Load management is a method of distributing workloads across a computing system that aims to optimize system resource usage, maximize output, and minimize response time while avoiding overloading any one node. In short, load balancing is to balance the resource load by distributing requests to multiple service nodes, thereby improving the overall performance of the system.
What is load of EV charger?
The EV chargers load refers to the power capacity required by the EV chargers under the working state and keep electrical loads under infrastructure capacity. During the use of the EV chargers, the power supply of the EV chargers needs to provide electric energy to the electric vehicle, so the corresponding electricity must provide the power supply for the EV chargers.
What is load management of EV charger?
EV charging load management is an advanced energy management system for EV charging in commercial and apartment buildings. As EV usage changes throughout the day, load balancing helps reduce strain on the building infrastructure by managing the EV’s load. By actively monitoring site and charger load in real time, the system ensures that all EVs receive sufficient charging power while maintaining the highest degree of efficiency.
Load management is an important indicator to measure and balance the working efficiency of EV chargers. It reduces energy usage during peak demand periods, reducing the burden on the grid to optimize EV charging, which plays a vital role in EV charging industry.
How does EV charging load management work?
Load management system instructs EV chargers to deliver the right amount of energy. They offset peak demand at the charging site level. The system will constantly communicate with the electricity infrastructure, charge points, and charging EVs.
EV charging load balancing can be static (based on the time or day) or dynamic, where it adjusts energy consumption in real time and redirects it to areas of greatest need. EV load balancing can react to changes, such as vehicle arrivals and peak demand, or to requirements known in advance, such as overnight charging requirements for an EV fleet.
How does EV load management provide power?
There are two ways in which load-sharing EV chargers will provide a steady stream of electricity to the stations via local load management: with Sino EV charger, this is through equally distributed or first in, first charged.
With equally distributed load sharing, EV chargers will get the same amount of electricity depending on how many amps are available and how many stations are being used. Let’s take an example of an electrical panel that provides 100 amps and four 40-amp chargers, each charger will distribute 25 amps, providing an even load between the four. If one were to leave, each would begin distributing 33.3 amps.
With first in, first charged load sharing, distribution of electricity to the EV chargers would depend on when charging began. The first of the four charging stations would charge its electric vehicle at full capacity while the second vehicle would get as much electricity as it could with what was still available. If both vehicles are charging at full capacity with electricity to spare, that spare electricity would charge the third vehicle. Once the first vehicle leaves, the electrical load it was using would move to the third vehicle and any spare electricity would begin to charge the fourth vehicle.
Advantages of EV charging load management:
First, It can connect multiple charging stations to a single circuit which helps you avoid expensive installation costs or upgrades. With other stations that don’t provide local load management, you may need to install additional power sources or increase the amperage available to your electrical panel. This process is tedious and costly as it involves digging ditches, laying new wiring, adding to or updating the electrical panel, etc.. Being able to utilize what is already available saves you time and money.
Second, It can help you set up your chargers to provide specific amounts of electricity during peak and off-peak hours. Whenever you use electricity during peak hours, typically from 8 a.m. to 10 p.m. the utility company is more likely to charge a higher rate than the electricity used during off-peak hours like 10 p.m. to 8 a.m.. Electric vehicle load management systems help you to control on how and when the stations are used to maximize savings.
Which type of load management would you like?
This mainly depends on how the chargers will be used and where they are located. For single and multi-use homes that only need one or two AC EV chargers, local load management may not be needed as the circuit breaker can likely handle the output. If you are a fleet manager, you may want to charge all of the vehicles at once over a longer period of time, so you can choose equal distribution. Meanwhile, If you are an apartment manager would want tenants to finish charging quicker and move their vehicle out of the way so more EVs can be charged, thereby choosing first in, first charged.
How do Sino EV Chargers communicate load management system?
Our Sino EV charging stations can communicate with each other via either Wi-Fi or Open Charge Point Protocol (OCPP) network services.
Conclusion:
In short, EV chargers load management is a vital factor that must be considered in the electric vehicle industry. Reasonable EV chargers load management can ensure the working efficiency, safety and stability of EV chargers. With the increasing popularity of electric vehicles today, strengthening the management of EV chargers loads will have an important role in promoting the entire industry.
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