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Difference between revisions of "Xuan"

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'''Xuan Zhang'''
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'''Dr. Xuan Zhang'''
  
D.Phil (Ph.D) Candidate, University of Oxford
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Assistant Professor at Tsinghua-Berkeley Shenzhen Institute (TBSI)
[[Image:Xuan.jpg |thumb]]
 
  
[http://sysos.eng.ox.ac.uk/control/sysos/index.php/Main_Page SySOS]
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[http://www.tbsi.edu.cn/en/index.php?s=/cms/407.html TBSI Website]
  
• [http://www.eng.ox.ac.uk/control Control Group], [http://www.eng.ox.ac.uk/ Department of Engineering Science]
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Post Doctoral Fellow in School of Engineering and Applied Sciences (SEAS), and Harvard Center for Green Buildings and Cities (CGBC), Harvard University
  
[http://www.some.ox.ac.uk/ Somerville College]
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[http://scholar.harvard.edu/xuanzhang/home Harvard Website]
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[[Image: Xuanphoto.jpg |thumb]]
  
 
== Background ==
 
== Background ==
I am currently a third year D.Phil student in Control Engineering in Department of Engineering Science, University of Oxford. My supervisor is [http://sysos.eng.ox.ac.uk/control/sysos/index.php/User:Antonis Dr. Antonis Papachristodoulou]. Before joining Oxford, I received my B.Eng degree from [http://www.tsinghua.edu.cn/publish/auen/index.html Department of Automation], [http://www.tsinghua.edu.cn/publish/then/index.html Tsinghua University], China, in 2011.
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In 2015, I completed my D.Phil Programme in Control Engineering in Department of Engineering Science, University of Oxford, under the supervision of [http://sysos.eng.ox.ac.uk/control/sysos/index.php/User:Antonis Prof. Antonis Papachristodoulou]. Before joining Oxford, I received my B.Eng degree from Department of Automation, Tsinghua University, China, in 2011. From Sep. 2014 to Dec. 2014, I was a visiting graduate student in [http://www.seas.harvard.edu/directory/nali Prof. Na Li]'s group in School of Engineering and Applied Sciences (SEAS), Harvard University.
  
 
== Research Interests ==
 
== Research Interests ==
• Networked systems: optimization and control for smart power networks, network congestion control, consensus of multi-agent systems
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• Networked systems: Optimization and control for smart power networks; HVAC system control in energy efficient buildings; network congestion control/utility maximization; consensus of multi-agent systems through mean-field games; linear (time-delay) systems with input saturation and delay.
  
• Convex optimization
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• Convex optimization, reverse- and forward-engineering.
  
• Nonlinear dynamical systems: stability and robust analysis
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• Nonlinear dynamical systems, Lyapunov stability.
  
== Research Experience ==
+
== Publications ==
A real-time control framework for smart power networks
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1. R. Kang, X. Zhang, A. Papachristodoulou and M. McCulloch, '''Indicating low voltage network stress using tap change detection'''. IET Generation, Transmission and Distribution, 2017, submitted.
  
-- October 2011-present
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2. X. Zhang, A. Papachristodoulou and N. Li, '''Distributed control for reaching optimal steady state in network systems: An optimization approach'''. IEEE Transactions on Automatic Control, vol. 63, no. 3, pp. 864-871, 2018. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8006269][https://nali.seas.harvard.edu/files/nali/files/2017tac_rfe.pdf [Long version]]
  
-- D.Phil research project, Department of Engineering Science, University of Oxford
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3. D. Bauso, X. Zhang and A. Papachristodoulou, '''Density flow in dynamical networks via mean-field games'''. IEEE Transactions on Automatic Control, vol. 62, no. 3, pp. 1342-1355, 2017. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7499816]
  
-- Supervisor: Antonis Papachristodoulou
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4. X. Zhang, R. Kang, M. McCulloch and A. Papachristodoulou, '''Real-time active and reactive power regulation in power systems with tap-changing transformers and controllable loads'''. Sustainable Energy, Grids and Networks, vol. 5, pp. 27–38, 2016. [http://www.sciencedirect.com/science/article/pii/S2352467715000569]
  
-- Designed a decentralized feedback architecture that realized real-time economic optimization for smart power networks. Detailed      work includes optimization decomposition, stability analysis, performance/robustness improvement, system analysis with time delays, etc.  
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5. X. Zhang, A. Papachristodoulou and N. Li, '''Distributed optimal steady-state control using reverse- and forward-engineering'''. In Proceedings of 54th IEEE Conference on Decision and Control, pp. 5257-5264, 2015. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7403042]
  
