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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/24830
Title: Improved Hydroturbine Control and Future Prospects of Variable Speed Hydropower Plant
Authors: Kumari R.
Prabhakaran K.K.
Desingu K.
Chelliah, Thanga Raj
Sarma S.V.A.
Published in: IEEE Transactions on Industry Applications
Abstract: Hydroturbine control system (HTCS) is a nonlinear, nonminimum phase system comprising of speed/frequency sensors, hydraulic servo motors, wicket gates, gate position feedback mechanism, and proportional integral derivative (PID) controller (governor). Governor controls the guide vane opening (GVO) corresponding to the input (speed/frequency). Nowadays, HTCS becomes more intricate insight of variable speed doubly-fed induction generator for compensating wide variation in water head. Hence, robust control techniques are necessary for the optimal utilization of hydropower potential. In this article, a brief review of HTCS is given and a complimentary sliding-mode controller (CSMC) is designed for GVO serving a 250 MW hydrogenerating unit. The CSMC control law is derived and the stability is verified through the Lyapunov function. Simulation is carried out through the MatLab Simulink environment for a 250 MW HTCS. Then, the performance of CSMC for GVO and its influence on the generator characteristics are analyzed and compared with the traditional PID controller. The simulation results demonstrate the efficacy of the controller during the startup process, subsynchronous, and super synchronous mode of operations. It is inferred that the proposed CSMC has three times faster settling time than that of the traditional PID controller. Experimental validation is carried out with a scaled-down laboratory prototype. Furthermore, future scope and design challenges associated with the hydropower control system are illustrated. © 1972-2012 IEEE.
Citation: IEEE Transactions on Industry Applications, 57(1): 941-952
URI: https://doi.org/10.1109/TIA.2020.3028798
http://repository.iitr.ac.in/handle/123456789/24830
Issue Date: 2021
Publisher: Institute of Electrical and Electronics Engineers Inc.
Keywords: Complementary sliding-mode controller (CSMC)
doubly-fed induction machine (DFIM)
guide vane opening (GVO)
hydroturbine
proportional integral and derivative (PID)
ISSN: 939994
Author Scopus IDs: 57208866440
57197895818
57195493326
35755335100
57219289229
Author Affiliations: Kumari, R., Hydropower Simulation Laboratory, Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India
Prabhakaran, K.K., Hydropower Simulation Laboratory, Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India
Desingu, K., Power Electronics and Hydro-Electric Machines Laboratory, Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India
Chelliah, T.R., Hydropower Simulation Laboratory, Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India
Sarma, S.V.A., THDC India Limited, Rishikesh, India
Funding Details: Manuscript received April 17, 2020; revised June 24, 2020 and August 21, 2020; accepted September 27, 2020. Date of publication October 6, 2020; date of current version December 31, 2020. This work was supported by THDC India Limited under Project THD-1495-WRC. Paper 2020-IACC-0674.R2, presented at 2019 IEEE IAS Annual Meeting, Baltimore, MD, USA, Sep. 29–Oct. 3, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICA-TIONS by the Industrial Automation and Control Committee of the IEEE Industry 2020-IACC-0674, THD-1495-WRC
Corresponding Author: Chelliah, T.R.; Hydropower Simulation Laboratory, India; email: thangfwt@iitr.ac.in
Appears in Collections:Journal Publications [WR]

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