{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T23:15:05Z","timestamp":1773011705190,"version":"3.50.1"},"reference-count":24,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T00:00:00Z","timestamp":1751241600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T00:00:00Z","timestamp":1751241600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Circuit Theory &amp;amp; Apps"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Aiming at the problems of low input voltage and wide range of new energy hybrid power supply systems such as photovoltaic and fuel cell, a wide\u2010input high\u2010gain three\u2010port converter based on improved quadratic structure is proposed. The three ports of the converter are connected to new energy power system, battery, and load, respectively, among which the flow of energy is realized. The improved quadratic structure can improve the voltage gain of the converter and reduce the voltage stress of the power switch by integrating the diode\u2013capacitor voltage doubling unit into the quadratic structure. At the same time, the new energy port of the converter can achieve both boost charging and buck charging of the battery port, avoiding the voltage limit of the dual\u2010source port. The topology, working principle, and steady\u2010state characteristics of the proposed converter are analyzed in detail. The voltage conversion ratio of the converter is 3\u2010\n                    <jats:italic>d<\/jats:italic>\n                    \/(1\u2010\n                    <jats:italic>d<\/jats:italic>\n                    )\n                    <jats:sup>2<\/jats:sup>\n                    , and the working efficiency is 93.2%. In addition, the three operating modes of the proposed converter are modeled mathematically, and the control strategies under the three operating modes are designed. Finally, a 100\u2010W prototype is built to verify the effectiveness and correctness of the converter.\n                  <\/jats:p>","DOI":"10.1002\/cta.70024","type":"journal-article","created":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T21:20:17Z","timestamp":1751318417000},"page":"1491-1511","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Wide\u2010Input High\u2010Gain Three\u2010Port DC\u2013DC Converter Based on Improved Quadratic Structure"],"prefix":"10.1002","volume":"54","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-0451-7038","authenticated-orcid":false,"given":"Junsong","family":"Xu","sequence":"first","affiliation":[{"name":"School of Automation Nanjing University of Science and Technology  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhidong","family":"Qi","sequence":"additional","affiliation":[{"name":"School of Automation Nanjing University of Science and Technology  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Automation Nanjing University of Science and Technology  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaoyang","family":"Shen","sequence":"additional","affiliation":[{"name":"School of Automation Nanjing University of Science and Technology  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin","family":"Tong","sequence":"additional","affiliation":[{"name":"School of Automation Nanjing University of Science and Technology  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,6,30]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"crossref","unstructured":"A.Benhmidene M.Mami;N.Anayed;K.Hidouri;B.Chaouachi2023. \u201cStudy of Solar Energy Storage System Ability for Greenhouse Heating\u201d. 2023 14th International Renewable Energy Congress (IREC.","DOI":"10.1109\/IREC59750.2023.10389388"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/PowerAfrica57932.2023.10363163"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/ese3.1937"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2023.3304308"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2020.2975124"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2021.3082066"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2023.3276048"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICIT46573.2021.9453694"},{"key":"e_1_2_10_10_1","volume-title":"2023 IEEE 14th International Symposium on Power Electronics for Distributed Generation Systems","author":"Qi X.","year":"2023"},{"key":"e_1_2_10_11_1","volume-title":"2023 International Conference on Computer, Electronics and Electrical Engineering and Their Applications (IC2E3)","author":"Nair S. 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