Problem 7 Five points if only the correct answer is circled Three points if the correct...
uge b of Problem 5 (Seven points if only the correct answer is circled. Four points if two answers are circled and one is correct.) armature current of a de machine is controlled with a PI controller. The controller is designed to cancel the electrical time constant. The following is known about the machine KPWM-: 15 (PWM converter gain) o-2400 rad/s (system bandwidth) R.-2.0 Ω (Armature resistance) 16 ms (electrical time constant) a) What is the armature inductance? i)2 16m...
uge6 of7 Problem 5 (Seven points if only the correct answer is circled. Four points if two answers are circled and one is correct.) armature current of a de machine is controlled with a PI controller. The controller is The designed to cancel the electrical time constant. The following is known about the machine: KrWM = 15 (PWM converter gain) 0b- 2400 rad/s (system bandwidth) a) What is the armature inductance? R.-2.0 Ω (Armature resistance) e 16 ms (electrical time...
Problem 4 (Seven points if only the correct answer is circled. Four points if two answers are circled and one is correct.) A de machine has the following known: Kr-KE 0.4 Vs (torque and voltage constants) R, 2 Ω (armature resistance) a) At blocked rotor (Om-0), what would be the voltage needed for a torque of 1.2 Nm? 0.4 0.4 i) 1.2.,04 0.4 b) What would be the voltage needed to run no load (T 0) at 120 rad/s 120...
please help me answer 100% correct answer. very important hand
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b) The capacitance, inductance and load resistance of a Boost step-up dc-to-dc converter are 1.0μF, 10μΗ and 20.0Ω respectively. It is used to converter 10V dc input to 30V dc output. The switching frequency f,-500 KHz. Determine the following for this converter:- i. The duty cycle (D) ii. The period (T). li. The ripple voltage (AVou). iv. The critical frequency (). v....
Problem 5 (5 points for circling just the correct answer. 3 points if 2 are circled and one is correct) A 4 pole permanent magnet synchronous machine is held at a constant angle. The torque on the shaft is T- 4.5 Nm. The current vector is given as a) What is the torque constant (KT)? ili) 4.5 6 ii) 4.5.6. 4.5 2 What is the mechanical angle of the shaft for θ.-60° ? i) 60+90 b) iii) 60을 ii) (60-90)...
I want to solve this problem step by step
1. (35 points) Switch mode DC / DC Converters. a. (15 points) Design a flyback DC/DC power converter to the following specifications. Assume ideal components. Input Voltage Output Voltage Output Power Switching frequency Maximum Current Ripple in the filter inductor Output ripple voltage: Continuous conduction 170 VDC 12 VDC 40 Watts 750 kHz 1.2 Amps Your answer should include a circuit diagram with each energy storage element labeled with its value....
Question 1 (25 marks) a) A full wave rectifier has 40V peak secondary voltage, 2,000uF capacitor and 1022 load. You may take the line frequency as 50Hz and voltage drop across a diode as 0.7V. i. Calculate the peak dc voltage (VA). (2 marks) ii. Calculate the dc load voltage (Vdcloed). (4 marks) iii. Calculate the ripple voltage (AVLoad). (4 marks) b) The capacitance, inductance and load resistance of a Buck step-down dc-to-dc converter are 1.0uF, 10uH and 20.022 respectively....
1. [20 points] Choose the right answer. a) If phase current of a wye-connected three-phase system is equal to Ipu, then the line current of the same system is equal to V3 pu. i. True ii. False b) A synchronous generator is supplying power to a load with unity power factor at 60 Hz. The load is suddenly disconnected (tripped). What would happen to the internal generated voltage, EA? i. Same as before ii. Increase iii. Decrease c) What is...
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1. Analysis and design of a buck-boost converter: A buck-boost converter is illustrated in Fig. 1(a),
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Figure 1 Buck–boost converter
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Assignment No.6 10mH, C-20μF, an 1. A boost converter as the following parameters: V,-20V, L Find the current spec of the inductor for continuous current mode (Max an Min current) -20 2. Switching frequency is 50 KHz and conduction duty cycle is 0.6 a. b. Calculate the output voltage and the ripple voltage An array has been formed with three modules in a string and two strings in parallel. The overall characteristic of the array...