Advanced Power Electronics (3170906) MCQs

MCQs of Multi-level Converters

Showing 41 to 47 out of 47 Questions
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41.

How many carrier signals are required to produce PWM signals for 9 level CHB while using the level shifted multi-carrier modulation?

(a)

6
(b)

8
(c)

4
(d)

9
Answer:

Option (b)

42.

What should be the shape of the modulating signal in the Phase Sihfted Multicarrier Modulation Scheme?

(a)

Traingular
(b)

Square
(c)

Sine
(d)

Sawtooth
Answer:

Option (c)

43.

Can we do the bidirectional power flow control using the multil-level inverter concept? 

(a)

Yes
(b)

No
(c)

Maybe
Answer:

Option (a)

44.

Which topology of the multi-level inverter is mostly preferred in the reactive power compensation?

(a)

Diode Clamped Multi Level Inverter
(b)

Flying Capacitor Multi Level Inverter
(c)

Cascaded H-Bridge Multi Level Inverter
(d)

Modified - Diode Clamped Multi Level Inverter
Answer:

Option (b)

45.

In the back to back intertie connection of the multilevel inverter, which is the sequence of conversion of the parameters?

(a)

dc-ac and after that ad-dc
(b)

ac-dc and after that dc-ac
(c)

ac-dc and after that dc-dc
(d)

dc-dc and after that dc-ac
Answer:

Option (b)

46.

Which type of the multilevel inverter is the preferred in back to back intertie connection?

(a)

FCMLI
(b)

DCMLI
(c)

CHB
(d)

Modified - DCMLI
Answer:

Option (b)

47.

Adjustable Speed Drives use which of the following concept?

(a)

Only Rectification
(b)

Only Inversion
(c)

Rectification and Inversion both
(d)

Only Cycloconverter
Answer:

Option (c)

Showing 41 to 47 out of 47 Questions
2 3 4 5