The first implementation of active detachment feedback control in EAST PCS
EAST achieved 101.2 seconds H-mode discharge with total power injection up to 3MW in 2017. Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in...
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| Veröffentlicht in: | Fusion engineering and design 2020-05, Vol.154, p.111557, Article 111557 |
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| creator | Yuan, Q.P. Wu, K. Wang, L. Xu, J.C. Li, K.D. Liu, J.B. Meng, L.Y. Zhan, R.R. Luo, Z.P. Xiao, B.J. Eldon, D. Barr, Jayson Hyatt, A. |
| description | EAST achieved 101.2 seconds H-mode discharge with total power injection up to 3MW in 2017. Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algorithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor integration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER. |
| doi_str_mv | 10.1016/j.fusengdes.2020.111557 |
| format | Article |
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Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algorithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor integration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER.</description><identifier>ISSN: 0920-3796</identifier><identifier>EISSN: 1873-7196</identifier><identifier>DOI: 10.1016/j.fusengdes.2020.111557</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Active control ; Active heat flux control ; Algorithms ; Control algorithms ; Control systems ; Control theory ; Degree of detachment control ; Feedback control ; Heat flux ; Impurity seeding ; Nuclear power plants ; Partial detachment ; Plasma control ; Plasmas</subject><ispartof>Fusion engineering and design, 2020-05, Vol.154, p.111557, Article 111557</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier Science Ltd. 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Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algorithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor integration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER.</description><subject>Active control</subject><subject>Active heat flux control</subject><subject>Algorithms</subject><subject>Control algorithms</subject><subject>Control systems</subject><subject>Control theory</subject><subject>Degree of detachment control</subject><subject>Feedback control</subject><subject>Heat flux</subject><subject>Impurity seeding</subject><subject>Nuclear power plants</subject><subject>Partial detachment</subject><subject>Plasma control</subject><subject>Plasmas</subject><issn>0920-3796</issn><issn>1873-7196</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNqFkN1KAzEQhYMoWKvPYMDrrckmm2wuS6l_FBRar0M2O7Gp7aYmacG3d8uKt8LAwMw5M5wPoVtKJpRQcb-ZuEOC7qOFNClJ2U8prSp5hka0lqyQVIlzNCKqJAWTSlyiq5Q2hFDZ1wi9rNaAnY8pY7_bb2EHXTbZhw4Hh43N_gi4hWzs-rTBDqBtjP3ENnQ5hi32HZ5Plyv8NlteowtntglufvsYvT_MV7OnYvH6-DybLgrLOMsFr0hNQSpgJWtMxRRUXAjjZK04EAsGnCKOu7qCBpRyUrVCSM6JrUVLy4aN0d1wdx_D1wFS1ptwiF3_Upec07pPLWmvkoPKxpBSBKf30e9M_NaU6BM4vdF_4PQJnB7A9c7p4IQ-xNFD1Ml66Cy0PoLNug3-3xs_8Zl6Ig</recordid><startdate>202005</startdate><enddate>202005</enddate><creator>Yuan, Q.P.</creator><creator>Wu, K.</creator><creator>Wang, L.</creator><creator>Xu, J.C.</creator><creator>Li, K.D.</creator><creator>Liu, J.B.</creator><creator>Meng, L.Y.</creator><creator>Zhan, R.R.</creator><creator>Luo, Z.P.</creator><creator>Xiao, B.J.</creator><creator>Eldon, D.</creator><creator>Barr, Jayson</creator><creator>Hyatt, A.