 +
6. X. Zhang, N. Li and A. Papachristodoulou, '''Achieving real-time economic dispatch in power networks via a saddle point design approach'''. In Proceedings of 2015 IEEE Power and Energy Society General Meeting, pp. 1-5, 2015. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7286222][[Media:PESSupplementary.pdf | [Supplementary note]]]
  
• Hover and flip control for quadrotor helicopters
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7. X. Zhang and A. Papachristodoulou, '''A real-time control framework for smart power networks: Design methodology and stability'''. Automatica, vol. 58, pp. 43–50, 2015. [http://www.sciencedirect.com/science/article/pii/S0005109815001934]
  
-- January 2011-June 2011
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8. X. Zhang and A. Papachristodoulou, '''Improving the performance of network congestion control algorithms'''. IEEE Transactions on Automatic Control, vol. 60, no. 2, pp. 522–527, 2015. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6849427]
  
-- Graduation project, Institute of Control Theory and Technology, Department of Automation, Tsinghua University
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9. X. Zhang and A. Papachristodoulou, '''Redesigning generation control in power systems: Methodology, stability and delay robustness'''. In Proceedings of 53rd IEEE Conference on Decision and Control, pp. 953-958, 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7039504]
  
-- Supervisor: Yisheng Zhong
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10. D. Bauso, X. Zhang and A. Papachristodoulou, '''Density flow over networks: A mean-field game theoretic approach'''. In Proceedings of 53rd IEEE Conference on Decision and Control, pp. 3469-3474, 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7039927]
  
-- Developed a simulation platform for the control design for quadrotor helicopters, which was implemented in Matlab Simulink. Designed PD, PID, fuzzy PD, fuzzy PID controllers for the hover of an XAircraft 650 quadrotor helicopter. Tested the PD controller on the quadrotor helicopter and achieved good performances. Designed Trajectory Linearization Control (TLC) schemes for the flip of the quadrotor helicopter, the effectiveness of which was verified through simulations.
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11. D. Bauso, X. Zhang and A. Papachristodoulou, '''Density flow over networks: A mean-field game theoretic approach'''. Extended abstract, in Proceedings of 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS), pp. 479, 2014. [http://fwn06.housing.rug.nl/mtns2014-papers/extendedAbstracts/0294.pdf]
  
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12. X. Zhang and A. Papachristodoulou, '''A distributed PID controller for network congestion control problems'''. In Proceedings of 2014 American Control Conference, pp. 5453-5458 , 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6858963]
  
• Face detection and recognition for rescue robots
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13. X. Zhang and A. Papachristodoulou, '''Distributed dynamic feedback control for smart power networks with tree topology'''. In Proceedings of 2014 American Control Conference, pp. 1156-1161 , 2014. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6858966]
  
-- July 2010-August 2010
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14. X. Zhang and A. Papachristodoulou, '''A real-time control framework for smart power networks with star topology'''. In Proceedings of 2013 American Control Conference, pp. 5062–5067, 2013. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6580624]
  
-- Summer project, Navigation and Control Research Center, Department of Automation, Tsinghua University
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== Theses ==
 
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1. X. Zhang, '''Scalable (Re)design Frameworks for Optimal, Distributed Control in Power Networks'''. D.Phil. thesis, University of Oxford, UK, September 2015. [http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.667027]
-- Supervisor: Tao Zhang
 
 
 
-- Developed parts of a C++ (OpenCV) programme that implemented remote communication, face detection, face recognition and video stream processing for rescue robots. Implemented the programme on a robot vehicle and achieved good performances.
 
 
 
 
 
• Reinforcement learning for traffic signal control
 
 
 
-- October 2009-May 2010
 
 
 
-- Student research training project, Institute of System Engineering, Department of Automation, Tsinghua University
 
 
 
-- Supervisor: Yi Zhang
 
 
 
-- Designed a new self-adaptive control algorithm based on reinforcement learning for urban traffic signal control. Implemented the algorithm in Green Light District (a Java simulator for intelligent transportation system), which behaved more efficiently than several traditional traffic signal control methods.
 
