Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator
Purpose The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper windin...
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| Veröffentlicht in: | Compel 2018-01, Vol.37 (1), p.375-385 |
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| creator | Qiu, Hongbo Fan, Xiaobin Feng, Jianqin Yang, Cunxiang |
| description | Purpose
The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper winding is a key component for ensuring the reliable operation of generators. Therefore, it is important to study the distribution characteristics and the influence factors of eddy current loss. Taking a 24-MW bulb tubular turbine generator as a reference, the influence factors that affect the eddy current loss of damper winding are analyzed.
Design/methodology/approach
A two-dimensional (2-D) electromagnetic field model of the generator is established, and the correctness of the model is verified by comparing simulation results and experiment data. The eddy current losses of damper winding in various conditions are calculated by using the finite element method.
Findings
It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss of the generator rotor. When the generator is installed with magnetic slot wedges, the distribution characteristic of eddy current loss is obtained through the study of the eddy current density distributions in the damper bars. The variations of eddy current losses with time are gained when the generator has different permeability slot wedges, pole arc coefficients and pole shoe magnetic saturation degrees.
Practical implications
The study of this paper provides a theoretical reference for the design and optimization of bulb tubular turbine generator structure.
Originality/value
The research can help enhance the understanding of eddy current distribution characteristics and influence factors of eddy current loss in bulb tubular turbine generator. |
| doi_str_mv | 10.1108/COMPEL-11-2016-0488 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1989908580</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1989908580</sourcerecordid><originalsourceid>FETCH-LOGICAL-c250t-268dc02d9edc924fd73538933a629b1ab3617e9f41dc6ef88b7a74b1a04233bb3</originalsourceid><addsrcrecordid>eNp1UU1LAzEQDaJgrf4CLwHP0XxtNjlKqVpoqQfFY8hn2bLN1uwu4r83Zb14cC5vYN6b4b0B4Jbge0KwfFhsN6_LNSIEUUwEwlzKMzCjuOKoElicgxlmjCIiuLoEV32_x6VUhWdgt0qxHUNyAUbjhi73cOigiTG4AQbvv6Ebcw5pgG3X97CL0JvDMWT41STfpB1sEqQcbj6gHVsLh7GAyQWzbVKAu5BCNmXtNbiIpu3DzS_OwfvT8m3xgtbb59XicY0crfCAqJDeYepV8E5RHn3NKiYVY0ZQZYmxTJA6qMiJdyJEKW1tal4GmFPGrGVzcDftPebucwz9oPfdmFM5qYmSSmFZSVxYbGK5XFzlEPUxNweTvzXB-pSonhItvT4lqk-JFhWdVOFQTLX-H9GfN7AfiQl4vQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1989908580</pqid></control><display><type>article</type><title>Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator</title><source>Emerald Journals</source><creator>Qiu, Hongbo ; Fan, Xiaobin ; Feng, Jianqin ; Yang, Cunxiang</creator><creatorcontrib>Qiu, Hongbo ; Fan, Xiaobin ; Feng, Jianqin ; Yang, Cunxiang</creatorcontrib><description>Purpose
The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper winding is a key component for ensuring the reliable operation of generators. Therefore, it is important to study the distribution characteristics and the influence factors of eddy current loss. Taking a 24-MW bulb tubular turbine generator as a reference, the influence factors that affect the eddy current loss of damper winding are analyzed.
Design/methodology/approach
A two-dimensional (2-D) electromagnetic field model of the generator is established, and the correctness of the model is verified by comparing simulation results and experiment data. The eddy current losses of damper winding in various conditions are calculated by using the finite element method.
Findings
It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss of the generator rotor. When the generator is installed with magnetic slot wedges, the distribution characteristic of eddy current loss is obtained through the study of the eddy current density distributions in the damper bars. The variations of eddy current losses with time are gained when the generator has different permeability slot wedges, pole arc coefficients and pole shoe magnetic saturation degrees.
Practical implications
The study of this paper provides a theoretical reference for the design and optimization of bulb tubular turbine generator structure.
