[1]李鑫海,杨仁增,胡洛铖.基于模型预测控制的 IIOS 型直流变换器研究[J].机械与电子,2023,41(03):3-6.
　LI Xinhai,YANG Renzeng,HU Luocheng.Research on IIOS DC Converter Based on Model Predictive Control[J].Machinery & Electronics,2023,41(03):3-6.
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基于模型预测控制的 IIOS 型直流变换器研究()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
41
期数:
2023年03期
页码:
3-6
栏目:
设计与研究
出版日期:
2023-03-31

文章信息/Info

Title:
Research on IIOS DC Converter Based on Model Predictive Control
文章编号:
1001-2257 ( 2023 ) 03-0003-04
作者:
李鑫海 1 ; 杨仁增 2 ; 胡洛铖 1
1. 贵州大学电气工程学院,贵州 贵阳 550025 ;
2. 贵州理工学院贵州省电力大数据重点实验室,贵州 贵阳 550003
Author(s):
LI Xinhai1 ;  YANG Renzeng2 ;  HU Luocheng1
( 1.School of Electrical Engineering , Guizhou University , Guiyang 550025 , China ; 2.Key Laboratory of Electric Big Data of Guizhou , Guizhou Institute of Technology , Guiyang 550003 , China )
关键词:
输入独立输出串联; 模型预测控制; 功率均衡; 动态响应; 光伏
Keywords:
input independent output in series ;  model predictive control ;  power balance ;  dynamic response ;  photovoltaic
分类号:
TM46
文献标志码:
A
摘要:
以光伏接入直流配电网中输入独立输出串联( IIOS )型直流变换器为研究对象,对多模块串联输出的全桥隔离 DC-DC 变换器拓扑结构进行建模,为改善变换器的动态性能,引入了模型预测控制策略,利用全桥隔离 DC-DC 变换器功率传输特性预测得到下一时刻的输出,从而计算出对应的占空比进行移相控制,在此基础上设置电压均分环节修正占空比,实现各模块的功率均衡。最后通过 MATLAB / Simulink仿真验证所提出的改进控制策略,实验结果与理论分析一致,且与传统的控制策略相对比,该控制策略动态响应更快,输出纹波更小,模块化的控制便于实现大规模的级联。
Abstract:
The input independent output series ( IIOS ) DC converter in photovoltaic access DC distribution network is taken as the research object , and the topology of the full-bridge isolated DC-DC converter with multimodule series output is modeled.For a better dynamic performance , a model predictive control strategy is introduced , and the power transmission characteristics of the full-bridge isolated DC-DC converter are used to predict the output at the next moment , so as to calculate the corresponding duty cycle for phase-shift control.The duty cycle is corrected in stages to achieve power balance of each module.Finally , the proposed improved control strategy is verified by MATLAB / Simulink simulation.The experimental results are consistent with the theoretical analysis. Compared with the traditional control strategy , the dynamic response of the control strategy is faster , the output ripple is smaller , and the modular control is easy to implement.

参考文献/References:

[ 1 ] 李子欣,王平,楚遵方,等 . 面向中高压智能配电网的电力电子变压器研究[ J ] . 电网技术, 2013 , 37 ( 9 ): 2592-2601.

[ 2 ] 苏明章,朱淼,李修一,等 . 一种适用于 IIOS 型直流变换器的功率均衡电路[ J ] . 电力电子技术, 2019 , 53 ( 8 ): 96-98.
[ 3 ] 傅仕航 . 模块级联型固态变压器双有源桥 DAB 控制策略的改进研究[ D ] . 杭州:浙江大学,2017.
[ 4 ] ZHAO T F , WANG G Y , BHATTACHARYA S , et al. Voltage and power balance control for a cascaded H-bridge converter-based solid-state transformer [ J ] .IEEE Transactions on power electronics , 2012 , 28 ( 4 ): 1523-1532.
[ 5 ] SHI J J , GOU W , YUAN H , et al.Research on voltage and power balance control for cascaded modular solid state transformer [ J ] .IEEE Transactions on power electronics , 2011 , 26 ( 4 ): 1154-1166.
[ 6 ] 王倩楠 . 高压光伏直流汇集中的输入并联输出串联 DC / DC 变换器的研究 [ D ] . 哈尔滨:哈尔滨工业大学,2017.
[ 7 ] 赵彪,于庆广,孙伟欣 . 双重移相控制的双向全桥 DC-DC 变换器及其功率回流特性分析[ J ] . 中国电机工程学报,2012 , 32 ( 12 ): 43-50.
[ 8 ] 陆治国,王友,廖一茜 . 基于光伏并网逆变器的一种矢量角补偿法有限控制集模型预测控制研究[ J ] . 电网技术,2018 , 42 ( 2 ): 548-554.
[ 9 ] 易杨 . 电子电力变压器若干关键技术研究与实现[ D ] .武汉:华中科技大学,2013.

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备注/Memo

备注/Memo:
收稿日期: 2022-09-10
基金项目:贵州省科技基金项目(黔科合基础 20181068 )
作者简介:李鑫海 ( 1997- ),男,四川富顺人,硕士研究生,研究方向为电能变换;杨仁增 ( 1971- ),男,贵州天柱人,博士,副教授,研究方向为电力电子技术;胡洛铖 ( 1998- ),男,湖南常德人,硕士研究生,研究方向为电力系统继电保护。
更新日期/Last Update: 2023-04-04