89°C, the peak temperature was 63.01°C, and the mean temperature of the chip was 57.15°C. When two L-shaped UTHPs were attached to …
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, …
Aiming at the charging demand of electric vehicles, an improved genetic algorithm is proposed to optimize the energy storage charging piles optimization scheme.