Receding-horizon adaptive second-order sliding mode control for doubly fed induction generator based wind turbines

C.EVANGELISTA; A.PISANO; PULESTON P.F.; E.USAI

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Lugar: New York; Año: 2017 vol. 25 p. 73 - 84

1063-6536

In this paper a novel adaptive Second-Order Sliding Mode technique to optimise the efficiency of certain types of variable-speed wind turbines is developed and analised. A revisited form of a recent adaptation algorithm is proposed to deal with the characteristicsand control requirements of Wind Energy Conversion Systems (WECS), particularly model uncertainties and fast disturbances due to gusty wind effects. The revisited algorithm is based on appropriate receding-horizon adaptation time windows rather than on fixed, adjacent and non overlapping ones. This modification, which enhances the reactivity of the adaptation strategy against fast varying uncertainties, represents the main theoretical novelty of this work. The proposed approach is successfully used to control a Doubly-Fed Induction Generator based wind turbine topology proving its suitability for this application area. The novel adaptive controller is extensively assessed through computer simulations over a full-order realistic model of the WECS under study.