Vehicle-to-grid (V2G) concept in Power Electronics - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the sentence to explain what V2G means.

Power Electronics

Vehicle-to-grid (V2G) technology allows electric vehicles to [1] energy back to the power grid.

Drag options to blanks, or click blank then click option'

Astore

Bblock

Cignore

Dsend

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'store' because vehicles do store energy, but V2G focuses on sending energy back.

V2G means electric vehicles can send energy back to the grid, helping balance electricity supply.

2fill in blank

medium

Complete the sentence to describe a benefit of V2G.

Power Electronics

One benefit of V2G is that it helps [1] the electricity grid during peak demand times.

Drag options to blanks, or click blank then click option'

Aignore

Boverload

Cstabilize

Ddisconnect

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'overload' which would make the problem worse.

V2G helps stabilize the grid by providing extra energy when demand is high.

3fill in blank

hard

Fix the error in the description of V2G operation.

Power Electronics

In V2G, electric vehicles only [1] energy from the grid and cannot return it.

Drag options to blanks, or click blank then click option'

Areceive

Bsend

Cblock

Dignore

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'send' which is what the sentence incorrectly claims they cannot do.

The error is that vehicles do not only receive energy; they can also send it back to the grid.

4fill in blank

hard

Fill both blanks to complete the V2G energy flow description.

Power Electronics

Electric vehicles [1] energy from the grid when charging and [2] energy back during high demand.

Drag options to blanks, or click blank then click option'

Areceive

Bsend

Cstore

Dblock

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the direction of energy flow for charging and discharging.

Vehicles receive energy to charge and send energy back to the grid when needed.

5fill in blank

hard

Fill all three blanks to complete the V2G dictionary comprehension example.

Power Electronics

v2g_status = { [1]: [2] for [3] in vehicles if vehicles[[3]] > 20 }

Drag options to blanks, or click blank then click option'

Avehicle_id

Bcharge_level

Dbattery

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'battery' as a key or loop variable which is undefined here.

This comprehension creates a dictionary with vehicle_id as keys and their charge_level as values, for vehicles with battery level above 20.