Guoqiang Hu's Webpage

 

Guoqiang Hu, Associate Professor

Director, Centre for System Intelligence and Efficiency (EXQUISITUS)

School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore

Tel: (+65) 6790 4362

E-mail: gqhu@ntu.edu.sg

Personal information

Guoqiang Hu is currently with the School of Electrical and Electronic Engineering at Nanyang Technological University (NTU), Singapore. He received his B.Eng, M.Phil, and Ph.D degrees from University of Science and Technology of China, Hefei, China, the Chinese University of Hong Kong, and University of Florida, Gainesville, FL, USA in 2002, 2004, and 2007, respectively. Prior to his current position, he was a Post-doctoral Research Associate at University of Florida, Gainesville, FL, USA, in 2008 and an Assistant Professor at Kansas State University, Manhattan, KS, USA, from 2008 to 2011.

Research interests

Analysis, control, design and optimization of distributed intelligent systems

  1. Theoretical research:

    1. Distributed control and estimation, distributed optimization and games, distributed decision making

  2. Systems/applications:

    1. Intelligent networked robotics: multi-robot coordination, cloud robotics, swarm intelligence, visual servo control and autonomous systems

    2. Smart energy and building systems: energy management and optimization, fault diagnostics, building automation and control

Selected journal papers by topics:

  • Distributed control and optimization, distributed decision making

  1. C. Sun, G. Hu, and L. Xie, “Controllability of Multi-agent Networks with Antagonistic Interactions,” IEEE Transactions on Automatic Control, accepted, published online, DOI: 10.1109/TAC.2017.2697202.

  2. M. Ye, G. Hu, “Distributed Nash Equilibrium Seeking by A Consensus Based Approach,” IEEE Transactions on Automatic Control, accepted, published online, DOI: 10.1109/TAC.2017.2688452.

  3. C. Sun, M. Ye, G. Hu, “Distributed Time-varying Quadratic Optimization for Multiple Agents under Undirected Graphs,” IEEE Transactions on Automatic Control, accepted, published online, DOI: 10.1109/TAC.2017.2673240.

  4. H. Cai, G. Hu, “Distributed Tracking Control of an Interconnected Leader-follower Multi-agent System,” IEEE Transactions on Automatic Control, accepted, published online, DOI: 10.1109/TAC.2017.2660298.

  5. Z. Feng, G. Wen, G. Hu, “Distributed Secure Coordinated Control for Multi-Agent Systems under Strategic Attacks,” IEEE Transactions on Cybernetics, 47 (5), 1273-1284, 2017.

  6. H. Cai, F. L. Lewis, G. Hu, and J. Huang, “Cooperative Output Regulation of Linear Multi-Agent Systems utilizing the Adaptive Distributed Observer,” Automatica, 75, 299-305, 2017.

  7. B. Chen, G. Hu, D. W. C. Ho, and L. Yu, “Distributed Covariance Intersection Fusion Estimation for Cyber-Physical Systems with Communication Constraints,” IEEE Transactions on Automatic Control, 61 (12), 4020-4026, 2016.

  8. M. Ye, G. Hu, “A Robust Extremum Seeking Scheme for Dynamic Systems with Uncertainties and Disturbances,” Automatica, 66, 172–178, 2016.

  9. B. Chen, G. Hu, W. Zhang, L. Yu, “Distributed Mixed H2H_infinity Fusion Estimation with Limited Communication Capacity,” IEEE Transactions on Automatic Control, 61 (3), 805-810, 2016.

  10. M. Ye, G. Hu, “Distributed Extremum Seeking for Constrained Networked Optimization and Its Application to Energy Consumption Control in Smart Grid,” IEEE Transactions on Control Systems Technology, 24 (6), 2048-2058, 2016.

  11. Z. Feng, G. Hu, G. Wen, “Distributed Consensus Tracking for Multi-Agent Systems under Two Types of Attacks,” International Journal of Robust and Nonlinear Control, 26 (5), 896–918, 2016.

