ENGD3045S Electrical Transmission & Distribution 1 Coursework | De Montfort

Learning Outcomes of ENGD3045S :

The learning outcomes that are assessed by this coursework are: 

1. To become more familiar with the per unit representation of power systems 
2. To understand the Gauss-Seidel method of iteration and its use for calculating the bus voltages in a power system 
3. To compare and analyse the analytical and simulation results 
4. To understand the flow chart for the Gauss-Seidel Load Flow algorithm

ENGD3045S Part A:

ENGD3045S Part B: 3 bus interconnected transmission system 

1. Calculate the Admittance matrix of the following 3-bus system. All the lines have an impedance of 0.05+j0.15 pu.
   
    
2. Choose an appropriate Slack Bus for the load flow analysis. Explain why we need to choose a slack bus. 
3. Use appropriate expressions for the bus voltages in the Gauss-Seidel Iterative process and solve for the voltages for 2 iterations. The load at bus 2 is 50 MW and 20 MVAr, while the load at bus 3 is 40 MW and 20 MVAr. 
4. Capture the outputs (one-line diagram and load flow results) from PSSE and comment on the results, especially the differences between the simulated bus voltage values and the bus voltage values calculated analytically (compare both magnitude and angles). 
5. Discuss your findings and comment on the load flow results when Line 2 is removed from the system. Similarly, comment on the results, when, instead of Line 2, only Line 3 is removed from the system. 

ENGD3045S Part C: Primary Distribution Systems 

1. What are the different topologies of primary distribution systems? Briefly explain each design with the help of diagrams of the distribution systems. Maximum of 3 pages of A4 using a font size of 12.
   (Hint: you can focus on the feeder configuration while discussing the topology/design of each distribution system).
2. Compare the designs mentioned above of primary distribution systems from the point of reliability, efficiency, economic cost, and ease of operation. You can use case studies if you wish from around the world or restrict your discussion purely to an academic exercise. (Maximum of 3 pages of A4 using a font size of 12.)