Load Frequency Control of Multi-source Multi-area Hydro Thermal System Using Flexible Alternating Current Transmission System Devices |
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Authors: | Vijaya Chandrakala Balamurugan Sukumar Krishnamoorthy Sankaranarayanan |
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Affiliation: | 1. Department of Electrical and Electronics Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India;2. Department of Computer Science and Engineering, Sri Ramakrishna Institute of Technology, Coimbatore, India |
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Abstract: | This article describes the load frequency control of a multi-area system. Each control area contains both a hydro and thermal power plant to form a multi-source multi-area hydro thermal system. The secondary proportional-integral controller has been tuned using Ziegler–Nichols, genetic algorithm, and fuzzy gain scheduling methods. On comparing the controller performance based on various performance indices, it is found that a fuzzy gain scheduling tuned proportional-integral controller is suitable for a multi-source multi-area hydro thermal system. Further improvement on the load frequency dynamics has been achieved by connecting superconducting magnetic energy storage unit in each control area and a static synchronous series compensator unit on a tie-line. |
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Keywords: | load frequency control flexible alternating current transmission system devices static synchronous series compensator superconducting magnetic energy storage fuzzy gain scheduling genetic algorithm hydro thermal plant multi-source multi-area |
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