Three-phase inverter topology in Power Electronics - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to name the basic components of a three-phase inverter.

Power Electronics

A three-phase inverter typically consists of six [1] switches arranged in three legs.

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

Ainductor

Bresistor

Ccapacitor

Dtransistor

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing passive components like resistors or capacitors with switching devices.

The three-phase inverter uses six transistor switches to convert DC to AC in three phases.

2fill in blank

medium

Complete the code to describe the output phases of a three-phase inverter.

Power Electronics

The inverter outputs three AC voltages that are 120 degrees [1] from each other.

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

Ashifted

Bout of phase

Caligned

Din phase

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'in phase' which means no phase difference.

The three output voltages are shifted by 120 degrees to create balanced three-phase power.

3fill in blank

hard

Fix the error in the statement about the switching devices used in a three-phase inverter.

Power Electronics

A three-phase inverter uses six [1] diodes to control the output voltage.

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

Aswitching

Bpower

Csignal

Drectifier

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing diodes with switching transistors.

The correct term is 'switching' devices, such as IGBTs or MOSFETs, not just diodes.

4fill in blank

hard

Fill both blanks to complete the description of the inverter's legs and their connections.

Power Electronics

Each leg of the inverter has two [1] connected in series between the positive and negative [2] terminals.

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

Aswitches

Bresistors

CDC

DAC

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up AC and DC terminals.

Each leg has two switches connected between the positive and negative DC terminals to convert DC to AC.

5fill in blank

hard

Fill all three blanks to complete the dictionary comprehension describing phase voltages.

Power Electronics

phase_voltages = { [1]: voltage_[2] for [3] in ['A', 'B', 'C']}

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

Aphase

Dvoltage

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'voltage' as key or loop variable which is incorrect.

This comprehension creates a dictionary with keys as phase names and values as their voltages.