Audi, along with companions, performed a analysis undertaking on grid-optimized charging of electrical automobiles, which has potential to assist keep away from the blackouts.

It makes use of a communication layer between the charging stations and the grid operator, which might request to cease/postpone charging in peak demand intervals. Since some EVs, together with the e-tron, can cost at 11 kW or 22 kW, a number of automobiles would possibly trigger a big pressure on the grid (or aid when pause).

In principle, the dynamic administration ought to enable to maintain demand inside the limits of present infrastructure, stopping grid overload. As soon as the state of affairs is again to regular, the charging session will resume.

“As a part of a analysis undertaking, Audi collaborated with GISA and different companions to simulate an overload state of affairs within the native energy grid: a number of electrical automobiles charging concurrently and with excessive energy on a road provided by an area community transformer.”

The primary factor is the sensible meter gateway (SMGW), which communicates with the grid operator’s knowledge heart, reporting the ability degree worth.

Audi grid-optimized charging

“The SMGW establishes a extremely safe knowledge connection between the home and the grid operator through an authorized IT backend. All essential data and management indicators are transmitted in a focused method – both to the house power administration system (HEMS) or on to the charging system join that Audi affords as an choice.”

Based on Audi, its electrical automobiles are prepared for implementation of such a system, offering extra knowledge concerning the desired time of departure.

“Dynamic administration of the charging process is achieved by means of focused communication between the electrical automobile and the grid operator. In observe, it will imply delayed charging, considering the specified time of departure and the precise load within the energy grid.”

“Within the medium time period, the brand new networking know-how will enable the charging capability, charging time, and charging length to be managed for every automobile.”

Whereas the general idea is attention-grabbing, we aren’t certain whether or not it is the proper factor to arrange a communication between the automobile and the grid, quite than solely between the charging station and the grid.

The delayed charging is feasible now and can be realized proper after the ability comes as much as the charging station. There isn’t any actually need to complicate the system and mix the delayed charging with the grid overload. A easy ON/OFF characteristic (or energy restrict in % / kW) could be sufficient.

If the grid operators want to know the anticipated energy consumption sooner or later (because of this they’re asking concerning the desired time of departure), they’ll merely analyze the previous energy consumption in related earlier intervals.