 
 
== Publications ==
 
7. D. Bauso, A. Papachristodoulou and X. Zhang, '''Consensus through Mean-field Games in Network Flow Problems'''. In International Symposium on Communications, Control, and Signal Processing (ISCCSP), 2014. Submitted.
 
 
 
6. D. Bauso, X. Zhang and A. Papachristodoulou, '''Consensus on Path Density in Network Flow Problems'''. In European Control Conference, 2014. Submitted.
 
 
 
5. X. Zhang and A. Papachristodoulou, '''Improving the Performance of Network Congestion Control Algorithms'''. IEEE Transactions on Automatic Control, 2013. Submitted.
 
  
4. X. Zhang and A. Papachristodoulou, '''A Distributed PID Controller for Network Utility Maximization Problems'''. In American Control Conference, 2014. Submitted.
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2. X. Zhang, '''Hover and Flip Control for Quadrotor Helicopters'''. Bachelor thesis, Tsinghua University, China, June 2011. [http://oaps.lib.tsinghua.edu.cn/xmlui/handle/123456789/2143]
 
 
3. X. Zhang and A. Papachristodoulou, '''Decentralized Dynamic Feedback Control for Smart Power Networks with Tree Topology'''. In American Control Conference, 2014. Submitted.
 
 
 
2. X. Zhang and A. Papachristodoulou, '''A Real-time Control Framework for Smart Power Networks: Design Methodology, Stability and Performance'''. IEEE Transaction on Smart Grid, 2013. Submitted.
 
 
 
1. X. Zhang and A. Papachristodoulou, '''A Real-time Control Framework for Smart Power Networks with Star Topology'''. In Proceedings of the American Control Conference, Washington, DC, June 2013. [http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6580624]
 
 
 
== Theses ==
 
1. X. Zhang, '''Hover and Flip Control for Quadrotor Helicopters'''. Bachelor thesis, Tsinghua University, China, June 2011. [http://oaps.lib.tsinghua.edu.cn/xmlui/handle/123456789/2143]
 
  
 
== Miscellaneous ==
 
== Miscellaneous ==
 
1. X. Zhang and A. Papachristodoulou, '''A Real-time Control Framework for the Future Power Gird'''. Contributed poster in 32nd CNLS Annual Conference, Optimization and Control for Smart Grids, Santa Fe, NM, May 2012.
 
1. X. Zhang and A. Papachristodoulou, '''A Real-time Control Framework for the Future Power Gird'''. Contributed poster in 32nd CNLS Annual Conference, Optimization and Control for Smart Grids, Santa Fe, NM, May 2012.
 +
 +
2. X. Zhang, Y. Wang, H. Duan, Z. Li and Y. Zhang, '''Self-adaptive Control of Urban Traffic Signals Based on Reinforcement Learning'''. Technical report, Tsinghua University, China, May 2010.
  
 
== Teaching Experience ==
 
== Teaching Experience ==
 +
• 2013-2014: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford
 +
 
• 2012-2013: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford
 
• 2012-2013: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford
  
Line 91: Line 68:
  
 
== Contact Information ==
 
== Contact Information ==
• Email: xuan.zhang@eng.ox.ac.uk
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• Email: xuan point zhang at eng point ox point ac point uk
  
 
• Department Address: Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, United Kingdom
 
• Department Address: Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, United Kingdom

Latest revision as of 07:27, 13 April 2018

Dr. Xuan Zhang

Assistant Professor at Tsinghua-Berkeley Shenzhen Institute (TBSI)

TBSI Website

Post Doctoral Fellow in School of Engineering and Applied Sciences (SEAS), and Harvard Center for Green Buildings and Cities (CGBC), Harvard University

Harvard Website

Xuanphoto.jpg

Background

In 2015, I completed my D.Phil Programme in Control Engineering in Department of Engineering Science, University of Oxford, under the supervision of Prof. Antonis Papachristodoulou. Before joining Oxford, I received my B.Eng degree from Department of Automation, Tsinghua University, China, in 2011. From Sep. 2014 to Dec. 2014, I was a visiting graduate student in Prof. Na Li's group in School of Engineering and Applied Sciences (SEAS), Harvard University.

Research Interests

• Networked systems: Optimization and control for smart power networks; HVAC system control in energy efficient buildings; network congestion control/utility maximization; consensus of multi-agent systems through mean-field games; linear (time-delay) systems with input saturation and delay.

• Convex optimization, reverse- and forward-engineering.

