http://repositoriodigital.ipn.mx/handle/123456789/7629 2026-05-02T12:59:29Z 2026-05-02T12:59:29Z Carranza, O. Figueres, E. Garcerá, G. Ortega, R. Trujillo, C.L. http://repositoriodigital.ipn.mx/handle/123456789/8934 2019-10-02T17:07:10Z 2012-12-12T00:00:00Z

Title: Study of the control structure of a small wind turbine with permanent magnet synchronous generator Authors: Carranza, O.; Figueres, E.; Garcerá, G.; Ortega, R.; Trujillo, C.L. Abstract: This paper presents the analysis of the two control structures used in wind generation systems with permanent magnet synchronous generators, variable speed and fixed pitch, to determine which structure is most appropriate for implementation. These control structures are speed control and torque control. The analysis considers all the elements of wind power generation system, with greater emphasis on the model of the turbine where mechanical torque is considered as a system variable and not as in other studies where it is considered as internal disturbance in the system. The analysis is developed so that the control structure is independent of AC/DC converter that is used in the system. From the analysis is obtained that the speed control can be stable using classical control techniques because it is a nonminimum phase system and the torque control is unstable because it has poles and zeros in the right half plane, very low frequency and very close to each other, so it is very difficult to control using classical control theory. In the evaluation of the speed control structure, the AC/DC converter is Three-phase rectifier Boost in Discontinuous Conduction Mode with an input filter and a Peak Current Control and to avoid the need of mechanical sensors, a Linear Kalman Filter has been chosen to estimate the generator speed. Description: This paper presents the analysis of the two control structures used in wind generation systems with permanent magnet synchronous generators, variable speed and fixed pitch, to determine which structure is most appropriate for implementation. These control structures are speed control and torque control. The analysis considers all the elements of wind power generation system, with greater emphasis on the model of the turbine where mechanical torque is considered as a system variable and not as in other studies where it is considered as internal disturbance in the system. The analysis is developed so that the control structure is independent of AC/DC converter that is used in the system. From the analysis is obtained that the speed control can be stable using classical control techniques because it is a nonminimum phase system and the torque control is unstable because it has poles and zeros in the right half plane, very low frequency and very close to each other, so it is very difficult to control using classical control theory. In the evaluation of the speed control structure, the AC/DC converter is Three-phase rectifier Boost in Discontinuous Conduction Mode with an input filter and a Peak Current Control and to avoid the need of mechanical sensors, a Linear Kalman Filter has been chosen to estimate the generator speed.

2012-12-12T00:00:00Z Carranza, O. Figueres, E. Garcera, G. Ortega, R. http://repositoriodigital.ipn.mx/handle/123456789/8933 2019-10-02T17:05:10Z 2012-12-12T00:00:00Z

Title: Comparison of current control for low harmonic distortion applied to a small wind generation system with permanent magnet synchronous generator Authors: Carranza, O.; Figueres, E.; Garcera, G.; Ortega, R. Abstract: This paper presents a comparison between of two type of current control to reduce the THDi and increase the PF in a Three-Phase Boost Rectifier driving a small wind turbine. The two types of current controls are peak current mode control and average current mode control It is used as the input stage of small wind turbines with permanent magnet synchronous generators operating at variable speed. The Boost Rectifier output is connected to an inverter which injects the energy to a distribution power grid. The operation in discontinuous conduction mode allows significantly reducing the Total Harmonic Distortion of the current in the small wind turbine. Description: This paper presents a comparison between of two type of current control to reduce the THDi and increase the PF in a Three-Phase Boost Rectifier driving a small wind turbine. The two types of current controls are peak current mode control and average current mode control It is used as the input stage of small wind turbines with permanent magnet synchronous generators operating at variable speed. The Boost Rectifier output is connected to an inverter which injects the energy to a distribution power grid. The operation in discontinuous conduction mode allows significantly reducing the Total Harmonic Distortion of the current in the small wind turbine.

2012-12-12T00:00:00Z