dc.contributor.author | D'Arco, Salvatore | |
dc.contributor.author | Suul, Jon Are Wold | |
dc.contributor.author | Fosso, Olav B | |
dc.date.accessioned | 2016-01-11T10:46:48Z | |
dc.date.accessioned | 2016-03-09T15:03:43Z | |
dc.date.available | 2016-01-11T10:46:48Z | |
dc.date.available | 2016-03-09T15:03:43Z | |
dc.date.issued | 2015 | |
dc.identifier.citation | International Journal of Electrical Power and Energy Systems 2015, 72:3-15 | nb_NO |
dc.identifier.issn | 0142-0615 | |
dc.identifier.uri | http://hdl.handle.net/11250/2381913 | |
dc.description.abstract | The concept of Virtual Synchronous Machines (VSMs) is emerging as a flexible approach for controlling power electronic converters in grid-connected as well as in stand-alone or microgrid applications. Several VSM implementations have been proposed, with the emulation of inertia and damping of a traditional Synchronous Machine (SM) as their common feature. This paper investigates a VSM implementation based on a Voltage Source Converter (VSC), where a virtual swing equation provides the phase orientation of cascaded voltage and current controllers in a synchronous reference frame. The control system also includes a virtual impedance and an outer loop frequency droop controller which is functionally equivalent to the governor of a traditional SM. The inherent capability of the investigated VSM implementation to operate in both grid-connected and islanded mode is demonstrated by numerical simulations. Then, a linearized small-signal model of the VSM operated in islanded mode while feeding a local load is developed and verified by comparing its dynamic response to the time-domain simulation of a nonlinear system model. Finally, this small-signal model is applied to identify the dominant modes of the system and to investigate their parametric sensitivity. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Elsevier | nb_NO |
dc.title | Small-signal modeling and parametric sensitivity of a virtual synchronous machine in islanded operation | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.type | Journal article | en_GB |
dc.date.updated | 2016-01-11T10:46:48Z | |
dc.source.journal | International Journal of Electrical Power and Energy Systems | nb_NO |
dc.identifier.doi | 10.1016/j.ijepes.2015.02.005 | |
dc.identifier.cristin | 1236170 | |
dc.description.localcode | 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) | nb_NO |