Increasing distributed generation penetration in multiphase distribution networks considering grid losses, maximum loading factor and bus voltage limits
MetadataShow full item record
This paper is a postprint of a paper submitted to and accepted for publication in IET Generation, Transmission and Distribution and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library
This study proposes a new iterative algorithm to improve the performance of multiphase distribution networks by proper placement and sizing of distributed generation (DG) units and single-phase capacitors. The approach consists of utilising the positive-sequence voltage ratio Vcollapse/Vno-load to identify the weakest three-phase and single-phase buses for the installation of DG units and shunt capacitors, respectively. DG penetration levels are increased by evaluating their impacts on voltage profile, grid losses and voltage stability margin while considering the voltage limits at all buses. Detailed simulations are performed for the placement and sizing of a doubly fed induction generator (DFIG) and single-phase capacitors in the IEEE multiphase 34 node test feeder using the DIgSILENT PowerFactory software. The impacts of DFIG on voltage profile, active power loss, maximum loading factor and voltage unbalance factor are highlighted.
Showing items related by title, author, creator and subject.
Juanuwattanakul, Parachai (2012)Voltage instabilities and subsequent system collapses are considered as growing concerns in modern multiphase distribution networks as they are progressively forced to operate closer to their stability limits due to many ...
Juanuwattanakul, Parachai; Masoum, Mohammad; Niyomsak, C.; Mohseni, Mansour (2012)This paper presents an effective method for placement of DG units in multiphase distribution networks based on system voltage profile. The approach consists of utilizing the positive sequence voltage ratio Vcollapse/Vno-load ...
Application of SVC and single-phase shunt capacitor to improve voltage profiles and reduce losses of unbalanced multiphase smart grid with PEV charging stationsJuanuwattanakul, Parachai; Masoum, Mohammad Sherkat; Hajforoosh, S. (2012)In smart grids, the conventional approach of locating compensation devices based on the forecasted daily load curves is not realistic as the locations, times and durations of some loads such as plug-in electric vehicles ...