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bridge oad DC DC Vload DC For a single-phase DC-AC inverter with an RL load at the output. It is switching using the bi...
For the full-bridge inverter in Fig. 6, the switching frequency f, is 1,500 Hz. The DC voltage, V...
For the full-bridge inverter in Fig. 6, the switching frequency f, is 1,500 Hz. The DC voltage, V, is 600 V. Output voltage is sinusoidal voltage with a frequency equal to 60 Hz. The load is connected between leg A and B 5. a. Prove that the peak voltage of the fundamental frequency component, (Vo)m (V). b. Find the angle between the phasors vo and eafor-0.8, P-1,000 W and Q-500 w peak a Lla A + B+ VO B+ L=...
Q1‐ A single‐phase half‐bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a dc source of 300V, and is operated at a frequency of 50Hz using square‐wave m...
Q1‐ A single‐phase half‐bridge inverter is used to power a
purely inductive load of 100mH. The inverter is supplied from a dc
source of 300V, and is operated at a frequency of 50Hz using
square‐wave modulation.
a) Determine the values of the fundamental, 3rd, 5th and 7th
harmonic load current components
b) Determine the load current THD value.
Q1- A single-phase half-bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a de...
A single-phase full-bridge inverter as shown in Fig. 6.3(a) in the textbook has Vs = 98...
A single-phase full-bridge inverter as shown in Fig. 6.3(a) in the textbook has Vs = 98 V (DC), a load resistance of R-3 Ω, an output frequency off, = 2 kHz, and a modulation index of M = 0.9. It uses an uniform PWM as shown in Fig. 6.12(a) and has 5 pulses per half-cycle. Determine (a) the rms output voltage Vo, (b) the output (rms) power Po, (c) the average input current Is, (d) average current through each transistor...
Problem 3: Sinusoidal PWM or Six-Step Control of three-phase DC-AC Inverter (45 Points) Design a three-phase...
Problem 3: Sinusoidal PWM or Six-Step Control of three-phase DC-AC Inverter (45 Points) Design a three-phase inverter circuit for a solid oxide fuel cell, whose output voltage changes from 400 Vdc to 600 Vdc. Sinusoidal PWM (SPWM) A. If sinusoidal PWM is used to control the inverter, to obtain a three-phase 240 Vac (line- line RMS value) at 60 Hz, what is the inverter's modulation index (ma) range? (5points) B. Based on part A: Assume the fuel cell's output voltage...
Example 1: Switch-mode inverter (one phase-leg, half bridge) A general analysis of the switch-mod...
Example 1: Switch-mode inverter (one phase-leg, half bridge) A general analysis of the switch-mode inverter (shown in the figure below) is to be done. The switching frequency f, which is also the frequency of the triangular signal is 1450 Hz. The DC voltage, Vd, is 600 V. Output voltage is sinusoidal voltage with a frequency equal to 50 Hz. The load is connected between the inverter leg A and the dc voltage midpoint o. A+ A+ A V Find the...
A single-phase H-bridge topology below is operated with the input dc voltage Vdc=200 V, modulation index,...
A single-phase H-bridge topology below is operated with the input dc voltage Vdc=200 V, modulation index, ma=0.6 and switching frequency fs=1950 Hz. The fundamental frequency of the generated AC voltage is 50 Hz. a) Calculate the rms value of fundamental component b) Calculate the rms values of most significant harmonics (with at least %10 of amplitude of the biggest harmonics) for the pole voltage v10 indicated on the inverter c) Calculate the rms voltage value for the fundamental and for...
QUESTION 2 (Total 12.5 Marks) PWM switching scheme is used for a single phase inverter with m 36 and mo0.7 and Vd 230 V...
QUESTION 2 (Total 12.5 Marks) PWM switching scheme is used for a single phase inverter with m 36 and mo0.7 and Vd 230 V (see the table in the formula sheet). Calculate the RMS values of the fundamental voltage and mf, my+2, 2m 1 harmonics (stating any approximation) if (a) a bipolar modulation scheme is used, (6.5 marks) (b) a unipolar modulation scheme is used. (6 marks) S1 S3 Load S4 Circuit diagram
QUESTION 2 (Total 12.5 Marks) PWM switching...
D Question 2 10 pts A three phase full-bridge rectifier draws 12-kW from a power supply that has 150-V phase-to-phase voltage. The power factor is 0.77. What is the maximum (peak) value of the cur...
D Question 2 10 pts A three phase full-bridge rectifier draws 12-kW from a power supply that has 150-V phase-to-phase voltage. The power factor is 0.77. What is the maximum (peak) value of the current delivered by the supply? 10 pts DI Question 3 A full bridge, square wave inverter supplies an RL load with R-7-Ohm and L-58-mH. The DC voltage is 90-V and the output waveform frequency is 60-Hz. What is the magnitude of the third harmonic of the...
The single-phase full-bridge inverter shown in Figure 1 below is required to have an output voltage...
