A Hidden Markov Model Algorithm For Insulation CoOrdination Of Power System Equipment
Journal Title: IOSR Journals (IOSR Journal of Electrical and Electronics Engineering) - Year 2017, Vol 12, Issue 6
Abstract
The demand for the generation and transmission of large amounts of electric power today, necessitates its transmission at extra-high voltages. The diverse conditions under which a high voltage apparatus is used make it very crucial that careful design of its insulation and the electrostatic field profiles are maintained. Insulation coordination addresses the above demand. Transient models used by other researchers are inaccurate due to deterministic approaches used, which arenot flexible and comprehensive. In this paper a stochastic model known as the Hidden markovmodel (HMM) has been used to solve this problem. Modelinga lightning induced overvoltage in a high voltage power system and MATLAB/SIMULINK software were used successfully to obtain good results for the insulation procedure. Therefore, from the maximum likelihood signal obtained from the HMM, it was discovered that relocating the Arrester placement to within 5.56m of the transformer will achieve a protection margin of 18% which is more than the minimum required standard margin of protection of 15%.
Authors and Affiliations
C. C. Ani, T. C. Madueme, C. U. Ogbuka
Keywords
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- EP ID EP388493
- DOI 10.9790/1676-1206031119.
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