Three Phase Full-wave Bridge Inverters

What is the RMS value of line voltage VL?

0.8165Vs (correct)
0.6752Vs
0.7071Vs
0.7797Vs

What is the RMS value of phase voltage Vp in 180° conduction mode?

0.4082Vs (correct)
0.3898Vs
0.4714Vs
0.4502Vs

What is the RMS value of fundamental line voltage VL1 in 180° conduction mode?

0.6752Vs (correct)
0.8165Vs
0.7071Vs
0.7797Vs

What is the RMS value of fundamental phase voltage Vp1 in 180° conduction mode?

0.3898Vs (C) Signup and view all the answers

What is the limitation of 180° conduction mode inverter?

There is no provision of commutation time. (C) Signup and view all the answers

What is the advantage of 120° mode inverter over 180° conduction mode inverter?

There is provision of commutation time. (A) Signup and view all the answers

How many switches are conducting in 180° conduction mode?

Three switches (B) Signup and view all the answers

What is the potential of the third terminal in 120° mode inverter?

Defined by the nature of load. (D) Signup and view all the answers

What is the displacement between the operation of each inverter leg in a 3-phase full-wave bridge inverter?

120° (B) Signup and view all the answers

How many switches are conducting in a 180° conduction mode of a 3-phase full-wave bridge inverter?

Three (C) Signup and view all the answers

What is the formula to calculate the rms value of line voltage VL?

VL = 2/3 VS (D) Signup and view all the answers

What is the expression for the instantaneous line voltage in a 3-phase full-wave bridge inverter?

vl = 4VS / π cos(nωt + φ) (C) Signup and view all the answers

What is the value of the Total Harmonic Distortion (THD) in a 3-phase full-wave bridge inverter?

0.311 (B) Signup and view all the answers

What is the formula to calculate the rms value of the fundamental component of the line voltage?

VO1 = 4VS / π (D) Signup and view all the answers

How many power switches are used in a 3-phase full-wave bridge inverter?

6 (C) Signup and view all the answers

What is the operation mode of a 3-phase full-wave bridge inverter discussed in this chapter?

180° conduction mode (B) Signup and view all the answers

What is the most efficient method of controlling the output voltage of a single-phase inverter?

By Pulse Width Modulation (PWM) control (B) Signup and view all the answers

What is the advantage of using PWM control in a single-phase inverter?

It minimizes the lower order harmonics (C) Signup and view all the answers

What is the disadvantage of using PWM control in a single-phase inverter?

It includes more complex control circuits for the switches (A) Signup and view all the answers

What determines the fundamental frequency of the output voltage in a single-phase inverter using PWM control?

The frequency of the carrier wave (A) Signup and view all the answers

What is the range of pulse width variation in a single-phase inverter using Single Pulse Width Modulation (PWM) control?

0 to 180° (C) Signup and view all the answers

What is the range of pulse width variation in a single-phase inverter using Uniform Pulse Width Modulation (UPWM) control?

0 to (180°/P) (A) Signup and view all the answers

What is the purpose of comparing the rectangular reference signal with the triangle carrier wave in a single-phase inverter using PWM control?

To generate the gate signals (C) Signup and view all the answers

What is the name of the technique used to control the output voltage of a single-phase inverter by varying the pulse width of the gate signal?

Pulse Width Modulation (PWM) control (B) Signup and view all the answers