Demonstration of Voltage Control in a Real Distribution System using Model Predictive Control
Artikel i vetenskaplig tidskrift, 2017

This paper presents the results from field tests that were carried out with the aim of verifying the performance of a model predictive control-based voltage controller. A voltage source converter capable of producing or consuming 4 MVAr was used as the reactive power source, which was able to influence the voltage magnitude at a remote bus within a real distribution system in Gothenburg, Sweden. The voltage controller is designed to maintain the remote bus voltage within a pre-defined range while respecting the reactive power output capability of the voltage source converter and an objective of minimum changes to the reference value of its local reactive power controller. Results from the field tests demonstrate that the voltage controller was able to successfully regulate the voltage even with significant errors in the state-space prediction model. An important lesson learned from the field test is that a smoothened voltage measurement feedback is critical to a satisfactory functioning of the controller. Furthermore, it is recommended to design the voltage controller to observe an initial delay, before it is activated for bus voltage control- this would deter it from unnecessarily reacting at the very instant it is brought online.

Model predictive control

voltage control

distribution systems

demonstration

Författare

Pavan Balram

Chalmers, Energi och miljö, Elkraftteknik

Ola Carlson

Chalmers, Energi och miljö, Elkraftteknik

Anh Tuan Le

Chalmers, Energi och miljö, Elkraftteknik

IET Generation, Transmission and Distribution

1751-8687 (ISSN) 1751-8695 (eISSN)

Vol. 11 16 3922-3929

Styrkeområden

Energi

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1049/iet-gtd.2016.1595