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A Hybrid Network Model for Small Signal Stability Analysis of Power Systems
Small signal stability analysis in a power system is typically concerned with electromechanical oscillations. For this purpose, it is adequate to model the transmission system using a constant admittance matrix. For torsional oscillations and HVDC interactions, the frequency of interest is much high...
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Published in: | IEEE transactions on power systems 2010-02, Vol.25 (1), p.443-451 |
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description | Small signal stability analysis in a power system is typically concerned with electromechanical oscillations. For this purpose, it is adequate to model the transmission system using a constant admittance matrix. For torsional oscillations and HVDC interactions, the frequency of interest is much higher and the constant admittance representation is not sufficient. This paper proposes a hybrid model, which allows the parts of the transmission network in the vicinity of HVDC converters or any other dynamic devices to be modeled with their dynamics and the remaining parts to be modeled as constant admittances. The proposed hybrid methodology for small signal stability assessment is the main contribution of this paper. The proposed methodology is validated against an electromagnetic transient simulation program (PSCAD/EMTDC) using time responses. The proposed model and two other small signal models are compared against each other in the frequency domain using modal analysis. |
doi_str_mv | 10.1109/TPWRS.2009.2036709 |
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For this purpose, it is adequate to model the transmission system using a constant admittance matrix. For torsional oscillations and HVDC interactions, the frequency of interest is much higher and the constant admittance representation is not sufficient. This paper proposes a hybrid model, which allows the parts of the transmission network in the vicinity of HVDC converters or any other dynamic devices to be modeled with their dynamics and the remaining parts to be modeled as constant admittances. The proposed hybrid methodology for small signal stability assessment is the main contribution of this paper. The proposed methodology is validated against an electromagnetic transient simulation program (PSCAD/EMTDC) using time responses. The proposed model and two other small signal models are compared against each other in the frequency domain using modal analysis.</description><identifier>ISSN: 0885-8950</identifier><identifier>EISSN: 1558-0679</identifier><identifier>DOI: 10.1109/TPWRS.2009.2036709</identifier><identifier>CODEN: ITPSEG</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Admittance ; Conferences ; Dynamic ac network model ; Dynamics ; Electrical impedance ; Frequency ; HVDC interactions ; HVDC transmission ; Hybrid power systems ; Matrix converters ; Methodology ; Networks ; Oscillations ; Power system analysis computing ; Power system modeling ; Power system stability ; PSCAD ; small signal stability ; Stability analysis</subject><ispartof>IEEE transactions on power systems, 2010-02, Vol.25 (1), p.443-451</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The proposed model and two other small signal models are compared against each other in the frequency domain using modal analysis.</description><subject>Admittance</subject><subject>Conferences</subject><subject>Dynamic ac network model</subject><subject>Dynamics</subject><subject>Electrical impedance</subject><subject>Frequency</subject><subject>HVDC interactions</subject><subject>HVDC transmission</subject><subject>Hybrid power systems</subject><subject>Matrix converters</subject><subject>Methodology</subject><subject>Networks</subject><subject>Oscillations</subject><subject>Power system analysis computing</subject><subject>Power system modeling</subject><subject>Power system stability</subject><subject>PSCAD</subject><subject>small signal stability</subject><subject>Stability analysis</subject><issn>0885-8950</issn><issn>1558-0679</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNqNkUlPwzAQhS0EEmX5A3CxOHEJjON4O1aITayiRRwtJ5mglLQGOxXKv8eliAMnLvP0NN8bafQIOWBwwhiY0-njy9PkJAcwaXCpwGyQERNCZyCV2SQj0Fpk2gjYJjsxzgBApsWI3Izp1VCGtqb32H_68EbvfI0dbXygk7nrOjppXxcuSe_Ktmv7gY6THWIbqW_oo__EBA6xx3ncI1uN6yLu_-gueb44n55dZbcPl9dn49us4hL6DJXiUJTSKdBOVAV3mLzLc8m0rkpQwBG5Zs4ZBc7UdQFQM9GUdYG10DXfJcfru-_Bfywx9nbexgq7zi3QL6NlUjGeg-TmX2heFLmRCT36g878MqRfo9VCSsYViATla6gKPsaAjX0P7dyFwTKwqybsdxN21YT9aSKFDtehFhF_A4JLVoiCfwHaWYL4</recordid><startdate>201002</startdate><enddate>201002</enddate><creator>Karawita, C.</creator><creator>Annakkage, U.D.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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source | IEEE Electronic Library (IEL) Journals |
subjects | Admittance Conferences Dynamic ac network model Dynamics Electrical impedance Frequency HVDC interactions HVDC transmission Hybrid power systems Matrix converters Methodology Networks Oscillations Power system analysis computing Power system modeling Power system stability PSCAD small signal stability Stability analysis |
title | A Hybrid Network Model for Small Signal Stability Analysis of Power Systems |
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