Originality/value
The research can help enhance the understanding of eddy current distribution characteristics and influence factors of eddy current loss in bulb tubular turbine generator.</description><identifier>ISSN: 0332-1649</identifier><identifier>EISSN: 2054-5606</identifier><identifier>DOI: 10.1108/COMPEL-11-2016-0488</identifier><language>eng</language><publisher>Bradford: Emerald Publishing Limited</publisher><subject>Bars ; Cogging ; Computational mathematics ; Computer simulation ; Current distribution ; Current loss ; Design optimization ; Eddy current testing ; Eddy currents ; Electric currents ; Electromagnetic fields ; Electromagnetism ; Experiments ; Finite element method ; Generators ; Harmonic analysis ; Hydroelectric power ; Induction heating ; Influence ; Load ; Magnetic permeability ; Magnetic saturation ; Simulation ; Software ; Studies ; Turbines ; Turbogenerators ; Two dimensional analysis ; Two dimensional models ; Wedges ; Winding</subject><ispartof>Compel, 2018-01, Vol.37 (1), p.375-385</ispartof><rights>Emerald Publishing Limited</rights><rights>Emerald Publishing Limited 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c250t-268dc02d9edc924fd73538933a629b1ab3617e9f41dc6ef88b7a74b1a04233bb3</citedby><cites>FETCH-LOGICAL-c250t-268dc02d9edc924fd73538933a629b1ab3617e9f41dc6ef88b7a74b1a04233bb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.emerald.com/insight/content/doi/10.1108/COMPEL-11-2016-0488/full/html$$EHTML$$P50$$Gemerald$$H</linktohtml><link.rule.ids>314,776,780,961,11614,27901,27902,52664</link.rule.ids></links><search><creatorcontrib>Qiu, Hongbo</creatorcontrib><creatorcontrib>Fan, Xiaobin</creatorcontrib><creatorcontrib>Feng, Jianqin</creatorcontrib><creatorcontrib>Yang, Cunxiang</creatorcontrib><title>Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator</title><title>Compel</title><description>Purpose
The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper winding is a key component for ensuring the reliable operation of generators. Therefore, it is important to study the distribution characteristics and the influence factors of eddy current loss. Taking a 24-MW bulb tubular turbine generator as a reference, the influence factors that affect the eddy current loss of damper winding are analyzed.
Design/methodology/approach
A two-dimensional (2-D) electromagnetic field model of the generator is established, and the correctness of the model is verified by comparing simulation results and experiment data. The eddy current losses of damper winding in various conditions are calculated by using the finite element method.
Findings
It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss of the generator rotor. When the generator is installed with magnetic slot wedges, the distribution characteristic of eddy current loss is obtained through the study of the eddy current density distributions in the damper bars. The variations of eddy current losses with time are gained when the generator has different permeability slot wedges, pole arc coefficients and pole shoe magnetic saturation degrees.
Practical implications
The study of this paper provides a theoretical reference for the design and optimization of bulb tubular turbine generator structure.
Originality/value
The research can help enhance the understanding of eddy current distribution characteristics and influence factors of eddy current loss in bulb tubular turbine generator.</description><subject>Bars</subject><subject>Cogging</subject><subject>Computational mathematics</subject><subject>Computer simulation</subject><subject>Current distribution</subject><subject>Current loss</subject><subject>Design optimization</subject><subject>Eddy current testing</subject><subject>Eddy currents</subject><subject>Electric currents</subject><subject>Electromagnetic fields</subject><subject>Electromagnetism</subject><subject>Experiments</subject><subject>Finite element method</subject><subject>Generators</subject><subject>Harmonic analysis</subject><subject>Hydroelectric power</subject><subject>Induction heating</subject><subject>Influence</subject><subject>Load</subject><subject>Magnetic permeability</subject><subject>Magnetic saturation</subject><subject>Simulation</subject><subject>Software</subject><subject>Studies</subject><subject>Turbines</subject><subject>Turbogenerators</subject><subject>Two dimensional analysis</subject><subject>Two dimensional models</subject><subject>Wedges</subject><subject>Winding</subject><issn>0332-1649</issn><issn>2054-5606</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1UU1LAzEQDaJgrf4CLwHP0XxtNjlKqVpoqQfFY8hn2bLN1uwu4r83Zb14cC5vYN6b4b0B4Jbge0KwfFhsN6_LNSIEUUwEwlzKMzCjuOKoElicgxlmjCIiuLoEV32_x6VUhWdgt0qxHUNyAUbjhi73cOigiTG4AQbvv6Ebcw5pgG3X97CL0JvDMWT41STfpB1sEqQcbj6gHVsLh7GAyQWzbVKAu5BCNmXtNbiIpu3DzS_OwfvT8m3xgtbb59XicY0crfCAqJDeYepV8E5RHn3NKiYVY0ZQZYmxTJA6qMiJdyJEKW1tal4GmFPGrGVzcDftPebucwz9oPfdmFM5qYmSSmFZSVxYbGK5XFzlEPUxNweTvzXB-pSonhItvT4lqk-JFhWdVOFQTLX-H9GfN7AfiQl4vQ</recordid><startdate>20180102</startdate><enddate>20180102</enddate><creator>Qiu, Hongbo</creator><creator>Fan, Xiaobin</creator><creator>Feng, Jianqin</creator><creator>Yang, Cunxiang</creator><general>Emerald Publishing Limited</general><general>Emerald Group Publishing Limited</general><scope>AAYXX</scope><scope>CITATION</scope><scope>0U~</scope><scope>1-H</scope><scope>7SC</scope><scope>7SP</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F~G</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JQ2</scope><scope>K6~</scope><scope>K7-</scope><scope>L.