Parameters Identification and Application of Equivalent Circuit at Low Frequency of Oil-Paper Insulation in Transformer
The low frequency section of frequency domain spectroscopy (FDS) of oil-paper insu- lation system can effectively reflect the ageing state and moisture of the oil-immersed paper. Meanwhile, steady-state insulation resistance is the one of indexes for the condition of transformer. In actual measureme...
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| description | The low frequency section of frequency domain spectroscopy (FDS) of oil-paper insu- lation system can effectively reflect the ageing state and moisture of the oil-immersed paper. Meanwhile, steady-state insulation resistance is the one of indexes for the condition of transformer. In actual measurement, these two both are time-consuming and poor accessibility, thereby restraining their field applications. Aim at this problem, this paper analyses the polarization process of the oil-paper insulation in transformer, and adopts a low frequency equivalent circuit model for the oil-paper insulation to characterize the polarization process at low frequency. The simulated annealing particle swarm optimization (SAPSO) algorithm is proposed to identify the parameters in equivalent circuit, which are affected by change of insulation state. Compared with the experimental results, the errors of the steady-state insulation resistance and the tan \delta below 10 −3 Hz, which are calculated by the identified parameters, are less than 2.5%. This method can avoid the influence from external environment and reduce the measurement time. The time and frequency domain parameters calculated can provide reference for the ageing assessment of oil-immersed paper. |
| doi_str_mv | 10.1109/ACCESS.2020.2992681 |
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Meanwhile, steady-state insulation resistance is the one of indexes for the condition of transformer. In actual measurement, these two both are time-consuming and poor accessibility, thereby restraining their field applications. Aim at this problem, this paper analyses the polarization process of the oil-paper insulation in transformer, and adopts a low frequency equivalent circuit model for the oil-paper insulation to characterize the polarization process at low frequency. The simulated annealing particle swarm optimization (SAPSO) algorithm is proposed to identify the parameters in equivalent circuit, which are affected by change of insulation state. Compared with the experimental results, the errors of the steady-state insulation resistance and the tan <inline-formula> <tex-math notation="LaTeX">\delta </tex-math></inline-formula> below 10 −3 Hz, which are calculated by the identified parameters, are less than 2.5%. This method can avoid the influence from external environment and reduce the measurement time. The time and frequency domain parameters calculated can provide reference for the ageing assessment of oil-immersed paper.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2020.2992681</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Algorithms ; Dielectrics ; Equivalent circuits ; Frequency domain analysis ; frequency domain spectroscopy ; Insulation ; Integrated circuit modeling ; interfacial polarization ; Low frequencies ; Moisture resistance ; Oil-paper insulation equivalent circuit ; Parameter identification ; Particle swarm optimization ; Polarization ; Power transformer insulation ; Resistance ; Simulated annealing ; simulated annealing particle swarm optimization ; Steady state ; steady-state insulation resistance ; Time measurement ; Transformers</subject><ispartof>IEEE access, 2020, Vol.8, p.86651-86658</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-f6fd56cba529a3e399b86a4631119ff440ed0ec065745e77b79218d7306dab9e3</citedby><cites>FETCH-LOGICAL-c408t-f6fd56cba529a3e399b86a4631119ff440ed0ec065745e77b79218d7306dab9e3</cites><orcidid>0000-0002-1604-4273 ; 0000-0002-8155-9548</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9086519$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,864,2102,4024,27633,27923,27924,27925,54933</link.rule.ids></links><search><creatorcontrib>Xie, Yiming</creatorcontrib><creatorcontrib>Ruan, Jiangjun</creatorcontrib><title>Parameters Identification and Application of Equivalent Circuit at Low Frequency of Oil-Paper Insulation in Transformer</title><title>IEEE access</title><addtitle>Access</addtitle><description>The low frequency section of frequency domain spectroscopy (FDS) of oil-paper insu- lation system can effectively reflect the ageing state and moisture of the oil-immersed paper. Meanwhile, steady-state insulation resistance is the one of indexes for the