Novel design and simulation of predictive power controller for a doubly-fed induction generator using rotor current in a micro-hydropower plant

Document Type: Research Paper


Faculty of Electrical and Computer Engineering, University of Birjand, Birjand, Iran


Hydropower plant and especially micro-hydropower plant is an available, reliable and economical energy source. Micro-hydropower plant is one of the most environment-friendly technology, use and development of which leads to reduction of energy consumption sporadically and worldwide. Along with the growth of these power plants, the issues related to the control of electrical parameters such as load, frequency, voltage and power are also constantly rising. This paper describes the proposed structure of variable speed micro-hydropower plant based on Doubly-Fed Induction Generator. The aim is to control the active and reactive powers for this generator. Here, the proposed controller applied to the generator is predictive power controller that adheres to the principle of predictive strategy. Therefore, in this research, a predictive power controller has been proposed to control active and reactive powers of a DFIG based micro-hydropower plant. The control law is acquired by optimizing a cost function considering the tracking factors. The prediction has been performed on basis of a DFIG model. Finally, the stimulations are carried out by Matlab/Simulink to verify the desired performance of controller.


[1]Garcia F. J., Uemori M. K. I., Echeverria J. J. R., Da Costa Bortoni E., Design Requirements of Generators Applied to Low-Head Hydro Power Plants, IEEE Transactions on Energy Conversion, (2015) 30(4): 1630 – 1638.

[2] Mohibullah M., Radzi A. M., Hakim M. I. A.,Basic Design Aspects of Micro Hydro Power Plant and Its Potential Development in Malaysia, Power and Energy Conference, IEEE International Conference on Power and Energy Proceedings(2004)220 – 223.

[3] Hanmandlu M., Goyal H., Kothari D. P., An Advanced Control Scheme for Micro Hydro Power Plants, Power Electronics, Drives and Energy Systems, PEDES '06. International Conference on, IEEE (2006)1-7.

[4] Laghari J.A., Mokhlis H., Bakar A.H.A., Hasmaini M., A Comprehensive Overview of New Designs in the Hydraulic, Electrical Equipment and Controllers Of Mini Hydro Power Plants Making It Cost Effective Technology, Renewable and Sustainable Energy Reviews, Elsevier (2013) 279 – 293.

[5] Monteiro C., Ramirez-Rosado I. J., Fernandez-Jimenez L. A.,Short-Term Forecasting Model for Electric Power Production of Small-Hydro Power Plants, Renewable Energy, Elsevier (2013) 50:387 – 394.

[6] Kishor N., Saini R.P., Singh S.P., A Review on Hydropower Plant Models and Control, International Journal of Mechatronics, Electrical and Computer Technology, Elsevier, IEEE (2004)776 – 796.

[7] Salhi I., Doubabi S., Essounbouli N., Hamzaoui A., Application of Multi-Model Control With Fuzzy Switching to a Micro Hydro-Electrical Power Plant, Renewable Energy, Elsevier (2010) 35: 2071 – 2079.

[8] Wang G., Zhai Q., Yang J.,Voltage Control of Cage Induction Generator in Micro Hydro Based on Variable Excitation, Electrical Machines and Systems (ICEMS), International Conference on, IEEE (2011) 13(4): 1-3.

[9] Ion C.P., Marinescu C.,Autonomous Micro Hydro Power Plant with Induction Generator, Renewable Energy, Elsevier (2011) 36: 2259 – 2267.

[10] Breban S., Radulescu M. M., Robyns B., Direct Active and Reactive Power Control of Variable-Speed Doubly-Fed Induction Generator on Micro-Hydro Energy Conversion System, Xix International Conference on Electrical Machines - ICEM, Rome, IEEE (2010)1-6.

[11] Löhdefink P., Grillenberger M., Dietz A., Gröger A., Hoffmann A., Hubert T., Sensorless Vector Control of a Permanent Magnet Synchronous Generator for Micro Hydro Power, Education and Research Conference (EDERC), IEEE, 5th European DSP (2012) 252 - 256.

