Development of a voltage and frequency control strategy for an autonomous LV network with distributed generators

Author

Au-Yeung, Justin ; Vanalme, Greet M A ; Myrzik, Johanna M A ; Karaliolios, Panagiotis ; Bongaerts, Martijn ; Bozelie, Jan ; Kling, Wil L.

Author_Institution

Univ. of Technol., Eindhoven, Netherlands

fYear

2009

fDate

1-4 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

This paper presents a novel control strategy to operate a low-voltage (LV) micro-grid in grid connected operation mode as well as autonomous operation mode. Depending on the inverter output impedance which is mainly resistive due to the LV cables a proper control strategy based on an unbalanced resistive droop approach is developed. The control strategy is verified by simulating fast changes of power production and simulating excess, shortage and average scenarios. Additionally, the control system can operate in an unbalanced network and can improve the active and reactive power distribution using a data communication system.

Keywords

distributed power generation; frequency control; power grids; voltage control; active power distribution; autonomous LV network; data communication system; distributed generators; frequency control strategy; inverter output impedance; low-voltage microgrid; reactive power distribution; unbalanced resistive droop; voltage control strategy; Cables; Communication system control; Control systems; Frequency control; Impedance; Paper technology; Production; Pulse width modulation inverters; Solar power generation; Voltage; Active and Reactive Power; Autonomous Operation; Data Communication System; Droop Control; LV Network; Micro-Grid; Output Impedance; Unbalanced Network;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference (UPEC), 2009 Proceedings of the 44th International

Conference_Location

Glasgow

Print_ISBN

978-1-4244-6823-2

Type

conf

Filename

5429459