A Lyapunov Based Approach to Enchance Wind Turbine Stability

This paper introduces a nonlinear control of a wind turbine based on a Double Feed Induction Generator. The Rotor Side converter is controlled by using field oriented control and Backstepping strategy to enhance the dynamic stability response. The Grid Side converter is controlled by a sliding mode. These methods aim to increase dynamic system stability for variable wind speed. Hence, The Doubly Fed Induction Generator (DFIG) is studied in order to illustrate its behavior in case of severe disturbance, and its dynamic response in grid connected mode for variable speed wind operation. The model is presented and simulated under Matlab/ Simulink

Stability enhancement of a wind plant based on a DFIG and a PMSM: A Lyapunov approach

This paper presents a hybrid wind generation with a doubly-fed induction generator (DFIG) and a permanent magnet synchronous machine (PMSM). The study analyzes the performances of the two wind systems and assets the stability of the operating parameters in the presence of a grid fault. Both the DFIG and PMSM Machine-Side Converter (MSC) nonlinear commands are built according to Lyapunov conditions, while the Grid-Side Converter (GSC) command is based on a standard vector control. In the first stage, the control of a 1.5 MW DFIG is presented. Then, the hybrid system including the two wind turbines is presented. Stability performances analysis is based on the verification of the standard operating parameters. The simulation is carried under Matlab/Simulink. Keywords: Wind turbine, PMSM, DFIG, MSC, GSC, MPPT, Lyapunov, Transmission gri

Electrification of Isolated Areas by Interconnecting Renewable Sources (ERD Project): Lessons Learned

Researchers from Switzerland and Morocco undertook a joint project to develop a technique for producing electrical energy from renewable primary energy sources to supply small networks of isolated consumers. Specific attention was paid to sustainable development issues, namely, the integration of social, environmental, technical and economic components. The project was carried out in the Ouneine Valley (Morocco). The project aimed to implement a technical transfer program and to improve the population’s ability to absorb innovations such as rural electrification by isolated micro-grid. The project also comprised a research component aimed at gaining an understanding of the interfaces between the technical and sociological levels