</creator><general>Elsevier B.V</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>KR7</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-1895-0648</orcidid><orcidid>https://orcid.org/0000-0001-8692-2636</orcidid><orcidid>https://orcid.org/0000-0002-8585-5408</orcidid><orcidid>https://orcid.org/0000-0002-4139-5956</orcidid></search><sort><creationdate>202005</creationdate><title>The first implementation of active detachment feedback control in EAST PCS</title><author>Yuan, Q.P. ; Wu, K. ; Wang, L. ; Xu, J.C. ; Li, K.D. ; Liu, J.B. ; Meng, L.Y. ; Zhan, R.R. ; Luo, Z.P. ; Xiao, B.J. ; Eldon, D. ; Barr, Jayson ; Hyatt, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c343t-45081e79e323ba539e5466af7894e0ceaef90f4f85ebe99f79d667440c86d12b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Active control</topic><topic>Active heat flux control</topic><topic>Algorithms</topic><topic>Control algorithms</topic><topic>Control systems</topic><topic>Control theory</topic><topic>Degree of detachment control</topic><topic>Feedback control</topic><topic>Heat flux</topic><topic>Impurity seeding</topic><topic>Nuclear power plants</topic><topic>Partial detachment</topic><topic>Plasma control</topic><topic>Plasmas</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yuan, Q.P.</creatorcontrib><creatorcontrib>Wu, K.</creatorcontrib><creatorcontrib>Wang, L.</creatorcontrib><creatorcontrib>Xu, J.C.</creatorcontrib><creatorcontrib>Li, K.D.</creatorcontrib><creatorcontrib>Liu, J.B.</creatorcontrib><creatorcontrib>Meng, L.Y.</creatorcontrib><creatorcontrib>Zhan, R.R.</creatorcontrib><creatorcontrib>Luo, Z.P.</creatorcontrib><creatorcontrib>Xiao, B.J.</creatorcontrib><creatorcontrib>Eldon, D.</creatorcontrib><creatorcontrib>Barr, Jayson</creatorcontrib><creatorcontrib>Hyatt, A.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Fusion engineering and design</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yuan, Q.P.</au><au>Wu, K.</au><au>Wang, L.</au><au>Xu, J.C.</au><au>Li, K.D.</au><au>Liu, J.B.</au><au>Meng, L.Y.</au><au>Zhan, R.R.</au><au>Luo, Z.P.</au><au>Xiao, B.J.</au><au>Eldon, D.</au><au>Barr, Jayson</au><au>Hyatt, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The first implementation of active detachment feedback control in EAST PCS</atitle><jtitle>Fusion engineering and design</jtitle><date>2020-05</date><risdate>2020</risdate><volume>154</volume><spage>111557</spage><pages>111557-</pages><artnum>111557</artnum><issn>0920-3796</issn><eissn>1873-7196</eissn><abstract>EAST achieved 101.2 seconds H-mode discharge with total power injection up to 3MW in 2017. Consequently to the enhanced auxiliary heating power, the active divertor heat flux control is urgently needed in EAST. In 2018, the active divertor detachment feedback control was implemented successfully in EAST plasma control system (PCS) with divertor Langmuir probe measurements for evaluating the divertor particle flux. The control algorithm controlled the degree of detachment effectively during the 2018 EAST experiments through either D2 fueling in the low field side using SMBI or impurity seeding from the divertor volume in H-mode plasmas, without significant degradation of the core-plasma performance, i.e., exhibiting good core-edge-divertor integration. The algorithm implementation in PCS and experimental results will be reported in this paper. Further efforts will be made to extend active feedback control towards long-pulse H-mode detachment maintenance in the near future, which will benefit the high power, H-mode operation for ITER.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.fusengdes.2020.111557</doi><orcidid>https://orcid.org/0000-0003-1895-0648</orcidid><orcidid>https://orcid.org/0000-0001-8692-2636</orcidid><orcidid>https://orcid.org/0000-0002-8585-5408</orcidid><orcidid>https://orcid.org/0000-0002-4139-5956</orcidid></addata></record> |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Active control Active heat flux control Algorithms Control algorithms Control systems Control theory Degree of detachment control Feedback control Heat flux Impurity seeding Nuclear power plants Partial detachment Plasma control Plasmas |
| title | The first implementation of active detachment feedback control in EAST PCS |
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