  12. M. Ye, G. Hu, “Distributed Seeking of Time-Varying Nash Equilibrium for Non-Cooperative Games,” IEEE Transactions on Automatic Control, 60 (11), 3000-3005, 2015.

  13. B. Chen, W. Zhang, L. Yu, G. Hu, and H. Song, “Distributed Fusion Estimation with Communication Bandwidth Constraints,” IEEE Transactions on Automatic Control, 60 (5), 1398-1403, 2015.

  14. G. Wen, G. Hu, W. Yu, J. Cao, G. Chen, “Consensus tracking for higher-order multi-agents systems with switching directed topologies and occasionally missing control inputs,” Systems & Control Letters, 62 (12), 1151-1158, 2013.

  15. G. Hu, “Robust Consensus Tracking of a Class of Second-Order Multi-Agent Dynamic Systems,” Systems & Control Letters, 61 (1), 134-142, 2012.

  • Multi-robot coordination, swarm intelligence, cloud robotics

  1. X. Dong, G. Hu, “Time-varying Formation Tracking for Linear Multi-agent Systems with Multiple Leaders,” IEEE Transactions on Automatic Control, accepted, published online, DOI: 10.1109/TAC.2017.2673411.

  2. Z. Feng, G. Hu, W. Ren, W.E. Dixon, and J. Mei, “Distributed Coordination of Multiple Unknown Euler-Lagrange Systems,” IEEE Transactions on Control of Network Systems, accepted, published online, DOI: 10.1109/TCNS.2016.2578039.

  3. Z. Feng, C. Sun, G. Hu, “Robust Connectivity Preserving Rendezvous of Multi-robot Systems”, IEEE Transactions on Control of Network Systems, accepted, published online, DOI: 10.1109/TCNS.2016.2545869.

  4. X. Dong, G. Hu, “Time-varying output formation for general linear multi-agent systems via dynamic output feedback control,” IEEE Transactions on Control of Network Systems, accepted, published online, DOI: 10.1109/TCNS.2015.2489358.

  5. H. Wang, D. Guo, X. Liang, W. Chen, G. Hu, K.K. Leang, “Adaptive Vision-Based Leader-Follower Formation Control of Mobile Robots,” IEEE Transactions on Industrial Electronics, 64 (4), 2893-2902, 2017.

  6. X. Dong, C. Sun, G. Hu, “Time-varying output formation control for linear multi-agent systems with switching topologies,” International Journal of Robust and Nonlinear Control, 26 (16), 3558-3579, 2016.

  7. X. Liang, H. Wang, Y. Liu, W. Chen, G. Hu, J. Zhao, “Adaptive Task-Space Cooperative Tracking Control of Networked Robotic Manipulators without Task-Space Velocity Measurements,” IEEE Transactions on Cybernetics, 46 (10), 2386-2398, 2016.

  8. X. Dong, G. Hu, “Time-varying Formation Control for General Linear Multi-agent Systems with Switching Directed Topologies,” Automatica, 73, 47-55, 2016.

  9. G. Hu, W. Tay, and Y. Wen, “Cloud Robotics: Architecture, Challenges and Applications,” IEEE Network, 28 (3), 21-28, 2012.

  • Visual servo control, robot control

  1. B. Li, Y. Fang, G. Hu, X. Zhang, “Model-Free Unified Tracking and Regulation Visual Servoing of Wheeled Mobile Robots,” IEEE Transactions on Control Systems Technology, 24 (4), 1328-1339, 2016.

  2. N. Gans, G. Hu, J. Shen, Y. Zhang, and W. Dixon, “Adaptive Visual Servo Control to Simultaneously Stabilize Image and Pose Error,” Mechatronics, 22 (4), 410-422, 2012.

  3. G. Hu, W. Dixon, and H. Ding, “Robust Tracking Control of an Array of Nanoparticles Moving on a Substrate,” Automatica, 48 (2), 442-448, 2012.

