LEICI   25638
INSTITUTO DE INVESTIGACIONES EN ELECTRONICA, CONTROL Y PROCESAMIENTO DE SEÑALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
A Second Order Sliding Power Control & Resonant Filtering Approach to Mitigate Grid Unbalance Effects on a DOIG Wind Energy Based System
Autor/es:
DANIEL FERNANDEZ; FERNANDO INTHAMOUSSOU; FERNANDO VALENCIAGA
Lugar:
Málaga
Reunión:
Congreso; International Conference on Renewable Energies and Power Quality (ICREPQ?17); 2017
Resumen:
This paper presents a multivariable power control designapplied to a DFIG Wind Energy Conversion based System (WECS). The multiplecontrol objectives pursued in this work include not only tracking temporalprofiles of active and reactive power grid injection but also regulate someimportant internal variables like the DC bus voltage. To fulfil these targets amultivariable control scheme is developed following second order sliding mode techniques.This theoretical framework allows synthesizing controllers with attractivefeatures like finite time convergence, robustness against externalperturbations and unmodeled dynamics, simple implementation, etc. To endorsethe control system with grid support features under voltage unbalances themultivariable SOSM controller is combined with a set of resonant filters. Thismixed scheme allows to substantially reduce the oscillations of simple anddouble grid frequency on the electric torque and the power injected into thegrid. The overall performance of this control proposal is evaluated usingrepresentative simulations.