Fuzzy Control Solution for Hydro Turbine Generators

2005 ◽  
Author(s):  
R.-E. Precup ◽  
Z. Preitl ◽  
S. Kilyeni
Keyword(s):  
Fuzzy Control ◽  
Control Solution ◽  
Hydro Turbine ◽  
Turbine Generators

Robust Takagi-Sugeno fuzzy control for fractional order hydro-turbine governing system

2016 ◽  
Vol 65 ◽  
pp. 72-80 ◽  
Author(s):  
Bin Wang ◽  
Jianyi Xue ◽  
Fengjiao Wu ◽  
Delan Zhu
Keyword(s):  
Fuzzy Control ◽  
Fractional Order ◽  
Hydro Turbine ◽  
Governing System ◽  
Takagi Sugeno

Finite time takagi-sugeno fuzzy control for hydro-turbine governing system

2016 ◽  
Vol 24 (5) ◽  
pp. 1001-1010 ◽  
Author(s):  
Bin Wang ◽  
Jianyi Xue ◽  
Fengjiao Wu ◽  
Delan Zhu
Keyword(s):  
Fuzzy Control ◽  
Finite Time ◽  
Control Method ◽  
Fuzzy Model ◽  
Schur Complement ◽  
Stability Control ◽  
Linear Matrix ◽  
Hydro Turbine ◽  
Governing System ◽  
Takagi Sugeno

In this study, a robust finite time Takagi-Sugeno fuzzy control method for hydro-turbine governing system (HTGS) is investigated. Firstly, the mathematical model of HTGS is introduced, and on the basis of Takagi-Sugeno (T-S) fuzzy rules, the T-S fuzzy model of HTGS is presented. Secondly, based on finite time stability theory, a novel finite time Takagi-Sugeno fuzzy control method is designed for the stability control of HTGS. Thirdly, the relatively loose sufficient stability condition is acquired, which could be transformed into a group of linear matrix inequalities (LMIs) via Schur complement as well as the strict mathematical derivation is given. Furthermore, the control method could resist random disturbances, which shows the good robustness. Simulation results indicate the designed finite time T-S fuzzy control scheme works well compared with the conventional method. The approach proposed in this paper is easy to implement and also provides reference for relevant hydropower systems.

scholarly journals Ant Colony Optimized Fuzzy Control Solution for Frequency Oscillation Suppression

2017 ◽  
Vol 45 (14) ◽  
pp. 1573-1584 ◽  
Author(s):  
Yogesh Krishan Bhateshvar ◽  
Hitesh Datt Mathur ◽  
Houria Siguerdidjane ◽  
Ramesh C. Bansal
Keyword(s):  
Fuzzy Control ◽  
Ant Colony ◽  
Frequency Oscillation ◽  
Control Solution ◽  
Oscillation Suppression

Computational Model for Investigating the Influence of Unbalanced Magnetic Pull on the Radial Vibration of Large Hydro-Turbine Generators

2012 ◽  
Vol 134 (5) ◽  
Author(s):  
Yong Xu ◽  
Zhaohui Li
Keyword(s):  
Computational Model ◽  
Analytical Method ◽  
Analytical Methods ◽  
Electrical Machine ◽  
Radial Vibration ◽  
Turbine Generator ◽  
Hydro Turbine ◽  
Unbalanced Magnetic Pull ◽  
Turbine Generators ◽  
Rotor Model

A radial unbalanced magnetic pull (UMP) can be produced by an eccentric rotor and leads vibrations in large hydro-turbine generators. The influence of nonlinear UMP on the radial vibration of a large hydro-turbine generator is analyzed in this paper. The UMP is determined as a function of eccentricities and field currents by means of a simple analytical method instead of the finite element (FE) method. The analytical method employs the no-load characteristic curve of an electrical machine and saturation effects of the ferromagnetic materials are taken into consideration. FE rotor model of a large hydro-turbine generator unit, taking account of guide bearings, thrust bearing and periodic forces, is developed to investigate the influence of UMP on radial vibrations. The FE rotor model and the analytical method for UMP constitute the computational model. UMP is calculated under different rotor eccentricities and field currents by the proposed method. Comparing with other analytical methods, the effectiveness of the proposed method is verified. Dynamic responses of the FE model under different analytical methods for UMP are calculated to investigate the difference in vibration between different analytical methods. A simulated excitation test is performed and a comparative analysis between the calculated results and the field data is provided. The computational model is proved to be reasonable according to the analysis.

State feedback fuzzy control solution for BLDC drives

2011 ◽  
Author(s):  
Alexandra-Iulia Stinean ◽  
Stefan Preitl ◽  
Radu-Emil Precup ◽  
Claudia-Adina Dragos ◽  
Mircea-Bogdan Radac ◽  
...  
Keyword(s):  
Fuzzy Control ◽  
State Feedback ◽  
Control Solution

scholarly journals Enhancement of Energy Efficiency of Hydro Turbine Generators by Energy Conservation Techniques

2020 ◽  
Vol 8 (6S) ◽  
pp. 14-19
Keyword(s):  
Energy Efficiency ◽  
Energy Conservation ◽  
Economic Feasibility ◽  
Hydro Turbine ◽  
Turbine Generators ◽  
Conservation Measures ◽  
On Line ◽  
Terminal Voltage ◽  
Generator Terminal ◽  
Energy Conservation Measures

This paper describes the results of enhancing energy efficiency of hydro turbines by implementing the energy conservation measures for hydro turbine generators. The procedure for evaluating the on-line performance of generators is discussed. The energy saving in generators by maintaining optimum generator terminal voltage, by reducing the stator winding temperature by improving the performance of coolers and reducing the excitation loss by appropriate tuning of excitation system are enumerated in details with case studies. The implementation of energy conservation measures have a techno-economic feasibility with a payback period of 1 to 5 years.

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