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

J Auyeung, G M A Vanalme,J M A Myrzik,P Karaliolios,M Bongaerts,Jan Bozelie,W L Kling

Universities Power Engineering Conference（2009）

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摘要

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.

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关键词

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,active and reactive power,autonomous operation,droop control,lv network,micro-grid,output impedance,unbalanced network,meteorology,reactive power,low voltage,impedance,control system

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