Diseño e implementación de esquemas no lineales de control para el suministro de potencia y estabilización de voltaje DC en un aerogenerador operando en una Microred

Abstract

Two non-linear control proposals were developed for the current, voltage, and power of a wind turbine. The main contribution of the proposed controllers is their simplicity of implementation and their robustness to modeling errors and external disturbances.

To evaluate the performance of the controllers, a test system was implemented where the ability of a wind turbine in an electrical system to follow power references and re-establish itself after a severe disturbance was evaluated.

Then, the configuration and characteristics of the electrical system and the converters used in the test system are described, in addition, the development and structure of the control equations is presented.

For the execution, the project was divided into two phases, in the first the wind turbine works in maximum power transfer mode and in the second the control structure is modified so that it can supply power references.

Similarly, the tests were divided into two parts, in the first, the proposed controllers with linear PIDs are compared and in the second, the wind turbine is subjected to severe working conditions to evaluate the performance of the non-linear controllers.