An approach to control a photovoltaic generator to damp low frequency oscillations in an emerging distribution system

Dahal, S., Mithulananthan, N. and Saha, T. (2011). An approach to control a photovoltaic generator to damp low frequency oscillations in an emerging distribution system. In: , 2011 IEEE Power and Energy Society General Meeting Proceedings. 2011 IEEE Power and Energy Society General Meeting (IEEE PES-GM), Detroit, MI, United States, (1-8). 24-28 July 2011.


Author Dahal, S.
Mithulananthan, N.
Saha, T.
Title of paper An approach to control a photovoltaic generator to damp low frequency oscillations in an emerging distribution system
Conference name 2011 IEEE Power and Energy Society General Meeting (IEEE PES-GM)
Conference location Detroit, MI, United States
Conference dates 24-28 July 2011
Proceedings title 2011 IEEE Power and Energy Society General Meeting Proceedings
Journal name IEEE Power and Energy Society General Meeting
Place of Publication San Diego, United States
Publisher IEEE
Publication Year 2011
Sub-type Fully published paper
DOI 10.1109/PES.2011.6039098
ISBN 9781457710018
9781457710001
ISSN 1944-9925
Start page 1
End page 8
Total pages 8
Collection year 2012
Language eng
Abstract/Summary Factors like diminishing fossil fuels and environmental concerns are driving the integration of locally available energy resources at a distribution level. As a result, a number of stability issues have become a concern for utilities at distribution systems. One of the important stability concerns is the small signal stability caused by electromechanical or other low frequency oscillations. The oscillations with lower values of frequency and damping may cause instabilities. In such cases, a suitable control methodology must be applied to ensure the stability of an emerging distribution system. In this paper, a methodology to control the power factor of photovoltaic generator (PV) is proposed for enhancement of system stability. The impact of PV power factor control on a low damped mode is assessed by using both eigenvalue sensitivity and time domain analysis. An appropriate signal for the proposed controller is identified by residue technique. The effectiveness of the controller is tested in IEEE 43 bus test distribution system with distributed generators. Results show that reactive power support from PV is better for damping of critical mode.
Keyword Damping controller
Distributed generation
Eigenvalue analysis
Photovoltaic generation
Small signal stability
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Thu, 25 Aug 2011, 11:02:49 EST by Mr Sudarshan Dahal on behalf of School of Information Technol and Elec Engineering