• Nonlinear dynamical systems, Lyapunov stability.

Publications

1. R. Kang, X. Zhang, A. Papachristodoulou and M. McCulloch, Indicating low voltage network stress using tap change detection. IET Generation, Transmission and Distribution, 2017, submitted.

2. X. Zhang, A. Papachristodoulou and N. Li, Distributed control for reaching optimal steady state in network systems: An optimization approach. IEEE Transactions on Automatic Control, vol. 63, no. 3, pp. 864-871, 2018. [1][Long version]

3. D. Bauso, X. Zhang and A. Papachristodoulou, Density flow in dynamical networks via mean-field games. IEEE Transactions on Automatic Control, vol. 62, no. 3, pp. 1342-1355, 2017. [2]

4. X. Zhang, R. Kang, M. McCulloch and A. Papachristodoulou, Real-time active and reactive power regulation in power systems with tap-changing transformers and controllable loads. Sustainable Energy, Grids and Networks, vol. 5, pp. 27–38, 2016. [3]

5. X. Zhang, A. Papachristodoulou and N. Li, Distributed optimal steady-state control using reverse- and forward-engineering. In Proceedings of 54th IEEE Conference on Decision and Control, pp. 5257-5264, 2015. [4]

6. X. Zhang, N. Li and A. Papachristodoulou, Achieving real-time economic dispatch in power networks via a saddle point design approach. In Proceedings of 2015 IEEE Power and Energy Society General Meeting, pp. 1-5, 2015. [5] [Supplementary note]

7. X. Zhang and A. Papachristodoulou, A real-time control framework for smart power networks: Design methodology and stability. Automatica, vol. 58, pp. 43–50, 2015. [6]

8. X. Zhang and A. Papachristodoulou, Improving the performance of network congestion control algorithms. IEEE Transactions on Automatic Control, vol. 60, no. 2, pp. 522–527, 2015. [7]

9. X. Zhang and A. Papachristodoulou, Redesigning generation control in power systems: Methodology, stability and delay robustness. In Proceedings of 53rd IEEE Conference on Decision and Control, pp. 953-958, 2014. [8]

10. D. Bauso, X. Zhang and A. Papachristodoulou, Density flow over networks: A mean-field game theoretic approach. In Proceedings of 53rd IEEE Conference on Decision and Control, pp. 3469-3474, 2014. [9]

11. D. Bauso, X. Zhang and A. Papachristodoulou, Density flow over networks: A mean-field game theoretic approach. Extended abstract, in Proceedings of 21st International Symposium on Mathematical Theory of Networks and Systems (MTNS), pp. 479, 2014. [10]

12. X. Zhang and A. Papachristodoulou, A distributed PID controller for network congestion control problems. In Proceedings of 2014 American Control Conference, pp. 5453-5458 , 2014. [11]

13. X. Zhang and A. Papachristodoulou, Distributed dynamic feedback control for smart power networks with tree topology. In Proceedings of 2014 American Control Conference, pp. 1156-1161 , 2014. [12]

14. X. Zhang and A. Papachristodoulou, A real-time control framework for smart power networks with star topology. In Proceedings of 2013 American Control Conference, pp. 5062–5067, 2013. [13]

Theses

1. X. Zhang, Scalable (Re)design Frameworks for Optimal, Distributed Control in Power Networks. D.Phil. thesis, University of Oxford, UK, September 2015. [14]

2. X. Zhang, Hover and Flip Control for Quadrotor Helicopters. Bachelor thesis, Tsinghua University, China, June 2011. [15]

Miscellaneous

1. X. Zhang and A. Papachristodoulou, A Real-time Control Framework for the Future Power Gird. Contributed poster in 32nd CNLS Annual Conference, Optimization and Control for Smart Grids, Santa Fe, NM, May 2012.

2. X. Zhang, Y. Wang, H. Duan, Z. Li and Y. Zhang, Self-adaptive Control of Urban Traffic Signals Based on Reinforcement Learning. Technical report, Tsinghua University, China, May 2010.

Teaching Experience

• 2013-2014: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford

• 2012-2013: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford

• 2011-2012: Demonstrator, 2nd Year Helicopter Control Lab, University of Oxford

Contact Information

• Email: xuan point zhang at eng point ox point ac point uk

• Department Address: Department of Engineering Science, University of Oxford, Parks Road, Oxford, OX1 3PJ, United Kingdom