condition of transformer. In actual measurement, these two both are time-consuming and poor accessibility, thereby restraining their field applications. Aim at this problem, this paper analyses the polarization process of the oil-paper insulation in transformer, and adopts a low frequency equivalent circuit model for the oil-paper insulation to characterize the polarization process at low frequency. The simulated annealing particle swarm optimization (SAPSO) algorithm is proposed to identify the parameters in equivalent circuit, which are affected by change of insulation state. Compared with the experimental results, the errors of the steady-state insulation resistance and the tan <inline-formula> <tex-math notation="LaTeX">\delta </tex-math></inline-formula> below 10 −3 Hz, which are calculated by the identified parameters, are less than 2.5%. This method can avoid the influence from external environment and reduce the measurement time. The time and frequency domain parameters calculated can provide reference for the ageing assessment of oil-immersed paper.</description><subject>Algorithms</subject><subject>Dielectrics</subject><subject>Equivalent circuits</subject><subject>Frequency domain analysis</subject><subject>frequency domain spectroscopy</subject><subject>Insulation</subject><subject>Integrated circuit modeling</subject><subject>interfacial polarization</subject><subject>Low frequencies</subject><subject>Moisture resistance</subject><subject>Oil-paper insulation equivalent circuit</subject><subject>Parameter identification</subject><subject>Particle swarm optimization</subject><subject>Polarization</subject><subject>Power transformer insulation</subject><subject>Resistance</subject><subject>Simulated annealing</subject><subject>simulated annealing particle swarm optimization</subject><subject>Steady state</subject><subject>steady-state insulation resistance</subject><subject>Time measurement</subject><subject>Transformers</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNUU1r3DAQNaWFhjS_IBdBz97qW9ZxMZtkYSGBpGcxlkdFi9dyZDsh_z7eOg2dy3zw3psZXlFcM7phjNpf27rePT5uOOV0w63lumJfigvOtC2FEvrrf_X34mocj3SJahkpc1G8PkCGE06YR7JvsZ9iiB6mmHoCfUu2w9D961Mgu-c5vkC3wEgds5_jRGAih_RKbjI-z9j7tzPsPnblAwyYyb4f526lx548ZejHkPIJ84_iW4BuxKuPfFn8vtk91Xfl4f52X28PpZe0msqgQ6u0b0BxCwKFtU2lQWrBGLMhSEmxpeipVkYqNKYxlrOqNYLqFhqL4rLYr7ptgqMbcjxBfnMJovs7SPmPgzxF36HzlefWcyFBV9J4akXwCE0TaFAUpVm0fq5aQ07Ls-PkjmnO_XK-41JJRplRYkGJFeVzGseM4XMro-5smFsNc2fD3IdhC-t6ZUVE_GRYWmnFrHgHjxqSvA</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Xie, Yiming</creator><creator>Ruan, Jiangjun</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Meanwhile, steady-state insulation resistance is the one of indexes for the condition of transformer. In actual measurement, these two both are time-consuming and poor accessibility, thereby restraining their field applications. Aim at this problem, this paper analyses the polarization process of the oil-paper insulation in transformer, and adopts a low frequency equivalent circuit model for the oil-paper insulation to characterize the polarization process at low frequency. The simulated annealing particle swarm optimization (SAPSO) algorithm is proposed to identify the parameters in equivalent circuit, which are affected by change of insulation state. Compared with the experimental results, the errors of the steady-state insulation resistance and the tan <inline-formula> <tex-math notation="LaTeX">\delta </tex-math></inline-formula> below 10 −3 Hz, which are calculated by the identified parameters, are less than 2.5%. This method can avoid the influence from external environment and reduce the measurement time. The time and frequency domain parameters calculated can provide reference for the ageing assessment of oil-immersed paper.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/ACCESS.2020.2992681</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0002-1604-4273</orcidid><orcidid>https://orcid.org/0000-0002-8155-9548</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Algorithms Dielectrics Equivalent circuits Frequency domain analysis frequency domain spectroscopy Insulation Integrated circuit modeling interfacial polarization Low frequencies Moisture resistance Oil-paper insulation equivalent circuit Parameter identification Particle swarm optimization Polarization Power transformer insulation Resistance Simulated annealing simulated annealing particle swarm optimization Steady state steady-state insulation resistance Time measurement Transformers |
| title | Parameters Identification and Application of Equivalent Circuit at Low Frequency of Oil-Paper Insulation in Transformer |
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