  4. N. Gans, G. Hu, K. Nagarajan, and W. Dixon, “Keeping Multiple Moving Targets in the Field of View of a Mobile Camera,” IEEE Transactions on Robotics, 27 (4), 822-828, 2011.

  5. G. Hu, N. Gans, N. Fitz-coy, and W. E. Dixon, “Adaptive Homography-based Visual Servo Tracking Control via a Quaternion Formulation,” IEEE Transactions on Control System Technology, 18 (1), 128-135, 2010.

  6. G. Hu, N. Gans, and W. E. Dixon, “Quaternion-Based Visual Servo Control in the Presence of Camera Calibration Error,” International Journal of Robust and Nonlinear Control, 20 (5), 489-503, 2010.

  7. G. Hu, W. Mackunis, N. Gans, W. E. Dixon, J. Chen, A. Behal, D.M. Dawson, “Homography-Based Visual Servo Control with Imperfect Camera Calibration,” IEEE Transactions on Automatic Control, 54 (6), 1318-1324, 2009.

  8. G. Hu, D. Aiken, S. Gupta, and W. E. Dixon, “Lyapunov-Based Range Identification for Paracatadioptric Systems,” IEEE Transactions on Automatic Control, 53 (7), 1775-1781, 2008.

  9. K. Dupree, C. Liang, G. Hu, and W. E. Dixon, “Adaptive Lyapunov-Based Control of a Robot and Mass-Spring System Undergoing an Impact Collision,” IEEE Transactions on Systems, Man and Cybernetics, Part B, 38 (4), 1050-1061, 2008.

  10. G. Hu, C. Makkar, and W. E. Dixon, “Energy-Based Nonlinear Control of Underactuated Euler-Lagrange Systems Subject to Impacts,” IEEE Transactions on Automatic Control, 52 (9), 1742-1748, 2007.

  11. C. Makkar, G. Hu, W. G. Sawyer, and W. E. Dixon, “Lyapunov-Based Tracking Control in the Presence of Uncertain Nonlinear Parameterizable Friction,” IEEE Transactions on Automatic Control, 52 (10), 1988-1994, 2007.

  • Smart energy and building systems

  1. D. Li, Y. Zhou, G. Hu, C.J. Spanos, “Optimal Sensor Configuration and Feature Selection for AHU Fault Detection and Diagnosis,” IEEE Transactions on Industrial Informatics, accepted, published online, DOI: 10.1109/TII.2016.2644669.

  2. H. Cai, G. Hu, “Distributed Nonlinear Hierarchical Control of AC Microgrid via Unreliable Communication,” IEEE Transactions on Smart Grid, accepted, published online, DOI: 10.1109/TSG.2016.2612544.

  3. K. Ma, G. Hu, C.J. Spanos, “Energy Management Considering Load Operations and Forecast Errors with Application to HVAC Systems,” IEEE Transactions on Smart Grid, accepted, published online, DOI: 10.1109/TSG.2016.2558319.

  4. Z. Xu, S. Liu, G. Hu, C.J. Spanos, “Optimal Coordination of Air Conditioning System and Personal Fans for Building Energy Efficiency Improvement,” Energy and Buildings, 141, 308–320, 2017.

  5. M. Ye, G. Hu, “Game Design and Analysis for Price based Demand Response: An Aggregate Game Approach,” IEEE Transactions on Cybernetics, 47 (3), 720-730, 2017.

  6. Y. Fan, G. Hu, M. Egerstedt, “Distributed Reactive Power Sharing Control for Microgrids with Event-Triggered Communication,” IEEE Transactions on Control Systems Technology, 25 (1), 118-128, 2017.

  7. H. Cai, G. Hu, “Distributed Control Scheme for Package-level State-of-charge Balancing of Grid-connected Battery Energy Storage System,” IEEE Transactions on Industrial Informatics, 12 (5), 1919-1929, 2016.

