Reactive power and voltage control in grid-connected wind farms: an online optimization based fast model predictive control approach

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Abstract

This paper presents the application of an online optimization based fast model predictive control scheme to grid-connected wind farms for reactive power and voltage control. A linear prediction model of the network was used to predict the behavior of the system for a certain prediction horizon, while a modified quadratic programming problem was used for the optimization process. The proposed controller was tested in a 5-bus test system hosting three sub-wind farms of total 36 MW active power production capacity connected in series to the external network. The controller performed its control action by changing the reactive power output of the sub-wind farms and voltage set-points of an online load tap changer transformer to respect the safety limit imposed on the bus voltages and desired reactive power exchange.

Original languageEnglish
Pages (from-to)35-44
Number of pages10
JournalElectrical Engineering
Volume97
Issue number1
Early online date16 Sep 2014
DOIs
Publication statusPublished - Mar 2015

Fingerprint

Online Optimization
Model predictive control
Model Predictive Control
Reactive power
Power control
Voltage control
Farms
Voltage
Grid
Controller
Linear Prediction
Controllers
Quadratic programming
Electric potential
Transformer
Test System
Process Optimization
Quadratic Programming
Prediction Model
Set of points

Bibliographical note

Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

Keywords

  • Model predictive control
  • Reactive power control
  • Grid integration

Cite this

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