Y Design a half-bridge inverter for the following specifications.Vd=131-159 VVo= 220 V RMS, f=50 HzPo=550 WAIL= 5 A at the worst casefs-10 kHzDraw the schematic including the PWM.gènerator blocks. Assume open loop control.Find the turn ratio of the transformer to be used. Assume 95% voltage regulation efficiency.Find the range of ma based on the selected transformer.Find mf.Find L and C values of the output filter.Explain the reason why topology uses antiparallel diodes in the switches.Answers:n=5ma-1-0.8239mf=200 /L=795 uHC=31.862 uF

Half Bridge Inverter:- A half-bridge inverter is a power electronic converter that converts direct…

Y Design a half-bridge inverter for the following specifications. Vd=131-159 V Vo= 220 V RMS, f=50 Hz Po=550 W AIL= 5 A at the worst case fs=10 kHz Draw the schematic including the PWM generator blocks. Assume open loop control. Find the turn ratio of the transformer to be used. Assurme 95% voltage regulation efficiency. Find the range of ma based on the selected transformer. Find mf. Find L and C values of the output filter. Explain the reason why topology uses antiparallel diodes in the switches.

Y Design a half-bridge inverter for the following specifications. Vd=131-159 V Vo= 220 V RMS, f=50 Hz Po=550 W AIL= 5 A at the worst case fs=10 kHz Draw the schematic including the PWM generator blocks. Assume open loop control. Find the turn ratio of the transformer to be used. Assurme 95% voltage regulation efficiency. Find the range of ma based on the selected transformer. Find mf. Find L and C values of the output filter. Explain the reason why topology uses antiparallel diodes in the switches.

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.9P

See similar textbooks

Similar questions

A single-phase 50-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down transformer at the load end of a 2400-volt feeder whose series impedance is (1.0+j2.0) ohm. The equivalent series impedance of the transformer is (1.0+j2.5) ohms referred to the high-voltage (primary) side. The transformer is delivering rated load at a 0.8 power factor lagging and at a rated secondary voltage. Neglecting the transformer exciting current, determine (a) the voltage at the transformer primary terminals, (b) the voltage at the sending end of the feeder, and (c) the real and reactive power delivered to the sending end of the feeder.
For the transformer in Problem 3.10. The open-circuit test with 11.5 kV applied results in a power input of 65 kW and a current of 30 A. Compute the values for GcandBm in siemens referred to the high-voltage winding. Compute the efficiency of the transformer for a load of 10 MW at 0.8 p.f. lagging at rated voltage.
The transformer of Problem 3.16 is supplying a rated load of 50 kVA at a rated secondary voltage of 240 V and at 0.8 posr factor lagging. Neglect the transformer exciting current. (a) Determine the input terminal voltage of the transformer on the high-voltage side. (b) Sketch the corresponding phasor diagram. (c) If the transformer is used as a step-down transformer at the load end of a feeder whose impedance is 0.5+j2.0, find the voltage VS and the power factor at the sending end of the feeder.
Consider an ideal transformer with N1=3000andN2=1000 turns. Let winding 1 be connected to a source whose voltage is e1(t)=100(1| t |)volts for 1t1ande1(t)=0 for | t |1 second. A2- farad capacitor is connected across winding 2. Sketch e1(t),e2(t),i1(t),andi2(t) versus time t.
Consider Figure 3.25 of the text for a transformer with off-nominal turns ratio. (i) The per-unit equivalent circuit shown in part (c) contains an ideal transformer which cannot be accommodated by some computer programs. (a) True (b) False (ii) In the - circuit representation for real c in part (d), the admittance parameters Y11 and Y12 would be unequal. (a) True (b) False (iii) For complex c, can the admittance parameters be synthesized with a passive RLC circuit? (a) Yes (b) No
Consider Figure 3.4. For an ideal phase-shifting transformer, the imda nce is unchanged when it is referred from one side to the other. (a) True (b) False
A single-phase two-winding transformer rated 90MVA,80/120kV is to be connected as an autotransformer rated 80/200kV. Assume that the transformer is ideal. (a) Draw a schematic diagram of the ideal transformer connected as an autotransformer. showing the voltages, currents, and dot notation for polarity. (b) Determine the permissible kVA rating of the autotransformer if the winding currents and voltages are not to exceed the rated values as a two-winding transformer. How much of the kA rating is transferred by magnetic induction?
A 100-kVA, 2500/125-V, 50-Hz, step-downtransformer has the following parameters: R1=1.5Ω, X1= 2.8Ω, R2 = 15mΩ, X2 =20mΩ, Rc1 =3kΩ, Xm1 = 5kΩ The transformer delivers 85% of the rated load ata terminal voltage of 115 V and a power factor of0.866 lagging. Determine (a) the efficiency, and(b) the voltage regulation. Draw the phasordiagram of the transformer. Use the approximate equivalent circuit referredto the secondary side.
Single phase half wave AC-AC converter has a resistance of R = 50 ohms. Input voltage is given as 230 Vrms. Transformer conversion ratio is 1:1. If T1 thyristor is triggered at 60 degrees; a)Rms output voltage? b)Output power? c)RMS load current and average load current? d)Input power factor? e)Average and RMS thyristor current?
A three-phase bridge inverter delivers power to a resistive load from a 350 V dc source. For a star connected load of 5 ohm per phase, determine for both (i) 180° mode (ii) 120° mode of operation: (i) average and rms value of load current (ii) average and rms value of thyristor current (iii) Three phase power dissipation (iv) First five harmonics in phase voltage
The label values of the single-phase transformer whose electrical equivalent circuit is given below are 20 kVA, 15400V / 240V, 50 Hz. This transformer Calculate what is required below. a. What is the value of the active power measured in the short circuit test? b. What is the value of the active power measured in the idle test? c. Voltage regulation was found to be 0.1% at 0.8 back power factor. Accordingly, using any method you want Find out how many kVA the transformer draws from the network (primary apparent power).
Consider the following short circuit transformer as shown in figure below which operate at: the short circuit voltage (Vsc)=40 V short circuit current (Isc) = 2.6A Cu losses power (Psc) = 90W Compute the transformer parameters: (ZSC), (RSC), (XSC) and power factor cos∅?