About With energy storage battery charging gun
The three PWM rectifiers, respectively, adopt the control strategy of power grid balance, the control strategy of suppressing AC negative sequence current and the control strategy of suppressing DC-side voltage harmonics. Two ends of the DC bus of the three PWM rectifiers are, respectively, connected with 20 Ω.
As shown in Fig. 2, a single DC charging unit consists of three PWM rectifiers and three DC converters. The output terminals of the three DC converters are connected in parallel to charge the battery of the electric vehicle.
The main components of the DC charger cabinet include: controller, man–machine components, charging modules, lightning protector, leakage.
Figure 12shows the simulation model and waveforms for testing the operation of a DC charger with two charging units. The DC charging unit 1.
Figures 13 and 14are experimental waveform of constant current charging with resistance load for single charging unit of DC charger. In.
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6 FAQs about [With energy storage battery charging gun]
What is the maximum charging power of a charging gun?
The maximum charging power of each charging unit and gun is 60 kW. When charging the batteries of two electric vehicles at the same time, charging gun 1 and charging gun 2 work simultaneously and independently, and the maximum charging power of both charging guns is 60 kW, the maximum charging power of the entire DC charger is 120 kW.
How many kW can a battery charger charge?
It can charge the battery of an electric vehicle with a single gun; the maximum charging power is 60 kW. It can also charge the batteries of two electric vehicles with two guns at the same time; the maximum charging power is 120 kW. Therefore, the utilization rate of the charger can be improved.
How does a 120 kW DC charger work?
Working process of a 120-kW electric vehicle DC charger with two charging guns: When charging the batteries of one electric vehicle, the DC charger can use charging gun 1 or charging gun 2. The maximum charging power of each charging unit and gun is 60 kW.
Can a 120 kW electric vehicle charge with two charging guns?
In this paper, a simulation model of a 120-kW electric vehicle DC charger with two charging guns is built in MATLAB; the feasibility of the DC charger and the effectiveness of the control strategy of the charging unit are verified through simulation. In PWM rectifier, the input voltage is AC voltage with amplitude of 380 V and frequency of 50 Hz.
What is the state of charge of a battery?
When charging begins, the state of charging (SOC) of the battery is 59%, the charging current climbs rapidly to 115.5A for fast charging, and the DC output voltage increases.
What is the input power of a battery charger?
The input power of the charger is three-phase five wire AC 380 V, with integrated power factor correction function. The charger adopts modular design internally, and multiple modules work in parallel. The operation interface can display the charging steps and working status of the whole charging process.
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