Energies 2014, 7(1), 278-294; doi:10.3390/en7010278
Article

Analysis of the Dynamic Performance of Self-Excited Induction Generators Employed in Renewable Energy Generation

Received: 5 November 2013; in revised form: 5 December 2013 / Accepted: 7 January 2014 / Published: 10 January 2014
(This article belongs to the Special Issue Smart Grids: The Electrical Power Network and Communication System)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Incentives, such as the Feed-in-tariff are expected to lead to continuous increase in the deployment of Small Scale Embedded Generation (SSEG) in the distribution network. Self-Excited Induction Generators (SEIG) represent a significant segment of potential SSEG. The quality of SEIG output voltage magnitude and frequency is investigated in this paper to support the SEIG operation for different network operating conditions. The dynamic behaviour of the SEIG resulting from disconnection, reconnection from/to the grid and potential operation in islanding mode is studied in detail. The local load and reactive power supply are the key factors that determine the SEIG performance, as they have significant influence on the voltage and frequency change after disconnection from the grid. Hence, the aim of this work is to identify the optimum combination of the reactive power supply (essential for self excitation of the SEIG) and the active load (essential for balancing power generation and demand). This is required in order to support the SEIG operation after disconnection from the grid, during islanding and reconnection to the grid. The results show that the generator voltage and speed (frequency) can be controlled and maintained within the statuary limits. This will enable safe disconnection and reconnection of the SEIG from/to the grid and makes it easier to operate in islanding mode.
Keywords: renewable sources; DG’s; islanding operation; induction machines control
PDF Full-text Download PDF Full-Text [430 KB, uploaded 10 January 2014 11:08 CET]

Export to BibTeX |
EndNote


MDPI and ACS Style

Farrag, M.E.A.; Putrus, G.A. Analysis of the Dynamic Performance of Self-Excited Induction Generators Employed in Renewable Energy Generation. Energies 2014, 7, 278-294.

AMA Style

Farrag MEA, Putrus GA. Analysis of the Dynamic Performance of Self-Excited Induction Generators Employed in Renewable Energy Generation. Energies. 2014; 7(1):278-294.

Chicago/Turabian Style

Farrag, Mohamed E.A.; Putrus, Ghanim A. 2014. "Analysis of the Dynamic Performance of Self-Excited Induction Generators Employed in Renewable Energy Generation." Energies 7, no. 1: 278-294.

Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert