Reference no: EM133059397
ELEC1041 Power Systems Analysis - University of Greenwich
Lab - Analysis of a Nine-Bus Power System
Aims
To enhance understanding of practical and theoretical concepts in relation to design and operation of interconnected power systems.
Outcome 1: interpret a brief and produce an appropriate report to a professional standard;
Outcome 2: demonstrate an understanding of how the Power World Simulator (PWS) is used to build a system and obtain appropriate simulation data;
Outcome 3: check the quality of, and analyse, simulation data by using the tools available within PWS appropriately;
Outcome 4: demonstrate an understanding of relevant theoretical concepts and the application of these concepts through appropriate calculations/analysis as appropriate;
Outcome 5: draw together all of the above through succinct (but critical) discussion and appropriate conclusions.
Outline
A single-line diagram of a nine-bus power system is to be developed in Power World Simulator (PWS). Input data are given in Tables 1, 2 and 3. When constructing the one-line representation of the power system in PWS, make sure that lines do not cross each other.
Once the one line diagram is constructed, a thorough analysis of the power system is to be carried out. The analysis must be supported by relevant calculations and simulation results using PWS. Some steps/pointers are outlined below to help you in carrying out the analysis. The list below is only a guide and it is by no means exhaustive. The steps indicated below need not be carried out in the order given. However, your report must address adequately the issues raised below at the very minimum.
1. Model this system in Power World Simulator and obtain a complete solution using the Gauss-Seidel iterative technique. Investigate the impact of variation in the MVA tolerance on the conversion rate (that is the number of iterations required for conversion).
2. Repeat the tasks in (1) above using the Newton-Raphson iterative method. Determine the number of iterations required for the system to converge. This is the base case (BC).
Graphs would be useful tools for parts 1 & 2.
3. Identify and discuss any issues related to the base case from the solutions obtained from the BC.
4. Determine the acceptable generation range of all generators (except the one connected to the slack Bus), keeping each line and transformer in the system loaded at or below 80% of its MVA limit. Each time you make a change of generator, you must start from the BC.
5. Determine the compensation (how much and where) required to bring the voltage at all Buses to within the acceptable range (95% to 105%) for the BC. Comment on the actual MVArs provided by the capacitor banks relative to the capacitor ratings. Note that compensation is normally located at load buses.
6. Determine the effect of the insertion of the capacitor banks in (5) on line-loadings and total power losses in the system.
Attachment:- Power Systems Analysis.rar
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