Adaptive Decentralized Output-Constrained Control of Single-Bus DC Microgrids

Jiangkai Peng; Bo Fan; Jiajun Duan; Qinmin Yang; Wenxin Liu

doi:10.1109/JAS.2019.1911387

Volume 6 Issue 2

Mar. 2019

IEEE/CAA Journal of Automatica Sinica

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Article Navigation > IEEE/CAA Journal of Automatica Sinica > 2019 > 6(2): 424-432

Jiangkai Peng, Bo Fan, Jiajun Duan, Qinmin Yang and Wenxin Liu, "Adaptive Decentralized Output-Constrained Control of Single-Bus DC Microgrids," IEEE/CAA J. Autom. Sinica, vol. 6, no. 2, pp. 424-432, Mar. 2019. doi: 10.1109/JAS.2019.1911387

Citation:

Jiangkai Peng, Bo Fan, Jiajun Duan, Qinmin Yang and Wenxin Liu, "Adaptive Decentralized Output-Constrained Control of Single-Bus DC Microgrids," IEEE/CAA J. Autom. Sinica, vol. 6, no. 2, pp. 424-432, Mar. 2019. doi: 10.1109/JAS.2019.1911387

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Adaptive Decentralized Output-Constrained Control of Single-Bus DC Microgrids

doi: 10.1109/JAS.2019.1911387

Jiangkai Peng^1
,,
Bo Fan^3
,,
Jiajun Duan^2
,,
Qinmin Yang^3
,,
Wenxin Liu^{1
,
,}

1.
Smart Microgrid and Renewable Technology (SMRT) Research Laboratory, Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, PA 18015 USA
2.
GEIRI North America, San Jose, CA 95134 USA
3.
State Key Laboratory of Industrial Control Technology, College of Control Science and Engineering, Zhejiang University, Hangzhou 310027, China

Funds:

the U.S. Office of Naval Research N00014-16-1-3121

the U.S. Office of Naval Research N00014-18-1-2185

the National Natural Science Foundation of China 61673347

the National Natural Science Foundation of China U1609214

the National Natural Science Foundation of China 61751205

More Information

Author Bio:
Jiangkai Peng(S'16) received his B.Eng. (Hons) degree in electronics and electrical engineering from The University of Edinburgh, Edinburgh, UK, and South China University of Technology, Guangzhou, China in 2016. Currently, he is pursuing the Ph.D. degree in electrical engineering at Lehigh University, Bethlehem, PA, USA. His research interest includes microgrid, power electronics control system, and power system. (email: jip216@lehigh.edu)

Bo Fan(S'15) received the bachelor's degree in automation from Zhejiang University, China, in 2014, where he is currently pursuing the Ph.D. degree in control science and engineering. He is a member of the Group of Networked Sensing and Control (IIPC-NeSC), State Key Laboratory of Industrial Control Technology, Zhejiang University. His current research interests include distributed control, nonlinear systems, and renewable energy systems. (e-mail: kanade@zju.edu.cn)

Jiajun Duan(S'14) received the B.S. degree in power system and its automation from Sichuan University, China, and M.S. degree in electrical engineering at Lehigh University, Bethlehem, USA in 2013 and 2015, respectively, and the Ph.D. degree in electrical engineering from Lehigh University in 2018. Currently, he is a Postdoctoral Researcher in GEIRINA, San Jose, CA, USA. His research interests include power system, power electronics, control systems, machine learning and deep learning. (e-mail: Jiajun.duan@geirina.net)

Qinmin Yang (M'10) received the bachelor degree in electrical engineering from Civil Aviation University of China, China in 2001, the Master of Science Degree in control science and engineering from Institute of Automation, Chinese Academy of Sciences, China in 2004, and the Ph.D. degree in electrical engineering from the University of Missouri-Rolla, USA, in 2007.
From 2007 to 2008, he was a Post-doctoral Research Associate at University of Missouri-Rolla. In 2008, he was a System Engineer with Caterpillar Inc. From 2009 to 2010, he was a Post-doctoral Research Associate at University of Connecticut. Since 2010, he has been with the State Key Laboratory of Industrial Control Technology, the College of Control Science and Engineering, Zhejiang University, China, where he is currently a Professor. His research interests include intelligent control, renewable energy systems, smart grid, and industrial big data. (e-mail:qmyang@zju.edu.cn)

Wenxin Liu(S'01-M'05-SM'14) received the B.S. degree in industrial automation and the M.S. degree in control theory and applications from Northeastern University, China, in 1996 and 2000, respectively, and the Ph.D. degree in electrical engineering from the Missouri University of Science and Technology (formerly University of Missouri-Rolla), Rolla, MO, USA, in 2005.
From 2005 to 2009, he was an Assistant Scholar Scientist with the Center for Advanced Power Systems, Florida State University, Tallahassee, FL, USA. From 2009 to 2014, he was an Assistant Professor with the Klipsch School of Electrical and Computer Engineering, New Mexico State University, Las Cruces, NM, USA. He is currently an Associate Professor with the Department of Electrical and Computer Engineering, Lehigh University, Bethlehem, PA, USA. His research interests include power systems, power electronics, and controls.
Dr. Liu is an Editor of the IEEE Transactions on Smart Grid, an Associate Editor of the IEEE Transactions on Industrial Informatics, and an Editor of the Journal of Electrical Engineering & Technology
Corresponding author: Wenxin Liu, email: wliu@lehigh.edu
Received Date: 2018-10-10
Revised Date: 2018-11-29
Accepted Date: 2018-12-05

Abstract

Abstract

A single-bus DC microgrid can represent a wide range of applications. Control objectives of such systems include high-performance bus voltage regulation and proper load sharing among multiple distributed generators (DGs) under various operating conditions. This paper presents a novel decentralized control algorithm that can guarantee both the transient voltage control performance and realize the predefined load sharing percentages. First, the output-constrained control problem is transformed into an equivalent unconstrained one. Second, a two-step backstepping control algorithm is designed based on the transformed model for bus-voltage regulation. Since the overall control effort can be split proportionally and calculated with locally-measurable signals, decentralized load sharing can be realized. The control design requires neither accurate parameters of the output filters nor load measurement. The stability of the transformed systems under the proposed control algorithm can indirectly guarantee the transient bus voltage performance of the original system. Additionally, the high-performance control design is robust, flexible, and reliable. Switch-level simulations under both normal and fault operating conditions demonstrate the effectiveness of the proposed algorithm.
- DC microgrids,
- decentralized control,
- paralleled converters,
- output constraint

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References(33)

References

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Adaptive Decentralized Output-Constrained Control of Single-Bus DC Microgrids

doi: 10.1109/JAS.2019.1911387

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