Podcast
Questions and Answers
What is the primary function of a DC to AC inverter?
What is the primary function of a DC to AC inverter?
- Switching the AC input voltage in a pre-determined sequence
- Generating harmonics modulation
- Converting DC to AC power (correct)
- Converting AC to DC power
Where is the DC link voltage varied in a voltage source inverter (VSI)?
Where is the DC link voltage varied in a voltage source inverter (VSI)?
- By using a DC-to-DC converter or controlled rectifier (correct)
- By varying the frequency of output voltage
- By changing the load current
- By using a controlled rectifier
What is the advantage of a variable DC link inverter?
What is the advantage of a variable DC link inverter?
- Simple waveform generation (correct)
- Higher input voltage
- Lower frequency
- Extra conversion stage
What is the primary role of PWM in a VSI with fixed DC link?
What is the primary role of PWM in a VSI with fixed DC link?
Which type of inverter generates AC voltage by switching the DC input voltage in a pre-determined sequence?
Which type of inverter generates AC voltage by switching the DC input voltage in a pre-determined sequence?
What is the primary purpose of a voltage source inverter (VSI) with variable DC link?
What is the primary purpose of a voltage source inverter (VSI) with variable DC link?
What is a disadvantage of a variable DC link inverter?
What is a disadvantage of a variable DC link inverter?
In a voltage source inverter (VSI) with fixed DC link, what is the role of the switch turned ON and OFF with PWM pattern?
In a voltage source inverter (VSI) with fixed DC link, what is the role of the switch turned ON and OFF with PWM pattern?
What is the primary function of a current source inverter (CSI)?
What is the primary function of a current source inverter (CSI)?
Where is the DC link voltage varied in a voltage source inverter (VSI) with fixed DC link?
Where is the DC link voltage varied in a voltage source inverter (VSI) with fixed DC link?
Flashcards are hidden until you start studying
Study Notes
- DC to AC Conversion (Inverter) is a power converter that converts DC power to AC power by switching the DC input voltage or current in a pre-determined sequence.
- Applications include un-interruptible power supply (UPS), industrial motor drives, traction, and High Voltage Direct Current (HVDC) systems.
- Voltage Source Inverter (VSI) is a type of inverter where the DC link voltage is varied by a DC-to-DC converter or controlled rectifier to generate a square wave output voltage. The output voltage amplitude can be varied by changing the DC link voltage, and the frequency can be changed by varying the frequency of the square wave pulses.
- Disadvantages of VSI with variable DC link include the need for an extra conversion stage and poor harmonics.
- Fixed DC link inverter, also known as a Voltage Source Converter (VSC), keeps the DC voltage constant by turning the switch ON and OFF with a Pulse Width Modulation (PWM) pattern.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
