Entropy 2014, 16(6), 3136-3148; doi:10.3390/e16063136
Article

Minimum Entropy-Based Cascade Control for Governing Hydroelectric Turbines

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Received: 21 January 2014; in revised form: 21 May 2014 / Accepted: 27 May 2014 / Published: 5 June 2014
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: In this paper, an improved cascade control strategy is presented for hydroturbine speed governors. Different from traditional proportional-integral-derivative (PID) control and model predictive control (MPC) strategies, the performance index of the outer controller is constructed by integrating the entropy and mean value of the tracking error with the constraints on control energy. The inner controller is implemented by a proportional controller. Compared with the conventional PID-P and MPC-P cascade control methods, the proposed cascade control strategy can effectively decrease fluctuations of hydro-turbine speed under non-Gaussian disturbance conditions in practical hydropower plants. Simulation results show the advantages of the proposed cascade control method.
Keywords: minimum entropy; cascade control; hydroelectric turbines; non-Gaussian disturbances
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MDPI and ACS Style

Ren, M.; Wu, D.; Zhang, J.; Jiang, M. Minimum Entropy-Based Cascade Control for Governing Hydroelectric Turbines. Entropy 2014, 16, 3136-3148.

AMA Style

Ren M, Wu D, Zhang J, Jiang M. Minimum Entropy-Based Cascade Control for Governing Hydroelectric Turbines. Entropy. 2014; 16(6):3136-3148.

Chicago/Turabian Style

Ren, Mifeng; Wu, Di; Zhang, Jianhua; Jiang, Man. 2014. "Minimum Entropy-Based Cascade Control for Governing Hydroelectric Turbines." Entropy 16, no. 6: 3136-3148.

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