Charger Monitoring Device: The Intelligent Choice for EV Charging Stations

An increasing number of people choose to adopt electric vehicles, thus leading to a rising of the demand for electric vehicle (EV) charging infrastructure. In order to manage charging stations more effectively, improve charging efficiency, and reduce operational costs, charger monitoring device has emerged. This article will delve into the definition, operation, and advantages of this type of device with a real case.

What is the Charger Monitoring Device?

Charger Monitoring Device is an intelligent system designed to monitor and manage multiple EV chargers. Its primary function is to monitor charging currents and redistribute them based on electricity’s capacity, ensuring that the charging station can accommodate multiple EV chargers simultaneously without compromising stability. This technology is predominantly applied in commercial scenarios, such as parking lots, workplaces, and hospitality venues like malls, coffee shops, and restaurants.

How Does the Charger Monitoring Device Work?

A. Independent Power Grids

The charging station connects to a dedicated power grid where all power is allocated to the charging station’s use. In this scenario, the available power for charging remains constant. When EV chargers are connected and initiate charging, the monitoring device detects their currents and redistributes them as the number of chargers increases, preventing grid overload. This method ensures the stability and reliability of the charging station.

B. Integration into Other Power Grids

Alternatively, charging stations can also integrate into other power grids, such as corporate power grids. In this case, the total current for charging is dynamically changing. For example, when the enterprise activates more loads, the power allocated to the charging station decreases, and it increases when these loads stop working. In such cases, it is advisable to incorporate dynamic load balancing (DLB) into the system, monitoring power consumption of the enterprise and transmit the information to the charger monitoring device, enabling charging currents redistribution based on dynamically changing currents and avoiding grid overload. Without the application of DLB, it is necessary to set the maximum current available for charging stations, which may lead to underutilization of grid power resources or overload due to excessive application.

What are the Advantages of Installing Charger Monitoring Device?

1.Reduced Operational Costs, Efficient Resource Utilization
Charger monitoring device, through its intelligent management capabilities, optimizes the power distribution of charging stations to minimize energy wastage. By real-time monitoring of EV chargers, the equipment intelligently adjusts charging currents, ensuring each charger operates optimally, thereby reducing energy costs.
2.Ensured Grid Stability, Enhanced System Reliability
The activation of multiple EV chargers can burden the grid, especially during peak periods. Charger monitoring device, by monitoring in real-time and rationalizing current distribution, effectively prevents grid overload, maintaining grid stability and reliability. This is crucial for the healthy operation of power systems and reducing the risk of outages, especially in areas with stringent power stability requirements like city centers.

3.Improved Charging Efficiency, Enhanced User Satisfaction
As the number of electric vehicles increases, congestion at charging stations becomes more severe. Through installing charger monitoring device, charging stations can more effectively meet the demands of multiple EV chargers simultaneously, reducing user waiting times. This not only enhances the overall efficiency of the charging station but also improves user experience and satisfaction.

Beny’s Intelligent Solution with a Case Study

Beny is a company dedicated to providing intelligent electric vehicle charging solutions. At its corporate headquarters, a charging monitoring system has been successfully installed, monitoring 8 EV chargers. The following is an analysis based on this case:

1.Overview
The system mainly consists of 8 EV chargers and 1 charger monitoring device, with one charger having a dual-socket design, meaning the system can simultaneously accommodate charging for 9 electric vehicles.

2.Operation
In a three-phase system with a total current of 60A per phase, taking phase A as an example, when 2 EV chargers are connected, the charging current for each is 30A. Upon detection of a third working charger, the monitoring device adjusts the charging current, gradually reducing the charging current for all three to 20A, not exceeding the system load. Users can also start or stop charging through the control panel, view real-time charging currents, power consumption, and fault status for each charging point.

3.Advantages
Beny’s charging monitoring device allows real-time monitoring of each charger and uses intelligent optimization algorithms to redistribute current, ensuring each charger is fully utilized. It also ensures the system does not operate in overload, maintaining stability. Real-time data from each charger also assists administrators in energy management.

For further reference, you can also watch the following video:

In summary, charger monitoring device plays a crucial role in EV charging stations. Through real-time monitoring and dynamic current distribution, these devices not only improve charging efficiency and reduce operational costs but also ensure grid stability. Beny’s solution is a successful case, demonstrating advantages and potential of this technology. In the rapidly evolving electric vehicle industry, Beny continues to drive the pivotal role of charger monitoring device in intelligent and sustainable development of charging infrastructure.