Computer Aided Power System Analysis

The present day power systems are characterized by large highly interconnected network. Extensive system studies are required at almost all stages of its planning, operation and control.

Simulation and analysis of such a large system is possible only with the help of digital computers. Most of the time, a power system, theoretically, remains under steady state.

Load flow or power flow study is the most frequently carried out steady state analysis, which determines system voltage profile and line flows/losses. The ever growing concern towards secure

operation of power systems requires security analysis to be carried out at planning as well as operation stage, which involves analyzing system states following contingencies.

A fault in the power system network results in excessive current flowing through its various components. Fault analysis is important in determining the short circuit levels, which is utilized

in proper selection of equipments and determining the protection requirements. A disturbance in the system, including a fault, may sometimes lead to unstable operation of the system.

Different types of stability phenomena have been observed in the power systems, which need to be critically analyzed, utilizing appropriate dynamic model of the system.

This course will cover the modeling issues and analysis methods for the power flow, short circuit, contingency and stability analyses, required to be carried out for the power systems. Necessary

details of numerical techniques to solve nonlinear algebraic as well as differential equations and handling of sparse matrices will also be included.

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