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Power Electronicsknowledge~10 mins

Grid-tied inverter concept in Power Electronics - Interactive Code Practice

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Practice - 5 Tasks
Answer the questions below
1fill in blank
easy

Complete the sentence to describe the main function of a grid-tied inverter.

Power Electronics
A grid-tied inverter converts [1] energy into AC electricity synchronized with the grid.
Drag options to blanks, or click blank then click option'
Amechanical
Bchemical
Cthermal
Dsolar
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing the energy source type.
Thinking the inverter converts AC to DC.
2fill in blank
medium

Complete the sentence to explain a key requirement for grid-tied inverters.

Power Electronics
Grid-tied inverters must [1] their output voltage and frequency with the utility grid.
Drag options to blanks, or click blank then click option'
Aignore
Bsynchronize
Cinvert
Ddisconnect
Attempts:
3 left
💡 Hint
Common Mistakes
Choosing 'ignore' or 'disconnect' which would cause unsafe operation.
Confusing 'invert' with 'synchronize'.
3fill in blank
hard

Fix the error in the description of grid-tied inverter operation.

Power Electronics
The inverter converts DC to AC and [1] power to the grid only when the grid is present.
Drag options to blanks, or click blank then click option'
Afeeds
Bgenerates
Cstores
Dblocks
Attempts:
3 left
💡 Hint
Common Mistakes
Selecting 'stores' which is incorrect as inverters do not store energy.
Choosing 'blocks' which contradicts the inverter's purpose.
4fill in blank
hard

Fill both blanks to complete the grid-tied inverter's safety feature description.

Power Electronics
Grid-tied inverters have [1] protection to stop feeding power during [2] outages.
Drag options to blanks, or click blank then click option'
Aanti-islanding
Boverload
Cgrid
Dthermal
Attempts:
3 left
💡 Hint
Common Mistakes
Confusing 'overload' or 'thermal' with the correct safety feature.
Misunderstanding what happens during grid outages.
5fill in blank
hard

Fill all three blanks to complete the dictionary that maps inverter states to descriptions.

Power Electronics
inverter_states = {'[1]': 'On', '[2]': 'Off', '[3]': 'Fault'}
Drag options to blanks, or click blank then click option'
Arunning
Bstopped
Cerror
Didle
Attempts:
3 left
💡 Hint
Common Mistakes
Using 'idle' which is not part of the given states.
Mixing up keys and values.