The single-phase full-bridge inverter shown in Figure 1 below is
required to have an output voltage waveform such as is shown in
Figure 2 below, in which δis the time during the
positive and negative half-cycles in which load current
flows. For what value of δ (in degrees) will
the fifth harmonic of load current be eliminated?
QUESTION 1 The single-phase full-bridge inverter shown in Figure 1 below is required to have an output voltage waveform such as is shown in Figure...
Consider a 3-phase inverter with a delta-connected load operating from a 150 V DC input voltage....
Consider a 3-phase inverter with a delta-connected load operating from a 150 V DC input voltage. The AC load consists of 3 identical impedances with R = 6 Ω and L = 30 mH and a frequency of 60 hz. a. Determine the RMS line voltage VAB. b. Obtain mathematical expressions for each phase of the load currents, IAB, IBC, and ICA.
For the full-bridge inverter in Fig. 6, the switching frequency f, is 1,500 Hz. The DC voltage, V, is 600 V. Output voltage is sinusoidal voltage with a frequency equal to 60 Hz. The load is connected between leg A and B 5. a. Prove that the peak voltage of the fundamental frequency component, (Vo)m (V). b. Find the angle between the phasors vo and eafor-0.8, P-1,000 W and Q-500 w peak a Lla A + B+ VO B+ L=...
Q1‐ A single‐phase half‐bridge inverter is used to power a
purely inductive load of 100mH. The inverter is supplied from a dc
source of 300V, and is operated at a frequency of 50Hz using
square‐wave modulation.
a) Determine the values of the fundamental, 3rd, 5th and 7th
harmonic load current components
b) Determine the load current THD value.
Q1- A single-phase half-bridge inverter is used to power a purely inductive load of 100mH. The inverter is supplied from a de...
A single-phase full-bridge inverter as shown in Fig. 6.3(a) in the textbook has Vs = 98 V (DC), a load resistance of R-3 Ω, an output frequency off, = 2 kHz, and a modulation index of M = 0.9. It uses an uniform PWM as shown in Fig. 6.12(a) and has 5 pulses per half-cycle. Determine (a) the rms output voltage Vo, (b) the output (rms) power Po, (c) the average input current Is, (d) average current through each transistor...
Problem 3: Sinusoidal PWM or Six-Step Control of three-phase DC-AC Inverter (45 Points) Design a three-phase inverter circuit for a solid oxide fuel cell, whose output voltage changes from 400 Vdc to 600 Vdc. Sinusoidal PWM (SPWM) A. If sinusoidal PWM is used to control the inverter, to obtain a three-phase 240 Vac (line- line RMS value) at 60 Hz, what is the inverter's modulation index (ma) range? (5points) B. Based on part A: Assume the fuel cell's output voltage...
Example 1: Switch-mode inverter (one phase-leg, half bridge) A general analysis of the switch-mode inverter (shown in the figure below) is to be done. The switching frequency f, which is also the frequency of the triangular signal is 1450 Hz. The DC voltage, Vd, is 600 V. Output voltage is sinusoidal voltage with a frequency equal to 50 Hz. The load is connected between the inverter leg A and the dc voltage midpoint o. A+ A+ A V Find the...
A single-phase H-bridge topology below is operated with the input dc voltage Vdc=200 V, modulation index, ma=0.6 and switching frequency fs=1950 Hz. The fundamental frequency of the generated AC voltage is 50 Hz. a) Calculate the rms value of fundamental component b) Calculate the rms values of most significant harmonics (with at least %10 of amplitude of the biggest harmonics) for the pole voltage v10 indicated on the inverter c) Calculate the rms voltage value for the fundamental and for...
QUESTION 2 (Total 12.5 Marks) PWM switching scheme is used for a single phase inverter with m 36 and mo0.7 and Vd 230 V (see the table in the formula sheet). Calculate the RMS values of the fundamental voltage and mf, my+2, 2m 1 harmonics (stating any approximation) if (a) a bipolar modulation scheme is used, (6.5 marks) (b) a unipolar modulation scheme is used. (6 marks) S1 S3 Load S4 Circuit diagram
QUESTION 2 (Total 12.5 Marks) PWM switching...
D Question 2 10 pts A three phase full-bridge rectifier draws 12-kW from a power supply that has 150-V phase-to-phase voltage. The power factor is 0.77. What is the maximum (peak) value of the current delivered by the supply? 10 pts DI Question 3 A full bridge, square wave inverter supplies an RL load with R-7-Ohm and L-58-mH. The DC voltage is 90-V and the output waveform frequency is 60-Hz. What is the magnitude of the third harmonic of the...
The single-phase full-bridge inverter shown in Figure 1 below is
required to have an output voltage waveform such as is shown in
Figure 2 below, in which δis the time during the
positive and negative half-cycles in which load current
flows. For what value of δ (in degrees) will
the fifth harmonic of load current be eliminated?
QUESTION 1 The single-phase full-bridge inverter shown in Figure 1 below is required to have an output voltage waveform such as is shown in Figure...
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