[12] Camacho E., Bordons A.C., Model Predictive Control, Springer, Book (2004).

[13] Molina M.G., Pacas M., Improved Power Conditioning System of Micro-Hydro Power Plant For Distributed Generation Applications, Industrial Technology (ICIT), IEEE International Conference on (2010)1733 - 1738.

[14] Jahns T.M., Variable Frequency Permanent Magnet AC Machine Drives, Wiley, Book (2013).

[15] M.A.C, Martinez-Botas R.F., Lamperth M., Measurement of Magnet Losses in a Surface Mounted Permanent Magnet Synchronous Machine, Energy Conversion, IEEE Transactions (2015) 30: 323-330.

[16] Wu B., Lang Y., Zargari N., Kouro S., Doubly Fed Induction Generator Based Wecs, Wiley, Book (2011).

[17] Variani M.H., Tomsovic K., Two-Level Control of Doubly Fed Induction Generator Using Flatness-Based Approach, IEEE Transactions, Power Systems (2015)1-8.

[18] Breban S., Nasser M., Ansel A., Saudemont C., Robyns B., Radulescu M., Variable Speed Small Hydro Power Plant Connected to Ac Grid or Isolated Loads, EPE Journal (2007)17: 29 - 36.

[19] Ansel A., Biet M., Robyns B., Micro Hydropower Station Based on a Doubly Fed Induction Generator Excited by a Pm Synchronous Machine, ICEM (2004).

[20] Petites Centrales Hydrauliques- Turbines Hydrauliques, Report of the Renewable Energies Action Program in Switzerland, PACER (1995).

[21] Miryousefi Aval S. M., Ahadi A.,Wind Turbine Fault Diagnosis Techniques and Related Algorithms, International Journal of Renewable Energy Research-IJRER (2016)6: 80-89.

[22] Leonhard W.,Control of Electrical Drives. Berlin, Germany, Springer (1985).

[23] Filho A. J. S., Ruppert E., A Deadbeat Active and Reactive Power Control for Doubly – Fed Induction Generator,Electric Power Components and Systems (2010) 38: 592 – 602.

[24] Filho A. J. S., Filho E. R., The Complex Controller for Three-Phase Induction Motor Direct Torque Control, Controle & Automação Sociedade Brasileira de Automatica (2009) 20:256-262.

[25] An A., Hao X., Zhao C., Su H., A Pragmatic Approach for Selecting Weight Matrix Coefficients in Model Predictive Control Algorithm and Its Application, In proceedings IEEE International Conference on Automation and Logistics (2009) 486-492.

[26] Javaheri Fard H., Najafi H.R., Eliasi H., Active and Reactive Power Control Via Currents of Rotor’s d and q Components with Nonlinear Predictive Control Strategy in Doubly-Fed Induction Generator Based on Wind Power System,  Energy Equipment and Systems (2015)3:143-157.

[27] Javaheri Fard H., Najafi H.R., Heidari G., Design of Discrete Predictive Direct Power Control Strategy on the Doubly-Fed Induction Generator Based on Micro-Hydro Power Plant With the Aim of Active and Reactive Powers Control,  21st Conference on Electrical Power Distribution Networks Conference (Epdc) IEEE (2016) 118-124.

[28] Javaheri Fard H., Najafi H.R., Eliasi H., Design and Implementation of the Predictive Current Control Strategy in the Form of Laboratory on Single Phase Photovoltaic Grid-Connected Inverter Based on Microcontroller Tms320lf2407a,  30 th International Power System Conference (PSC) (2015) 1-7.

[29] Eliasi H., Menhaj M.B., Davilu H., Robust Nonlinear Model Predictive Control for a PWR Nuclear Power Plant, Progress in Nuclear Energy, Elsevier, (2012) 54: 177-185.