Enhanced Local Grid Voltage Support Method for High Penetration of Distributed Generators
ICELIE/IES Industry Forum/37th Annual Conference of the IEEE Industrial-Electronics-Society (IECON), Melbourne, Australia, 7 - 10 November 2011, pp.2481-2485, (Full Text)
- Publication Type: Conference Paper / Full Text
- Doi Number: 10.1109/iecon.2011.6119699
- City: Melbourne
- Country: Australia
- Page Numbers: pp.2481-2485
- Dokuz Eylül University Affiliated: No
Abstract
Grid voltage rise and thermal loading of network components are the most remarkable barriers to allow high number of distributed generator (DG) connections on the medium voltage (MV) and low voltage (LV) electricity networks. The other barriers such as grid power quality (harmonics, voltage unbalance, flicker etc.) and network protection mechanisms can be figured out once the maximum DG connection capacity of the network is reached. In this paper, additional reactive power reserve of inverter interfaced DGs is exploited to lower the grid voltage level by means of location-adaptive Q(U) droop function. The proposed method aims to achieve less grid voltage violations thus more DG connection on the electricity distribution networks can be allowed.