Stability in the nowadays distribution power system is endangered by interaction problems that may arise from newly added power-electronics based power devices. Recently, a new concept to deal with this higher frequency instability, the active damper, has been proposed. The active damper is a power electronics based power device, which provides an adjustable damping capability to the power system where the voltage harmonic instability is measured. It can stabilize by adjusting the equivalent node impedance with its plug and play feature. This feature gives many degrees of freedom of its installation point when the system has many nodes. Therefore, this paper addresses the proper placement of an active damper in an unstable small-scale power distribution system. A time-domain model of the Cigre benchmark low-vltage network is used as a test field. The result shows the active damper location is important for stabilizing the overall network and the active damper should be placed near to the problematic power devices. Finally, the unstable network with five inverters is able to obtain stability by adopting an active damper to the place where its ability becomes the most effective.
|Titel||Proceedings of the IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015|
|Status||Udgivet - jun. 2015|
|Begivenhed||IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015 - Pullman Aachen Quellenhof hotel, Aachen, Tyskland|
Varighed: 22 sep. 2015 → 25 sep. 2015
|Konference||IEEE 6th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2015|
|Lokation||Pullman Aachen Quellenhof hotel|
|Periode||22/09/2015 → 25/09/2015|