PROGRAM OVERVIEW

Descriptions:

Many researchers have tried a lot to solve this overarching problem. With the advent of personal computers (PCs) the solution to this issue has been very easy. Then came MATLAB, a flagship software for scientific and engineering computation. A revolution occurred in the field of science. Teaching and learning became very much easier than ever with the powerful graphical tools of MATLAB. Many researchers have developed various attractive software packages to aid to the power system analysis and design. Although the program is developed using MATLAB, it is compiled such that it can be used outside MATLAB environment. Power system analysis courses taught in undergraduate levels cover mainly basic concepts of power system like a single-line diagram, per unit system, modeling of generators, transformers, transmission lines, and loads, load flow analysis, fault analysis, stability studies etc. The purpose of such courses is to develop a fundamental idea about the power system among the undergrads so that they can develop their own skills and aptitudes for solving real-world power engineering problems. The huge computations required for these courses are handled by computers and nowadays MATLAB is used extensively for scientific and engineering computation. In this chapter, a student-friendly toolbox developed to assist students during their course of study in basic power system courses is presented.

What will you learn?

Load flow analysis reveals the electrical performance and power flows (real and reactive) for a specified condition when the system is operating under steady state. It also provides information about line and transformer loads as well as losses throughout the system and voltages at different points in the system for evaluation and regulation of the performance of the power system under a condition known as prior. In the first, you will learn Per Unit calculations which are used to represent all the elements in the power system on a common base and on a single line diagram representation. In the second you will learn fault studies which are used to design a protection devices. In the third, you will learn Load Flow studies which are used to plan a new power system or to expand your power system. Finally you will learn state estimation which is used to know measure the power at each bus i.e. during the operation

Power system analysis is a collective term for various analysis. Those analyses are

1. Power flow analysis/load flow analysis: this analysis helps in calculating the unknown parameters from the known parameters in the steady state condition such as Real power reactive power, current, voltage etc. and usually impedances/admittances are known values.

2. Fault analysis: This analysis is done in the fault condition. The aim of the analysis is to predetermine the fault current in case of occurrence. This pre-determination helps in designing and rating the protection devices required. The fault by default means Short circuit fault.

3. Contingency analysis: This analysis is done at the time of line outage. An outage is a term used for open circuit fault or intentional opening of the circuit. The power flow at the outage line is stopped hence the other parallel lines get burdened and may result in failure. If the burdening continues it may result in a blackout. This is the aim of contingency analysis wherein the diverted path does not get overloaded.

4. Stability analysis: This analysis is used to study the stability of the power system. It analyses whether the system is in a steady state or in a transient/sub-transient state or unstable state.