Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply

Widely applied in medical, industrial, and military fields, the high-voltage power supply based on LCC resonant converter (LCC) is ought to establish tens kilovolts of output voltage within milliseconds according to many standards. And any overshoot during this start-up process is not allowed becaus...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Jun Zhao, Lianghao Li, Zhenyu Li, Zheng Chen, Long Xiao, Guozhu Chen
Formato: article
Lenguaje:EN
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://doaj.org/article/a116ea8016594305ab6ee68ff428e93c
Etiquetas: Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
id oai:doaj.org-article:a116ea8016594305ab6ee68ff428e93c
record_format dspace
spelling oai:doaj.org-article:a116ea8016594305ab6ee68ff428e93c2021-12-04T04:35:11ZMulti-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply2352-484710.1016/j.egyr.2021.11.166https://doaj.org/article/a116ea8016594305ab6ee68ff428e93c2022-04-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2352484721013135https://doaj.org/toc/2352-4847Widely applied in medical, industrial, and military fields, the high-voltage power supply based on LCC resonant converter (LCC) is ought to establish tens kilovolts of output voltage within milliseconds according to many standards. And any overshoot during this start-up process is not allowed because of the issue or even deadly consequence it may lead. Traditional linear control schemes are powerless to fulfill these two conflicting requirements, especially for the LCC with nonlinear gain characteristics. In this paper, a multi-segment fuzzy control is proposed to tackle this problem. Firstly, the nonlinear gain curve of LCC is piecewise linearized based on its large-signal model, and the control requirements for different segments are determined. Then the control parameters for each part are selected by an off-line fuzzy algorithm. The allowed minimum frequency during the start-up is also piecewise linearized so that the gain ability of LCC is utilized. Finally, the proposed control scheme is verified with an 80kW/150kV X-ray power supply. A low-cost controller is used to implement the start-up control scheme since the control parameters can be pre-calculated and stored in the controller. Compared with the commonly used linear PI control, the non-overshoot start-up time with the proposed control scheme is reduced by more than 60%.Jun ZhaoLianghao LiZhenyu LiZheng ChenLong XiaoGuozhu ChenElsevierarticleLCC resonant converterHigh-voltage power supplyOptimized start-upFuzzy algorithmMulti-segmentElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 8, Iss , Pp 552-559 (2022)
institution DOAJ
collection DOAJ
language EN
topic LCC resonant converter
High-voltage power supply
Optimized start-up
Fuzzy algorithm
Multi-segment
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
spellingShingle LCC resonant converter
High-voltage power supply
Optimized start-up
Fuzzy algorithm
Multi-segment
Electrical engineering. Electronics. Nuclear engineering
TK1-9971
Jun Zhao
Lianghao Li
Zhenyu Li
Zheng Chen
Long Xiao
Guozhu Chen
Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
description Widely applied in medical, industrial, and military fields, the high-voltage power supply based on LCC resonant converter (LCC) is ought to establish tens kilovolts of output voltage within milliseconds according to many standards. And any overshoot during this start-up process is not allowed because of the issue or even deadly consequence it may lead. Traditional linear control schemes are powerless to fulfill these two conflicting requirements, especially for the LCC with nonlinear gain characteristics. In this paper, a multi-segment fuzzy control is proposed to tackle this problem. Firstly, the nonlinear gain curve of LCC is piecewise linearized based on its large-signal model, and the control requirements for different segments are determined. Then the control parameters for each part are selected by an off-line fuzzy algorithm. The allowed minimum frequency during the start-up is also piecewise linearized so that the gain ability of LCC is utilized. Finally, the proposed control scheme is verified with an 80kW/150kV X-ray power supply. A low-cost controller is used to implement the start-up control scheme since the control parameters can be pre-calculated and stored in the controller. Compared with the commonly used linear PI control, the non-overshoot start-up time with the proposed control scheme is reduced by more than 60%.
format article
author Jun Zhao
Lianghao Li
Zhenyu Li
Zheng Chen
Long Xiao
Guozhu Chen
author_facet Jun Zhao
Lianghao Li
Zhenyu Li
Zheng Chen
Long Xiao
Guozhu Chen
author_sort Jun Zhao
title Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
title_short Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
title_full Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
title_fullStr Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
title_full_unstemmed Multi-segment fuzzy control for start-up optimizing of LCC-based high-voltage power supply
title_sort multi-segment fuzzy control for start-up optimizing of lcc-based high-voltage power supply
publisher Elsevier
publishDate 2022
url https://doaj.org/article/a116ea8016594305ab6ee68ff428e93c
work_keys_str_mv AT junzhao multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
AT lianghaoli multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
AT zhenyuli multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
AT zhengchen multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
AT longxiao multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
AT guozhuchen multisegmentfuzzycontrolforstartupoptimizingoflccbasedhighvoltagepowersupply
_version_ 1718372931737747456