Oscillatory stability analysis with high penetrations of large-scale photovoltaic generation

Shah, Rakibuzzaman, Mithulananthan, N. and Bansal, R. C. (2012) Oscillatory stability analysis with high penetrations of large-scale photovoltaic generation. Energy Conversion and Management, 65 420-429. doi:10.1016/j.enconman.2012.08.004

Author Shah, Rakibuzzaman
Mithulananthan, N.
Bansal, R. C.
Title Oscillatory stability analysis with high penetrations of large-scale photovoltaic generation
Journal name Energy Conversion and Management   Check publisher's open access policy
ISSN 0196-8904
Publication date 2012-08-04
Year available 2012
Sub-type Article (original research)
DOI 10.1016/j.enconman.2012.08.004
Volume 65
Start page 420
End page 429
Total pages 10
Place of publication London, United Kingdom
Publisher Elsevier
Collection year 2013
Language eng
Abstract Prompted by the need for clean energy sources, increasing amounts of photovoltaic (PV) generator is connected to the power system around the world, hence, affects many aspects the dynamic and operational characteristics of synchronous generator dominated power system. In this paper, the impact of large-scale PV generation on power system oscillation, especially the inter-area oscillation is studied. The effect of PV on inter-area mode is investigated in New England-New York test system for different level of penetrations and operating conditions. Analysis in the paper reveals that increased PV penetration could affect the critical inter-area mode detrimentally. A trajectory sensitivity based rotor angle norm is evaluated to explore the reason why PV generators are interacting negatively on critical inter-area mode. The primary basis of the method is to convert the PV generator with equivalent sized synchronous generator and evaluate the sensitivity by real power perturbation. The analysis reveals that integration of PV to the system creates higher angular separation among synchronous generators, results inter-area oscillations. A generator ranking based operating point adjustment method is proposed in this paper to minimize the angular separation. The results obtained indicate that the proposed method can effectively minimize the angular separation, hence, enhance the damping of inter-area mode.
Keyword Angular separation
Damping torque
Inter-area mode
Large-scale PV generator
Low frequency oscillatory stability
Trajectory sensitivity
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Information Technology and Electrical Engineering Publications
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Created: Mon, 22 Oct 2012, 16:49:27 EST by Mr Rakibuzzaman Shah on behalf of School of Information Technol and Elec Engineering