dc.contributor.author | Issa, Walid | |
dc.contributor.author | Abusara, Mohammad | |
dc.contributor.author | Sharkh, Suleiman | |
dc.date.accessioned | 2014-11-19T15:32:21Z | |
dc.date.issued | 2014-09-23 | |
dc.description.abstract | In inverter-based microgrids, the paralleled inverters need to work in grid-connected mode and stand-alone mode and to transfer seamlessly between the two modes. In grid-connected mode, the inverters control the amount of power injected into the grid. In stand-alone mode, however, the inverters control the island voltage while the output power is dictated by the load. This can be achieved using the droop control. Inverters can have different power set-points during grid-connected mode but in stand-alone mode they all need their power set-points to be adjusted according to their power ratings. However, during sudden unintentional islanding (due to loss of mains), transient power can flow from inverters with high power setpoints to inverters with low power set-points, which can raise the DC link voltage of the inverters causing them to shut down. This paper investigates the transient circulating power between paralleled inverters during unintentional islanding and proposes a controller to limit it. The controller monitors the DC link voltage and adjusts the power set-point in proportion to the rise in the voltage. A small signal model of an islanded microgrid is developed and used to design the controller. Simulation and experimental results are presented to validate the design. | en_GB |
dc.identifier.citation | Vol, 30 (8), pp. 4573 - 4584 | en_GB |
dc.identifier.doi | 10.1109/TPEL.2014.2359792 | |
dc.identifier.uri | http://hdl.handle.net/10871/15901 | |
dc.language.iso | en | en_GB |
dc.publisher | IEEE | en_GB |
dc.subject | Inverters | en_GB |
dc.subject | Mathematical model | en_GB |
dc.subject | Microgrids | en_GB |
dc.subject | Power generation | en_GB |
dc.subject | Reactive power | en_GB |
dc.subject | Voltage control | en_GB |
dc.title | Control of Transient Power during Unintentional Islanding of Microgrids | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2014-11-19T15:32:21Z | |
dc.identifier.issn | 0885-8993 | |
dc.description | Copyright © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_GB |
dc.identifier.journal | IEEE Transactions on Power Electronics | en_GB |