Variable frequency electronic generation of sinusoids first requires the grid AC to be rectified into DC....
- Variable frequency electronic generation of sinusoids first
requires the grid AC to be rectified into DC. Next the DC is
converted to high f AC by an inverter circuit. The entire process
is at 95% efficiency. Below you are required to refresh your
understanding of AC to DC rectifiers. Diode rectifiers are
non-linear loads so grid power factor and harmonic generation are
again a consideration. The total power factor is composed of two
parts: the distortion power factor due to harmonics and the
displacement power factor caused by the phase shift between the
grid current and grid voltage
- Explain single phase 1/2 wave rectification to a pure resistive load and give equations for the effective DC rectified voltage and the voltage ripple on the DC. Give equations for ripple around the DC
- Explain single phase full wave rectification to a pure resistive load and give equations for the effective DC rectified voltage and the voltage ripple on the DC. Give equations for ripple around the DC
Homework Answers
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Variable frequency electronic generation of sinusoids first
requires the grid AC to be rectified into DC....
In an AC to DC rectifier circuit, the output DC signal of the rectified wave was...
In an AC to DC rectifier circuit, the output DC signal of the rectified wave was measured to be VDC= (9.1±0.6)V and its ripple voltage was measured to be Vripple=(0.14±0.03) mV. What is the uncertainty on the quality factor of the rectifier? (Report your final value to 2 sig figs)
Styles AC Bus Local Loads T: OC Bus PV Generating DC/AC Station Zline Local Power Grid...
Styles AC Bus Local Loads T: OC Bus PV Generating DC/AC Station Zline Local Power Grid Inverter T1 T2 Figure Q2 In the microgrid in figure Q2, a solar PV station and the local power grid supply a series of local loads The PV generating station is rated at 2 MW and is operating at unity power factor. The PV station internal impedance is purely resistive equal to 50% based on its own rating of 2 MVA. The inverter DC...
QUESTION 8 When connecting any electrical AC generator to an electrical grid, the frequency, phase, and...
QUESTION 8 When connecting any electrical AC generator to an electrical grid, the frequency, phase, and voltage of the generator's final electrical output must match that of the grid. ○True ○ False QUESTION 9 As discussed in class, Inverters convert AC power to DC and Rectifiers convert DC to AC. Both are used in fully-rated power electronics in wind turbines to convert power from the stator and DC generator to the correct voltage and phase of the grid. O True...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC outp...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC output voltage of 48 V and 20 Ampere. 1. initially start designing an uncontrolled single-phase rectifier supplied by 220 V., 50 Hz grid. A parallel capacitor is connected to the output. Draw its waveform and calculate the average value of the output voltage. Evaluate the input Power-Factor and Crest-Factor problems. (20) a. In order to avoid the input Power-Factor and Crest-Factor problems,...
Single phase square to supply an ac load from dc power supply with source voltage VS...
Single phase square to supply an ac load from dc power supply with source voltage VS = 20 volts wave full bridge inverter will be designed. The load resistance is R = 24 ohms and L = 240 milliHenry. Exit the frequency of its voltage will be 25 Hz. With the minimum value of the load current at t = 12ms and t = 30ms Calculate the values.
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system ...
part g
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system is including a transformer, a rectifier and a capacitor input filter. The AC input voltage is 110 Vrms at 60 Hz. (a) Draw the full wave bridge rectifier circuit with transformer which steps down voltage to safer and lower levels that are more suitable for use with diodes (b) Show how the capacitor input filter connects to the rectifier output in the...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward ...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
DC-AC inverters have many commercial and residential applications, including uninterruptible powe...
DC-AC inverters have many commercial and residential applications, including uninterruptible power supply (UPS) units, adjustable speed drives (ASD) for AC motors, and electronic frequency changer circuits. They are also used in solar electrical systems where batteries are charged from solar panels and used as the input DC voltage source. The inverter circuit converts the DC into AC voltage of desired frequency. Most of us are also familiar with HVDC transmission systems, where high voltages are first converted from AC to...
