The impedance of a three-phase, 50 km long power transmission line per unit length is 0.05 + j0.1  / km.
A load with a power coefficient of 0.8 forward is fed from the end of the line. Line and end of line of energy transmission line
According to the intention to keep the voltage between phases constant at 154 kV;
a) Active and reactive power values ​​drawn from the beginning and end of the line,
b) Calculate the lost power spent on the energy transmission line and the efficiency of the line.

1) How is the real power controlled in a grid-connected wind turbine employing a permanent-magnet synchronous generator (PMSG) with rectifier and inverter? *

2) How do you compare the size of power electronics in a grid-connected 1 MW variable-speed wind turbine employing DFIG and PMSG? *

3)What is the real power flow in a grid-connected wind turbine employing a 4-pole doubly-fed induction generator (DFIG) if the generator rotational speed is 1580 rpm? *

4) What is the azimuth angle at solar noon in a place located at 40^o N and 30^o E for March 21, 2020? *

5)What is the altitude angle at sunset in a place located at 40^o N and 30^o E for March 21, 2020? *

Recommend/ Explain a program which uses an array of 20 integers whose input is taken by user, the array is passed to a functions named i.e. smallest(int A[20) and largest(int B[20]) to determine minimum and maximum values respectively.

Also create a function named modify(int *p) which modifies the value at the index given by user.

Please provide as much details as possible.

Show that when two 2-port networks are inter-connected in parallel, then the Y-matrix of the resulting network is simply sum of the Y-matrices of the two networks. Extend this concept to two 2-port network in series

Question 3
Logic is basically human reasoning that tells us if certain proposition or declarative statement is true.
(a)There are five boards of directors (kojo, kofi, menash musah, and mawule) of a School. The board of director kojo owns 10% shares, kofi owns 30% shares, mensah owns 20% shares, musah owns 25% shares and mawule 15% shares of the total shares. For the adoption of the particular policy to be passed in the boards meeting more than 66% should vote in favour of the policy. The weightage to the votes depend upon the percentage shares owned by the directors. In the boards room each director has a switch which he turns ON if votes in favour of policy. Design a switching circuit to ring a bell if policy is accepted in the boards meeting. Only the NAND gates should be used to realize the circuit. (CR 7marks)

(b) With relevant logic diagram and truth table explain the working of a two input EX-OR gate.
(EV marks8)

(c) Perform the following subtractions using 2s complement method.
(i) 01000 01001 (ii) 01100 00011 (iii) 0011.1001 0001.1110 (CR 5marks)
(Total 20 marks)

Provide a sketch that how to measure both gain and phase margins using Bode diagram. Compare with Nyquist stability region.

2.Describe the parallel operating conditions in transformers in detail. Give the tolerances of the conditions. Why does circulation flow occur? Calculate the load sharing statement for transformers connected in parallel.

Compare and contrast the Ziegler-Nichols and the Pessen tuning methods. Explain their advantages and drawbacks.

2. Design a digital circuit, using a decoder, only Nor gates, a 7-segment display, and D Flip Flops, that repeatedly outputs the sequences of characters ‘P’, ‘E’, ‘A’, ‘L’ if x=0 and ‘L’, ‘E’, ‘A’, ‘P’ if x=1 .

Topic 6. One transistor amplifier (BJT)

1. Design a single transistor amplifier (BJT) with appropriate coupling and bypassing capacitors. You can use the examples from the book or homework, but need to change the parameters values .

2. Draw the DC equivalent circuit and find the Q point. Draw the AC equivalent circuit and find parameters of your full amplifier circuit (gain and input resistance) .

3. Simulate the FULL amplifier circuit in DC state (you cannot use DC operating point analysis), find and indicate the Q point on the circuit diagram and compare with theoretical results.

4. Simulate the FULL amplifier circuit using appropriate sin input signal(s). Show the graphs of all voltages and currents needed to calculate amplifier parameters. Using the simulation results from the graph, find the same amplifier circuit parameters, and compare with theoretical result. Draw your conclusions.

Please show parameters and all graphs :D

Thanks

Figure-of-Merits of optical detectors: responsivity, sensitivity, contrast, time response, NEP, ect (Explain)

For each of the following difference equations

(i) y[n + 1] + 1.5y[n] = x[n]

(ii) y[n + 1] + 0.8y[n] = x[n]

(iii) y[n + 1] - 0.8y[n] = x[n]

For the difference equations given in Problem 2.16:

(a) Find a closed-form solution for y[n] when x[ n] = 0 for all n and y[0] 2.

(b) Find a closed-form solution for y[n] when x[n] = u[n] and y[ 0] = 0.

(c) Find a closed-form solution for y[n] when x[n] = u[n] and y[0] = 2.

Why do eigenvalues stay the same from one state space model to another state space model while eigenvectors change when the state space model changes? Please explain in depth details!!

a)A small conducting ring is placed inside a solenoid and is concentric with the axis of the solenoid. If the current in the solenoid changes direction, explain what happens to the magnetic flux through the ring.

b)Explain how a uniform magnetic field (one constant in magnitude and direction) can be created.

How can we control the speed of Synchronous an AC Generator and give me a picture of Synchronous an AC Generator regarding of what you are planning to say about controlling the speed? Give me details as much as you can.