Effect of Inertia Constant on Generator Frequency and Rotor Angle
Engineering and Applied Sciences
Volume 3, Issue 1, February 2018, Pages: 6-11
Received: Nov. 25, 2017; Accepted: Dec. 23, 2017; Published: Feb. 1, 2018
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Ngyarmunta Alan Audu, Department of Electrical and Electronics Engineering, Air Force Institute of Technology, Kaduna, Nigeria
Odaba Alphaeus, Department of Electrical and Electronics Engineering, Air Force Institute of Technology, Kaduna, Nigeria
Talatu Adamu, Department of Electrical and Electronics Engineering, Air Force Institute of Technology, Kaduna, Nigeria
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Inertia constant of a rotating system describes the initial transient, frequency and rotor angle behavior of that system when subjected to a real power disturbance. Therefore, the inertia constant of a system can be a useful tool when investigating the frequency and rotor angle stability of a system. The use of the swing equation gives us a viable method for estimating the inertia constant, if a measurement of that can provide time stamps measurements of the frequency and power dynamics during a disturbance. In this project work, effect of inertia constant of synchronous generator (machine constant) on its frequency and rotor angle is investigated. Swing equation is used for modeling the dynamics of the system. It is then built and simulated using MATLAB. The analysis is done by observing how the frequency and rotor angle changes when the inertia constant is varied while keeping all system parameters constant. The study is extended to investigate the dynamics of such system with very high and those with very low inertia constant and the results show that the higher the value of the inertia constant, the higher the settling time and of course the maximum overshoot.
Inertia Constant, Rotor Angle, Swing Equation, Frequency
To cite this article
Ngyarmunta Alan Audu, Odaba Alphaeus, Talatu Adamu, Effect of Inertia Constant on Generator Frequency and Rotor Angle, Engineering and Applied Sciences. Vol. 3, No. 1, 2018, pp. 6-11. doi: 10.11648/j.eas.20180301.12
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