Please wait a minute...
浙江大学学报(工学版)
浙江大学学报(工学版)  2022, Vol. 56 Issue (3): 622-630    DOI: 10.3785/j.issn.1008-973X.2022.03.022
电气工程     
隔离型交?直流固态变压器前后级一体化滑模控制
张国澎(),李子汉,王浩*(),郑征
河南理工大学 电气工程与自动化学院，河南 焦作 454000
Isolated AC-DC solid state transformer front and rear stages integrated sliding mode control
Guo-peng ZHANG(),Zi-han LI,Hao WANG*(),zheng ZHENG
School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China
 全文: PDF(2058 KB)   HTML
摘要：

为了提高固态变压器(SST)控制系统的动态性能和鲁棒性，提出SST前后级一体化滑模控制方法. 根据SST前后级的非线性特性，建立整体仿射非线性的数学模型，采用输入?输出精确反馈线性化，实现前级电流环、前后级级间电压以及SST直流侧电压的解耦，加强前后两级功率传递的一致性. 将解耦的线性系统与积分滑模控制器结合，进一步提高系统整体动态性能，改善系统对参数摄动的鲁棒性. 仿真和实验结果表明，在外部发生扰动时，SST采用一体化滑模控制方法能够快速、有效地调整电网侧电压、两级间电压和直流侧电压的波动，改善前、后级功率传递的一致性，在发生参数变化时仍具有较强的鲁棒性.
关键词： 固态变压器;  前后级;  精确反馈线性化;  暂态性能;  一体化滑模控制    
Abstract:

An integrated sliding mode control method of front and rear stages of solid-state transformer (SST) was proposed, in order to improve the dynamic performance and robustness of SST control system. According to the nonlinear characteristics of the front and rear stages of SST, the mathematical model of overall affine nonlinearity was established. The input-output precise feedback linearization was used to decouple the front stage current loop, the voltage between the front and rear stages and the voltage on the DC side of SST. The consistency of the power transfer for the two converter stages was enhanced. The decoupling linear system was combined with the integral sliding mode controller to further improve the overall dynamic performance of the system and improve the robustness of the system to parameter perturbation. The simulation and experimental results show that in case of external disturbance, SST adopts the integrated sliding mode control method, which can quickly and effectively adjust the fluctuation of grid side voltage, two-stage voltage and DC side voltage, improve the consistency of power transmission between the two stages, and has strong robustness in case of parameter change.
Key words: solid-state transformer (SST)    converter stage    exact feedback linearization    transient performance    integrated sliding mode control
收稿日期: 2021-04-27 出版日期: 2022-03-29
CLC:  TM 46  
基金资助: 国家重点研发计划项目（2018YFC0604502）；河南省科技攻关项目（202102210294）；河南省自然科学基金资助项目（212300410147）
通讯作者: 王浩     E-mail: hpoyz@163.com;wangh@hpu.edu.cn
作者简介: 张国澎（1981—），男，副教授，从事大功率电力电子变换器方向的研究. orcid.org/0000-0003-2575-9438. E-mail： hpoyz@163.com
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
作者相关文章　　
张国澎
李子汉
王浩
郑征

引用本文:

张国澎,李子汉,王浩,郑征. 隔离型交?直流固态变压器前后级一体化滑模控制[J]. 浙江大学学报(工学版), 2022, 56(3): 622-630.

