A Method for the Evaluation of Generator Damping During Low-Frequency Oscillations
A new generator phasor measurement unit can provide a generator internal response during transient periods, thereby enabling online evaluation of generator damping in detail. In this paper, a method for the online detailed evaluation of the generator damping contribution during oscillation periods b...
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| Veröffentlicht in: | IEEE transactions on power systems 2019-01, Vol.34 (1), p.109-119 |
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| container_title | IEEE transactions on power systems |
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| creator | Sun, Zhenglong Cai, Guowei Yang, Deyou Liu, Cheng Wang, Bo Wang, Lixin |
| description | A new generator phasor measurement unit can provide a generator internal response during transient periods, thereby enabling online evaluation of generator damping in detail. In this paper, a method for the online detailed evaluation of the generator damping contribution during oscillation periods based on the damping loss factor (DLF) and multi-scale chirplet sparse signal decomposition (MCSSD) is proposed. First, the DLF in a simple elastic oscillation system, which can be used to quantitatively evaluate the damping characteristics of components, is introduced. After analyzing the feasibility of using the DLF during low-frequency oscillation, the generator damping loss factor (GDLF) is established to quantitatively evaluate the generator damping contribution, including the effects of the excitation system, governor system, and generator winding. Next, the modal composition of the generator dissipation energy is studied to extend the application of the GDLF to a multi-machine power system. Finally, a method for the online evaluation of generator damping during low-frequency oscillation based on the GDLF and MCSSD is presented. The proposed method is examined in detail using a single-machine infinite-bus system and then further demonstrated by applying it to a practical power system with multiple electromechanical oscillations. |
| doi_str_mv | 10.1109/TPWRS.2018.2868717 |
| format | Article |
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In this paper, a method for the online detailed evaluation of the generator damping contribution during oscillation periods based on the damping loss factor (DLF) and multi-scale chirplet sparse signal decomposition (MCSSD) is proposed. First, the DLF in a simple elastic oscillation system, which can be used to quantitatively evaluate the damping characteristics of components, is introduced. After analyzing the feasibility of using the DLF during low-frequency oscillation, the generator damping loss factor (GDLF) is established to quantitatively evaluate the generator damping contribution, including the effects of the excitation system, governor system, and generator winding. Next, the modal composition of the generator dissipation energy is studied to extend the application of the GDLF to a multi-machine power system. Finally, a method for the online evaluation of generator damping during low-frequency oscillation based on the GDLF and MCSSD is presented. 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(IEEE) 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-5d6b79e3a57049549663e82c90338aaae9d03951e044dd150b9f360ba7ea47d83</citedby><cites>FETCH-LOGICAL-c361t-5d6b79e3a57049549663e82c90338aaae9d03951e044dd150b9f360ba7ea47d83</cites><orcidid>0000-0002-9670-9780 ; 0000-0003-4652-8989 ; 0000-0002-2689-9910</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8454476$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8454476$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Sun, Zhenglong</creatorcontrib><creatorcontrib>Cai, Guowei</creatorcontrib><creatorcontrib>Yang, Deyou</creatorcontrib><creatorcontrib>Liu, Cheng</creatorcontrib><creatorcontrib>Wang, Bo</creatorcontrib><creatorcontrib>Wang, Lixin</creatorcontrib><title>A Method for the Evaluation of Generator Damping During Low-Frequency Oscillations</title><title>IEEE transactions on power systems</title><addtitle>TPWRS</addtitle><description>A new generator phasor measurement unit can provide a generator internal response during transient periods, thereby enabling online evaluation of generator damping in detail. In this paper, a method for the online detailed evaluation of the generator damping contribution during oscillation periods based on the damping loss factor (DLF) and multi-scale chirplet sparse signal decomposition (MCSSD) is proposed. First, the DLF in a simple elastic oscillation system, which can be used to quantitatively evaluate the damping characteristics of components, is introduced. After analyzing the feasibility of using the DLF during low-frequency oscillation, the generator damping loss factor (GDLF) is established to quantitatively evaluate the generator damping contribution, including the effects of the excitation system, governor system, and generator winding. Next, the modal composition of the generator dissipation energy is studied to extend the application of the GDLF to a multi-machine power system. Finally, a method for the online evaluation of generator damping during low-frequency oscillation based on the GDLF and MCSSD is presented. The proposed method is examined in detail using a single-machine infinite-bus system and then further demonstrated by applying it to a practical power system with multiple electromechanical oscillations.</description><subject>Damping</subject><subject>damping ratio</subject><subject>Feasibility studies</subject><subject>generator damping loss factor</subject><subject>Generators</subject><subject>law of energy conservation</subject><subject>Low-frequency oscillation</subject><subject>Measuring instruments</subject><subject>Oscillations</subject><subject>Oscillators</subject><subject>phasor measurement unit</subject><subject>Phasor measurement units</subject><subject>Power system stability</subject><subject>Transient analysis</subject><issn>0885-8950</issn><issn>1558-0679</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1PwkAQhjdGExH9A3rZxHNxtvt9JHxpgsEgxuNmabdSUrq4bTX8e1sgnt7DO8_M5EHonsCAENBPq7fP5fsgBqIGsRJKEnmBeoRzFYGQ-hL1QCkeKc3hGt1U1RYARFv00HKIX1298SnOfMD1xuHJjy0aW-e-xD7DM1e6YOu2G9vdPi-_8LgJXcz9bzQN7rtxZXLAiyrJi-JIVbfoKrNF5e7O2Ucf08lq9BzNF7OX0XAeJVSQOuKpWEvtqOUSmOZMC0GdihMNlCprrdMpUM2JA8bSlHBY64wKWFvpLJOpon30eNq7D759o6rN1jehbE-amHBNNWjSTcWnqST4qgouM_uQ72w4GAKmc2eO7kznzpzdtdDDCcqdc_-AYpwxKegfeiJqVg</recordid><startdate>201901</startdate><enddate>201901</enddate><creator>Sun, Zhenglong</creator><creator>Cai, Guowei</creator><creator>Yang, Deyou</creator><creator>Liu, Cheng</creator><creator>Wang, Bo</creator><creator>Wang, Lixin</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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In this paper, a method for the online detailed evaluation of the generator damping contribution during oscillation periods based on the damping loss factor (DLF) and multi-scale chirplet sparse signal decomposition (MCSSD) is proposed. First, the DLF in a simple elastic oscillation system, which can be used to quantitatively evaluate the damping characteristics of components, is introduced. After analyzing the feasibility of using the DLF during low-frequency oscillation, the generator damping loss factor (GDLF) is established to quantitatively evaluate the generator damping contribution, including the effects of the excitation system, governor system, and generator winding. Next, the modal composition of the generator dissipation energy is studied to extend the application of the GDLF to a multi-machine power system. Finally, a method for the online evaluation of generator damping during low-frequency oscillation based on the GDLF and MCSSD is presented. The proposed method is examined in detail using a single-machine infinite-bus system and then further demonstrated by applying it to a practical power system with multiple electromechanical oscillations.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TPWRS.2018.2868717</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-9670-9780</orcidid><orcidid>https://orcid.org/0000-0003-4652-8989</orcidid><orcidid>https://orcid.org/0000-0002-2689-9910</orcidid></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Damping damping ratio Feasibility studies generator damping loss factor Generators law of energy conservation Low-frequency oscillation Measuring instruments Oscillations Oscillators phasor measurement unit Phasor measurement units Power system stability Transient analysis |
| title | A Method for the Evaluation of Generator Damping During Low-Frequency Oscillations |
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