1. Consider the single-phase VSI inverter shown below dc VR(t) iz(t) a) If your input voltage Vdc...
1. Consider the single-phase VSI inverter shown below dc VR(t) iz(t) a) If your input voltage Vdc - 100V2 V and switching frequency is 60 Hz with zero delay angle. Then, sketch the square wave output. Mark the peak values [10 marks] b) Sketch the fundamental output on the top of the above waveform. Mark the peak value По marksl c) The above A VSI is used to create a square wave output with 100v2 V at 60 Hz. This...
1 A single phase AC system Consider a single phase AC distribution system in which there...
1 A single phase AC system Consider a single phase AC distribution system in which there a single home connected to a 10kVA service transformer. Let’s assume that the primary of the distribution transformer can be modeled as an ideal 240V (rms) AC source and that the effective impedance of the transformer is 2% resistance and 3% reactance. (See lecture notes for converting % to Ohms). Connected to the secondary of the transformer is 200 ft of #6 AWG aluminum...
Styles AC Bus Local Loads T: OC Bus PV Generating DC/AC Station Zline Local Power Grid Inverter T1 T2 Figure Q2 In the microgrid in figure Q2, a solar PV station and the local power grid supply a series of local loads The PV generating station is rated at 2 MW and is operating at unity power factor. The PV station internal impedance is purely resistive equal to 50% based on its own rating of 2 MVA. The inverter DC...
QUESTION 8 When connecting any electrical AC generator to an electrical grid, the frequency, phase, and voltage of the generator's final electrical output must match that of the grid. ○True ○ False QUESTION 9 As discussed in class, Inverters convert AC power to DC and Rectifiers convert DC to AC. Both are used in fully-rated power electronics in wind turbines to convert power from the stator and DC generator to the correct voltage and phase of the grid. O True...
Power electronic Design a Switched Mode Power Supply (SMPS) by following pattern. Finally you should reach a DC output voltage of 48 V and 20 Ampere. 1. initially start designing an uncontrolled single-phase rectifier supplied by 220 V., 50 Hz grid. A parallel capacitor is connected to the output. Draw its waveform and calculate the average value of the output voltage. Evaluate the input Power-Factor and Crest-Factor problems. (20) a. In order to avoid the input Power-Factor and Crest-Factor problems,...
part g
Q4. Most electronic systems need a dc voltage to work properly. The AC-to-DC power supply system is including a transformer, a rectifier and a capacitor input filter. The AC input voltage is 110 Vrms at 60 Hz. (a) Draw the full wave bridge rectifier circuit with transformer which steps down voltage to safer and lower levels that are more suitable for use with diodes (b) Show how the capacitor input filter connects to the rectifier output in the...
In this part of the term paper, design a single-phase switch-mode DC power supply with a forward converter. Provide answers to the questions below Please combine the single-phase full-wave rectifier from part two of your term paper with a forward converter to produce a switch-mode DC power supply, as shown below. The output of the bridge rectifier serves as input to the forward converter L1 Np: N BH621BH62 D, V1 Load C1 100p 45 Vrms D3 BH62 18H62 D4 Control...
DC-AC inverters have many commercial and residential applications, including uninterruptible power supply (UPS) units, adjustable speed drives (ASD) for AC motors, and electronic frequency changer circuits. They are also used in solar electrical systems where batteries are charged from solar panels and used as the input DC voltage source. The inverter circuit converts the DC into AC voltage of desired frequency. Most of us are also familiar with HVDC transmission systems, where high voltages are first converted from AC to...
1. Consider the single-phase VSI inverter shown below dc VR(t) iz(t) a) If your input voltage Vdc - 100V2 V and switching frequency is 60 Hz with zero delay angle. Then, sketch the square wave output. Mark the peak values [10 marks] b) Sketch the fundamental output on the top of the above waveform. Mark the peak value По marksl c) The above A VSI is used to create a square wave output with 100v2 V at 60 Hz. This...
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