Guo-peng ZHANG,Zi-han LI,Hao WANG,zheng ZHENG. Isolated AC-DC solid state transformer front and rear stages integrated sliding mode control. Journal of ZheJiang University (Engineering Science), 2022, 56(3): 622-630.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2022.03.022    或    https://www.zjujournals.com/eng/CN/Y2022/V56/I3/622

图 1  隔离型交−直流SST拓扑
图 2  SST前后级一体化滑模控制框图
子系统 参数 数值
RS级 并网电压uab/V 380
并网电感L1/mH 2
级间电容C1/μf 2200
开关频率f1/kHz 5
级间电压参考值udc,ref/V 700
IBDC级 IBDC级电感L2/μH 20
直流侧电容C2/μF 1 500
IBDC开关频率f2/kHz 10
变压器变比n 1∶1
直流侧电压参考值uo/V 700
表 1  SST仿真参数
图 3  电源侧电压、电流波形
图 4  级间电压与负载侧电压波形
图 5  参数改变后级间电压和负载侧电压波形
图 6  SST整体实验平台结构图
图 7  SST整体实验平台
子系统 参数 数值
RS级 并网电感L1/mH 10
级间电容C1/μf 2 200
开关频率f1/kHz 5
IBDC级 IBDC级电感L2/μH 255
直流侧电容C2/μF 1 100
IBDC 开关频率f2/kHz 10
变压器变比n 1∶1
表 2  SST实验参数
图 8  传统控制电源侧a相电压、电流波形
图 9  一体化滑模控制电源侧a相电压、电流波形
图 10  传统控制级间电压和负载侧电压波形
图 11  一体化滑模控制级间电压和负载侧电压波形
图 12  参数改变后传统控制级间电压、负载侧电压波形
图 13  参数改变后一体化滑模控制级间电压、负载侧电压波形
1 赵争鸣, 冯高辉, 袁立强, 等 电能路由器的发展及其关键技术[J]. 中国电机工程学报, 2017, 37 (13): 3823- 3834
ZHAO Zheng-ming, FENG Gao-hui, YUAN Li-qiang, et al The development and key technologies of electric energy router[J]. Proceedings of the CSEE, 2017, 37 (13): 3823- 3834
2 XU S, HUANG A Q, BURGOS R Review of solid-state transformer technologies and their application in power distribution systems[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2013, 1 (3): 186- 198
doi: 10.1109/JESTPE.2013.2277917
3 李子欣, 高范强, 赵聪, 等 电力电子变压器技术研究综述[J]. 中国电机工程学报, 2018, 38 (5): 1274- 1289
LI Zi-xin, GAO Fan-qiang, ZHAO Cong, et al Research review of power electronic transformer technologies[J]. Proceedings of the CSEE, 2018, 38 (5): 1274- 1289
4 WANG J, GU B, DUAN Q, et al. Control strategy of solid state power electronic transformer under voltage disturbance conditions [C]// IECON 2015 41st Annual Conference of the IEEE Industrial Electronics Society. Yokohama: IEEE, 2015: 3081-3085.
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
doi: 10.1109/TPEL.2011.2106803
6 侯聂, 宋文胜, 武明义 双向全桥DC-DC变换器的负载电流前馈控制方法[J]. 中国电机工程学报, 2016, 36 (9): 2478- 2485
HOU Nie, SONG Wen-sheng, WU Ming-yi A load current feedforward control scheme of dual active bridge DC/DC converters[J]. Proceedings of the CSEE, 2016, 36 (9): 2478- 2485
7 郭力, 李霞林, 王成山 计及非线性因素的混合供能系统协调控制[J]. 中国电机工程学报, 2012, 32 (25): 60- 69
GUO Li, LI Xia-lin, WANG Cheng-shan Coordinated control of hybrid power supply systems considering non-linear factors[J]. Proceedings of the CSEE, 2012, 32 (25): 60- 69
8 倪靖猛, 方宇, 邢岩, 等 基于优化负载电流前馈控制的400Hz三相PWM航空整流器[J]. 电工技术学报, 2011, 26 (2): 141- 146
NI Jing-meng, FANG Yu, XING Yan, et al Three-phase 400 Hz PWM rectifier based on optimized feedforward control for aeronautical application[J]. Transactions of China Electrotechnical Society, 2011, 26 (2): 141- 146
9 王成山, 李霞林, 郭力 基于功率平衡及时滞补偿相结合的双级式变流器协调控制[J]. 中国电机工程学报, 2012, 32 (25): 109- 117
WANG Cheng-shan, LI Xia-lin, GUO Li Coordinated control of two-stage power converters based on power balancing and time-delay compensation[J]. Proceedings of the CSEE, 2012, 32 (25): 109- 117
10 WANG F, HUANG A, WANG G Y, et al. Feed-forward control of solid state transformer [C]// Proceedings of 2012 27th Annual IEEE Applied Power Electronics Conference and Exposition. Orlando: IEEE, 2012: 1153-1158.
11 LI Z, ZHENG T, MA H, et al. Coordinative control strategy for power electronic transformer with microgrid connection [C]// Proceedings of 2019 4th Asia Conference on Power and Electrical Engineering. Hangzhou: IOP Publishing, 2019: 012010.
