Wireless Dynamic Load Balancing EV Charger

When Bluesky’s EV charger is equipped with a wireless dynamic load balancing (DLB),

what is its function?

First of all, there are many application scenarios for Bluesky EV chargers, such as residential parking spaces, community parking lots, hotel parking lots, shopping mall parking lots, and so on.

Take a residence as an example. There are many electrical appliances in the residence, such as refrigerators, air conditioners, electric fans, etc. Bluesky AC EV charger is also a household appliance. If the EV charger takes up most of the current, normal life at home will not be smooth.

But when the EV charger is configured with the DLB function, the current will be used by the home appliances first,

the residual current will be used by the electric vehicle charger;

when the home appliances are not in use, the EV charger can fully charge them.

In this way, we can not only live normally but also charge our cars properly, which can serve multiple purposes.

How is the DLB function realized?

The distribution box of the total power supply is the current sampling point P1, the total current sampling point of other electrical appliances is P2, and P3 is the maximum current that the Bluesky EV charger can use, then: P3=P1-P2.

Wireless DLB connection method

Compared with the traditional DLB with a wired connection, it requires a lot of wire connections and additional electric meters, which is expensive and cumbersome to operate.

Due to the above-mentioned troubles, Bluesky provides Wireless DLB, which is based on the Lora protocol for connection.


Wireless DLB connection method

one main control board corresponding to one EV charger, or one-to-many.

Its advantages are: wireless, no additional electric meter, long-distance connection.

Its disadvantage is: 1-to-many, will be more expensive in the case of controlling multiple EV chargers.

As shown in the following figure, the main control board of the wireless DLB,

connect the control board to each Blue Sky electric vehicle charger through 485 to the ammeter of the main power supply, forming a loop.

Wireless DLB connection

How to connect the wireless dynamic load balancing(DLB) control main box specifically?

Please see the connection steps in the figure below

load balnacing

1. First, connect three sets of CT connecting wires to the wireless DLB control main box sockets separately.

Wireless DLB connection 1

After L1, L2, and L3 are connected, as shown in the figure below:

Wireless DLB connection 2

Before installing into the distribution box, the power supply must be cut off, pay attention to the safety of electricity use!!!

Wireless DLB connection 3

2.Install the wireless DLB control main box in a suitable position in the distribution box. (The wireless DLB control main box comes with magnetic screws that can be directly attached to the metal base plate)

Wireless DLB connection 4

3. Put each CT on the live wires L1, L2, and L3 of the main power supply, as shown in the figure below.

Wireless DLB connection 5

4.Install the antenna (The antenna comes with magnetic screws that can be directly attached to the metal plate),

pass the cable through the distribution box, and connect with the wireless DLB control main box.

Wireless DLB connection 6

Wireless DLB connection 6

5.connect the power cord of the wireless DLB main control box, 220V input is fine.

Wireless DLB connection 7

Wireless DLB connection 8

After installation is complete and everything is checked to be normal, turn on the power switch.

How do you see that the DLB function is enabled?

After powering on, the blue indicates light on the wireless DLB main control box flashes, indicating normal operation.

Wireless DLB connection 9

Wireless DLB is based on LORA communication, users can install it in any desired location without affecting its function, especially shops and apartment buildings, etc. As shown in the steps above, the installation of Wireless dynamic load balancing (DLB) is also very simple, come and try it out!

This Wireless is based on the customized needs of European customers, which is also the biggest advantage of Bluesky. Bluesky provides OEM services, whether it is software or hardware, whether it is function realization or appearance display, as long as you can describe its principle or provide a Schematic diagram, Bluesky’s software and hardware engineering team can realize it for you.


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