  8. H. Cai, G. Hu, F. L. Lewis, A. Davoudi, “A Distributed Feedforward Approach to Cooperative Control of AC Microgrids,” IEEE Transactions on Power Systems, 31 (5), 4057-4067, 2016.

  9. D. Li, G. Hu, C.J. Spanos, “A Data-driven Strategy for Detection and Diagnosis of Building Chiller Faults Using Linear Discriminant Analysis”, Energy and Buildings, 128, 519-529, 2016.

  10. D. Li, Y. Zhou, G. Hu, C.J. Spanos, “Fault Detection and Diagnosis for Building Cooling System With A Tree-structured Learning Method,” Energy and Buildings, 127, 540-551, 2016.

  11. G. Wen, G. Hu, J. Hu, X. Shi, and G. Chen, “Frequency Regulation of Source-Grid-Load Systems: A Compound Control Strategy,” IEEE Transactions on Industrial Informatics, 12 (1), 69-78, 2016.

  12. K. Ma, G. Hu, C.J. Spanos, “A Cooperative Demand Response Scheme Using Punishment Mechanism and Application to Industrial Refrigerated Warehouses,” IEEE Transactions on Industrial Informatics, 11 (6), 1520-1531, 2015.

  13. K. Ma, G. Hu, C.J. Spanos, “Energy Consumption Control via Real-Time Pricing Feedback in Smart Grid,” IEEE Transactions on Control Systems Technology, 22 (5), 1907-1914, 2014.

Selected conference papers:

  1. M. Ye, G. Hu, “Simultaneous Social Cost Minimization and Nash Equilibrium Seeking in Non-cooperative Games,” Chinese Control Conference (CCC), Dalian, China, accepted, to appear, July 2017. (Finalist for Guan Zhao-Zhi Award)

  2. H. Cai, G. Hu, “Cooperative Output Regulation for a Class of Nonlinear Heterogeneous Multi-Agent Systems,” Chinese Control and Decision Conference (CCDC), Chongqing, China, accepted, to appear, May 2017. (Finalist for Zhang Si-Ying Outstanding Youth Paper Award)

Research projects:

Main ongoing research projects:

  • Swarm Intelligence for Collaborative Robots in Smart Manufacturing, Delta-NTU Corporate Laboratory (2017-2020) (by National Research Foundation (NRF), Delta Electronics International (Singapore) Pte Ltd, Nanyang Technological University)

  • Hub-wide Grid Planning and Management System for Industrial Hubs, Energy Innovation Research Programme (2014-2018) (by Economic Development Board (EDB))

  • Comfort-Driven Distributed ACMV Control Retrofit: Driving Energy Efficiency With Novel Sensing and Control Applications, Energy Innovation Research Programme (2014-2018) (by Building and Construction Authority (BCA))

  • Singapore-Berkeley Building Efficiency and Sustainability in the Tropics, NRF CREATE (2012-2017) (by National Research Foundation (NRF))

Completed research projects:

  • Networked Sensing and Actuation System for Energy Efficiency and Human Comfort, NRF Competitive Research Program (2012-2017) (by National Research Foundation (NRF))

  • Distributed Sensing and Perception, ASTAR Science and Engineering Research Council (2013-2016) (by ASTAR Science & Engineering Research Council (SERC))

  • Project Urban-NAV, Defence Research and Technology Office (DRTech) (2013-2016) (by Defence Research and Technology Office (DRTech))

  • Identifier-Based Consensus for Multi-Agent Systems with Applications to Cooperative Control of Autonomous Robot Networks, Academic Research Fund Tier 1 (2013-2016) (by Ministry of Education (MOE))

  • Efficient Workplace 3D Model Reconstruction Using Sensor Fusion and Machine Learning for Intuitive Robot Path Teaching, SIMTech-NTU (2012-2014) (by ASTAR Singapore Institute of Manufacturing Technology)