12 GE J J, ZHAO Z M, YUAN L Q, et al Energy feed-forward and direct feed-forward control for solid-state transformer[J]. IEEE Transactions on Power Electronics, 2015, 30 (8): 4042- 4047
doi: 10.1109/TPEL.2014.2382613
13 孙玉巍, 李永刚, 刘教民, 等 级联式电力电子变压器协调控制策略[J]. 中国电机工程学报, 2018, 38 (5): 1290- 1300
SUN Yu-wei, LI Yong-gang, LIU Jiao-min, et al Coordinative control strategy for cascaded power electronic transformer[J]. Proceedings of the CSEE, 2018, 38 (5): 1290- 1300
14 陆翔, 谢运祥, 桂存兵, 等 基于多滑模变结构控制的三相PWM整流器非线性控制[J]. 电工技术学报, 2016, 31 (4): 79- 87
LU Xiang, XIE Yun-xiang, GUI Cun-bing, et al Nonlinear control of three-phase PWM rectifier based on multi-sliding mode variable structure control[J]. Transactions of China Electrotechnical Society, 2016, 31 (4): 79- 87
doi: 10.3969/j.issn.1000-6753.2016.04.012
15 刘海波, 毛承雄, 陆继明, 等 配电系统电子电力变压器非线性控制[J]. 中国电机工程学报, 2009, 29 (27): 1- 8
LIU Hai-bo, MAO Cheng-xiong, LU Ji-ming, et al Nonlinear control of electronic power transformer for distribution systems[J]. Proceedings of the CSEE, 2009, 29 (27): 1- 8
doi: 10.3321/j.issn:0258-8013.2009.27.001
16 孙玉巍, 朱吉林, 付超 级联式电力电子变压器非线性综合控制策略[J]. 中国电机工程学报, 2020, 40 (9): 2891- 2903
SUN Yu-wei, ZHU Ji-lin, FU Chao Nonlinear integrated control strategy of cascaded power electronic transformer[J]. Proceedings of the CSEE, 2020, 40 (9): 2891- 2903
17 YU C, WANG Y, LI H. The simplified topology of three-phase SST based on 15 kV SIC devices and the control strategy under unbalanced grid voltage [C]// 2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC). Xi'an: IEEE, 2016: 2055-2060.
18 ZHANG B, XU Y, LIANG Q, et al. Voltage control and fluctuation suppression of the three-phase SST with DC bus in dual rotating reference frames [C]// 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia). Hefei: IEEE, 2016: 1084-1087.
19 刘教民, 孙玉巍, 李永刚, 等 级联式电力电子变压器混合脉宽调制谐波分析及均衡控制[J]. 电力系统自动化, 2017, 41 (7): 101- 107
LIU Jiao-min, SUN Yu-wei, LI Yong-gang, et al Harmonic analysis and balancing control of cascade power electronic transformer based on hybrid pulse width modulation[J]. Automation of Electric Power Systems, 2017, 41 (7): 101- 107
doi: 10.7500/AEPS20160624013
20 韩京清, 王学军. 系统的时间尺度和非线性 PID 控制器[C]//1994年中国控制会议论文集. 太原: [s. n.], 1994: 314-321.
HAN Jing-qing, WANG Xue-jun. Time scale and nonlinear PID controller of the system [C]// Proceedings of 1994 China Control Conference. Taiyuan: [s. n.], 1994: 314-321.
21 SONG W S, HOU N, WU M Y Virtual direct power control scheme of dual active bridge DC–DC converters for fast dynamic response[J]. IEEE Transactions on Power Electronics, 2018, 33 (2): 1750- 1759
doi: 10.1109/TPEL.2017.2682982
22 帅定新, 谢运祥, 王晓刚 三相PWM整流器混合非线性控制研究[J]. 中国电机工程学报, 2009, 29 (12): 30- 35
SHUAI Ding-xin, XIE Yun-xiang, WANG Xiao-gang Novel hybrid nonlinear control method for three-phase PWM rectifier[J]. Proceedings of the CSEE, 2009, 29 (12): 30- 35
23 李正, 郝全睿, 王淑颖, 等 基于状态反馈精确线性化的MMC非线性解耦控制研究[J]. 中国电机工程学报, 2019, 39 (12): 3646- 3658
LI Zheng, HAO Quan-rui, WANG Shu-ying, et al Nonlinear decoupling control of MMC based on feedback linearization theory[J]. Proceedings of the CSEE, 2019, 39 (12): 3646- 3658
24 WANG X, WANG Y H LI X Y. Design of the static var compensator adaptive sliding mode controller considering model uncertainty and time-delay[J]. Acta Physica Sinica, 2014, 63 (23): 71- 78
25 CHEN Z X, WANG J, LU S L, et al. Double integral sliding mode control of paralleled dc/dc converters [C]// 2015 IEEE 10th Conference on Industrial Electronics and Applications (ICIEA). Auckland: IEEE, 2015: 1134-1138.
26 HOU Y, YOU G D. Integral sliding mode variable structure control for DSTATCOM [C]// 2010 International Conference on Measuring Technology and Mechatronics Automation. Changsha: IEEE, 2010: 476-479.