-</scope><scope>L.0</scope><scope>L6V</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M0C</scope><scope>M0N</scope><scope>M2P</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PQBIZ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>PYYUZ</scope><scope>Q9U</scope></search><sort><creationdate>20180102</creationdate><title>Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator</title><author>Qiu, Hongbo ; Fan, Xiaobin ; Feng, Jianqin ; Yang, Cunxiang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c250t-268dc02d9edc924fd73538933a629b1ab3617e9f41dc6ef88b7a74b1a04233bb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Bars</topic><topic>Cogging</topic><topic>Computational mathematics</topic><topic>Computer simulation</topic><topic>Current distribution</topic><topic>Current loss</topic><topic>Design optimization</topic><topic>Eddy current testing</topic><topic>Eddy currents</topic><topic>Electric currents</topic><topic>Electromagnetic fields</topic><topic>Electromagnetism</topic><topic>Experiments</topic><topic>Finite element method</topic><topic>Generators</topic><topic>Harmonic analysis</topic><topic>Hydroelectric power</topic><topic>Induction heating</topic><topic>Influence</topic><topic>Load</topic><topic>Magnetic permeability</topic><topic>Magnetic saturation</topic><topic>Simulation</topic><topic>Software</topic><topic>Studies</topic><topic>Turbines</topic><topic>Turbogenerators</topic><topic>Two dimensional analysis</topic><topic>Two dimensional models</topic><topic>Wedges</topic><topic>Winding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Qiu, Hongbo</creatorcontrib><creatorcontrib>Fan, Xiaobin</creatorcontrib><creatorcontrib>Feng, Jianqin</creatorcontrib><creatorcontrib>Yang, Cunxiang</creatorcontrib><collection>CrossRef</collection><collection>Global News & ABI/Inform Professional</collection><collection>Trade PRO</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ABI/INFORM Global (Corporate)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Business Collection</collection><collection>Computer Science Database</collection><collection>ABI/INFORM Professional Advanced</collection><collection>ABI/INFORM Professional Standard</collection><collection>ProQuest Engineering Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>ABI/INFORM Global</collection><collection>Computing Database</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest One Business</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>ABI/INFORM Collection China</collection><collection>ProQuest Central Basic</collection><jtitle>Compel</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Qiu, Hongbo</au><au>Fan, Xiaobin</au><au>Feng, Jianqin</au><au>Yang, Cunxiang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator</atitle><jtitle>Compel</jtitle><date>2018-01-02</date><risdate>2018</risdate><volume>37</volume><issue>1</issue><spage>375</spage><epage>385</epage><pages>375-385</pages><issn>0332-1649</issn><eissn>2054-5606</eissn><abstract>Purpose
The purpose of this study is to find out the influence degree of harmonic current on the generator operating parameters. In practical operation of the salient-pole synchronous generator, the heat generated by eddy current loss may lead to the breaking of damper winding, and the damper winding is a key component for ensuring the reliable operation of generators. Therefore, it is important to study the distribution characteristics and the influence factors of eddy current loss. Taking a 24-MW bulb tubular turbine generator as a reference, the influence factors that affect the eddy current loss of damper winding are analyzed.
Design/methodology/approach
A two-dimensional (2-D) electromagnetic field model of the generator is established, and the correctness of the model is verified by comparing simulation results and experiment data. The eddy current losses of damper winding in various conditions are calculated by using the finite element method.
Findings
It is identified that the cogging effect, pole shoe magnetic saturation degree, pole arc coefficient and armature reaction are the main factors that affect the eddy current loss of the generator rotor. When the generator is installed with magnetic slot wedges, the distribution characteristic of eddy current loss is obtained through the study of the eddy current density distributions in the damper bars. The variations of eddy current losses with time are gained when the generator has different permeability slot wedges, pole arc coefficients and pole shoe magnetic saturation degrees.
Practical implications
The study of this paper provides a theoretical reference for the design and optimization of bulb tubular turbine generator structure.
Originality/value
The research can help enhance the understanding of eddy current distribution characteristics and influence factors of eddy current loss in bulb tubular turbine generator.</abstract><cop>Bradford</cop><pub>Emerald Publishing Limited</pub><doi>10.1108/COMPEL-11-2016-0488</doi><tpages>11</tpages></addata></record> |
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| source | Emerald Journals |
| subjects | Bars Cogging Computational mathematics Computer simulation Current distribution Current loss Design optimization Eddy current testing Eddy currents Electric currents Electromagnetic fields Electromagnetism Experiments Finite element method Generators Harmonic analysis Hydroelectric power Induction heating Influence Load Magnetic permeability Magnetic saturation Simulation Software Studies Turbines Turbogenerators Two dimensional analysis Two dimensional models Wedges Winding |
| title | Influence factors to affect eddy current loss of damper winding in 24 MW bulb tubular turbine generator |
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