Smart EV Charging: Charging Load Management | EN Plus

Smart EV Charging: Charging Load Management

Last Updated: 29/02/2024

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Smart EV Charging: Charging Load Management

Using Dynamic Load Management, Smart Charging system safely balances energy consumption between your electric vehicle, charging station and other devices on site. A smart energy meter is mounted on the power distribution cabinet and is used to measure the power consumption of the building, and a reserve is allocated to the charging station to charge the electric vehicle.
When the real-time energy consumption of a building is high, the charging station performs charging slowly or temporary stops charging, and when the building’s electricity consumption decreases, the charging station increases the charging capacity. Thanks to the intelligent system, you will optimally load the power input of your building, which will save you the cost of increasing the input. With the additional use of the time schedule function, you will perform charging when the price of electricity is at its lowest.
ev charging load management

For Single Charger

While the total power consumption is close to the upper limit, the CT(current monitoring device) will timely reduce the power to ensure that the total power consumption does not exceed the upper limit.
ev charging management for single charger

For Multi-Chargers

Dynamic Load Management involves adding current monitoring devices (Load Balance Controller) and setting the maximum load allowed for power distribution at the operating station. The real-time monitoring device checks the station’s total power consumption and flexibly provides charging services to EVs through the most effective power distribution method.
ev charging management for multi charger

Average Power Distribution (APD)

200kW total distribution capacity=10x15kW chargers+ 50 kW other electric power capacity in a commercial building.
average power distribution

Full-Load Priority (FLP)

200kW total distribution capacity= 50 kW other electric power capacity in a commercial building+6x22kW chargers +18kW charger

Timetable-based Dynamic Load Management

Timetable-based load management is a method of distributing available charging capacity more scientifically and reasonably based on the needs of vehicles (and even the power grid) on top of dynamic load management.
It dynamically monitors the currently available power and allocates charging power according to the priority of the vehicle’s travel schedule and the SoC state of the vehicle’s battery, ensuring that each vehicle is fully charged when needed.
This method is suitable for charge stations that share power distribution capacity with other electrical devices and have chargers of different types and power levels. Priority/time-based charging is ideal for fleet operation.

Cloud Load Management

On Site Solution

The AP mode can configure individual chargers and set the maximum charging current, optimizing charging capacity and preventing overload protection.

Network Solution

The Evchargo cloud platform can be used for network-based solutions for charge point management. The scalable software can optimize charge point operation, improve availability, and enable accurate charging billing through the OCPP protocol. A rule-based load management system can distribute available connection loads to all charge points, enabling on-demand charging for EVs and optimizing charging capacity operation and overload protection for building facilities.
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