27 邵冰冰, 赵书强, 高本锋, 等 基于反馈线性化滑模控制的直驱风电场经柔直并网系统次同步振荡抑制策略[J]. 中国电机工程学报, 2021, 41 (9): 3090- 3105
SHAO Bing-bing, ZHAO Shu-qiang, GAO Ben-feng, et al Sub-synchronous oscillation mitigation strategy of direct-drive wind farms via VSC-HVDC system based on feedback linearization sliding mode control[J]. Proceedings of the CSEE, 2021, 41 (9): 3090- 3105
28 高为炳. 变结构控制理论基础[M]. 北京: 中国科学技术出版社, 1990: 116-123.
29 付媛, 李浩, 张祥宇 基于振荡状态反馈的直流微网储能换流器的有源阻尼控制技术[J]. 高电压技术, 2021, 47 (3): 927- 937
FU Yuan, LI Hao, ZHANG Xiang-yu Active damping control of energy storage converter in DC microgrid based on oscillatory state feedback[J]. High Voltage Engineering, 2021, 47 (3): 927- 937
30 罗博, 陈丽华, 李勇, 等 基于滑模控制的感应耦合电能传输系统输出电压控制研究[J]. 电工技术学报, 2017, 32 (23): 235- 242
LUO Bo, CHEN Hua-li, LI Yong, et al Investigation of output voltage control for the inductive power transfer system based on sliding mode control theory[J]. Transactions of China Electrotechnical Society, 2017, 32 (23): 235- 242
31 方番, 李媛 储能型准Z源逆变器的积分滑模电流控制策略[J]. 电网技术, 2018, 42 (9): 2967- 2975
FANG Pan, LI Yuan Integrated sliding-mode current control strategy for energy-stored quasi-Z-source inverter[J]. Power System Technology, 2018, 42 (9): 2967- 2975
[1] 周天翔,郑晓燕,叶世泽,陈恒林. 基于逆变器端口模型的电磁干扰滤波器设计[J]. 浙江大学学报(工学版), 2021, 55(11): 2215-2224.
[2] 王荣闯,王杉杉,高明,石健将. 基于LCL谐振型双有源桥的三端口DC-DC变换器及其解耦控制[J]. 浙江大学学报(工学版), 2021, 55(8): 1585-1593.
[3] 李洋,齐蓉,代明光. 补偿因子可调逆变器电压外环线性自抗扰控制[J]. 浙江大学学报(工学版), 2021, 55(7): 1279-1288.
[4] 朱艺锋,吴党建,白冰洋,岳豪. 单相五电平脉冲整流器滑模比例积分谐振控制[J]. 浙江大学学报(工学版), 2020, 54(8): 1578-1586.
[5] 赵一佳,王允建,王要东,张伟. 单移相输入串联输出并联的功率预测控制[J]. 浙江大学学报(工学版), 2020, 54(1): 160-168.
[6] 李竟成,吴越,胡斯登,石健将. 基于递推最小二乘法与核密度估计的同步整流Boost变换器回流功率抑制[J]. 浙江大学学报(工学版), 2020, 54(1): 169-177.
[7] 夏超英,吴刚,于佳丽. 基于一致渐近稳定观测器的模块化多电平变流器控制系统设计[J]. 浙江大学学报(工学版), 2019, 53(11): 2238-2247.
[8] 胡克用, 胥芳， 艾青林， 徐红伟， 欧阳静. 面向多逆变器的微电网冗余群控策略[J]. 浙江大学学报(工学版), 2016, 50(8): 1608-1617.
[9] 罗辞勇, 魏欣欣, 王卫耀, 南航. 基于耦合电感的零电压零电流软开关Buck变换器[J]. 浙江大学学报(工学版), 2016, 50(4): 663-670.
[10] 张奔奔,胥芳,吴乐彬,艾青林. LCL型并网逆变器自适应谐振抑制[J]. 浙江大学学报(工学版), 2016, 50(1): 180-185.
[11] 胡晨, 吴新科, 彭方正, 钱照明. 变压器级联的双路均流准谐振反激LED驱动器[J]. 浙江大学学报(工学版), 2015, 49(4): 740-748.
[12] 吴中民, 刘威, 吕征宇. LLC全范围满载软开关优化设计[J]. 浙江大学学报(工学版), 2014, 48(12): 2223-2229.
[13] 胡晨, 吴新科, 彭方正, 钱照明. 基于多电容充放电平衡的多路输出LED驱动器[J]. 浙江大学学报(工学版), 2014, 48(12): 2202-2209.
[14] 魏涛, 胡海兵, 陆道荣, 吴红飞. 输入输出电流连续的非隔离直直变换器[J]. 浙江大学学报(工学版), 2014, 48(10): 1901-1908.
[15] 曾争,杨家强. 一种频率自适应滑动平均滤波器的电网同步方法[J]. 浙江大学学报(工学版), 2014, 48(9): 1696-1703.