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In the input\u2010parallel output\u2010parallel resonant converter system, the output voltage accuracy of the converter under the traditional droop control is analyzed when the load changes. In this paper, an adaptive droop control is proposed, in which the droop coefficient is adaptively adjusted as the load changes. The control method proposed in this paper realizes the current sharing between the converters and solves the shortcomings of the output voltage changing under different loads in the conventional droop control. Taking two parallel LLC converters as an example, the control block diagram of the parallel control method for adaptive adjustment of the droop coefficient proposed in this paper is given, and the stability of the control loop is analyzed. Finally, two parallel prototypes of LLC converters with input 200\u2009V\/output 24\u2009V input are built by digital control, and the experiment shows that the proposed control method improves the shortcomings of excessive output voltage droop caused by traditional droop control during dynamic load switching, which verifies the effectiveness of the method.<\/jats:p>","DOI":"10.1002\/cta.3824","type":"journal-article","created":{"date-parts":[[2023,10,17]],"date-time":"2023-10-17T04:55:22Z","timestamp":1697518522000},"page":"1754-1769","update-policy":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Adaptive droop control strategy of parallel LLC converters"],"prefix":"10.1002","volume":"52","author":[{"given":"Yu","family":"Tang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology  Tianjin China"}]},{"given":"Hucheng","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology  Tianjin China"}]},{"given":"Yushuo","family":"Pei","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology  Tianjin China"}]},{"given":"Fang","family":"Yao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology  Tianjin China"}]},{"ORCID":"https:\/\/summer-heart-0930.chufeiyun1688.workers.dev:443\/https\/orcid.org\/0000-0001-6310-6986","authenticated-orcid":false,"given":"Leijiao","family":"Ge","sequence":"additional","affiliation":[{"name":"School of Electrical and Information Engineering Tianjin University  Tianjin China"}]}],"member":"311","published-online":{"date-parts":[[2023,10,16]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2017.2649221"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2016.2645884"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2018.2854739"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2010.2095041"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.633"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.3468"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2011.2180541"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/TIE.2021.3080214"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2014.2365625"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2021.3060445"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.2669"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.2681"},{"issue":"10","key":"e_1_2_9_14_1","first-page":"6968","article-title":"Magnetic\u2010coupling current\u2010balancing cells based input\u2010parallel output\u2010parallel LLC resonant converter modules for high\u2010frequency isolation of DC distribution systems","volume":"31","author":"Liu C","year":"2016","journal-title":"IEEE Trans Power Electron"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1109\/TPEL.2020.3026929"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1109\/JESTPE.2017.2777508"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/cta.3607"},{"key":"e_1_2_9_18_1","doi-asserted-by":"crossref","unstructured":"WangH ChenY ShengB LiuY\u2010F SenPC.Two\u2010phase three\u2010dimension common inductor LLC resonant converter with automatic current sharing. 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