An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid

The acceleration grid power supply (AGPS) is a key component of the negative-ion neutral beam injector (NNBI) system. DC offset is one of the pivotal problems in the construction of the inverter for the AGPS. An optimized control scheme is proposed in this paper to minimize DC current flowed in the...

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Main Authors: Xueshan Li, Yiyun Huang, Zongqiu Gao, Shengming Pan, Wei Lu, Hulin Feng, Denghui Wang
Format: Article
Language:English
Published: Elsevier 2022-11-01
Series:Energy Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484722015980
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author Xueshan Li
Yiyun Huang
Zongqiu Gao
Shengming Pan
Wei Lu
Hulin Feng
Denghui Wang
author_facet Xueshan Li
Yiyun Huang
Zongqiu Gao
Shengming Pan
Wei Lu
Hulin Feng
Denghui Wang
author_sort Xueshan Li
collection DOAJ
description The acceleration grid power supply (AGPS) is a key component of the negative-ion neutral beam injector (NNBI) system. DC offset is one of the pivotal problems in the construction of the inverter for the AGPS. An optimized control scheme is proposed in this paper to minimize DC current flowed in the isolated step-up transformer. It is based on the idea of optimizing the measured value through a Kalman filter and making it converge to a limited value through a PI controller. Theoretical analysis and simulation results confirm the concept.
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spelling doaj.art-ac494d8e097f4e1292bc0614c4249c752023-02-22T04:31:34ZengElsevierEnergy Reports2352-48472022-11-01812111218An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator gridXueshan Li0Yiyun Huang1Zongqiu Gao2Shengming Pan3Wei Lu4Hulin Feng5Denghui Wang6Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; University of Science and Technology of China, Hefei 230026, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; University of Science and Technology of China, Hefei 230026, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; Corresponding author.Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China; University of Science and Technology of China, Hefei 230026, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaHefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaThe acceleration grid power supply (AGPS) is a key component of the negative-ion neutral beam injector (NNBI) system. DC offset is one of the pivotal problems in the construction of the inverter for the AGPS. An optimized control scheme is proposed in this paper to minimize DC current flowed in the isolated step-up transformer. It is based on the idea of optimizing the measured value through a Kalman filter and making it converge to a limited value through a PI controller. Theoretical analysis and simulation results confirm the concept.http://www.sciencedirect.com/science/article/pii/S2352484722015980Nuclear fusionIsolated DCDC converterInverterDC component suppressionKalman filterControl strategy
spellingShingle Xueshan Li
Yiyun Huang
Zongqiu Gao
Shengming Pan
Wei Lu
Hulin Feng
Denghui Wang
An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
Energy Reports
Nuclear fusion
Isolated DCDC converter
Inverter
DC component suppression
Kalman filter
Control strategy
title An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
title_full An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
title_fullStr An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
title_full_unstemmed An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
title_short An improved DC component suppression control strategy applied to high voltage power supply for N-NBI accelerator grid
title_sort improved dc component suppression control strategy applied to high voltage power supply for n nbi accelerator grid
topic Nuclear fusion
Isolated DCDC converter
Inverter
DC component suppression
Kalman filter
Control strategy
url http://www.sciencedirect.com/science/article/pii/S2352484722015980
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