Prof. ZHAO Changhong 趙常宏教授

Assistant Professor (MIEEE)
Education: BE (Tsinghua), MS, PhD (Caltech)
Research Area: Networking Theory, Internet and Applications
Tel: (852) 3943-5157
Fax: (852) 2603-5032
Address: Rm 806, Ho Sin Hang Engineering Building, CUHK
Email: chzhao [@] ie.cuhk.edu.hk

Prof. Zhao's website

Research Interests

  • Control of network systems
  • Nonconvex optimization
  • Cyber-physical systems
  • Power systems and smart grid

Courses Taught

  • Signals and Systems


Changhong Zhao joined the Department of Information Engineering at CUHK in August 2019. He received BE degree in Automation from Tsinghua University in 2010, and MS and PhD degrees in Electrical Engineering from Caltech in 2012 and 2016, respectively. His PhD thesis won Wilts Prize from Caltech EE Department and Demetriades Prize from Caltech EAS Division. From 2016 to 2019, he worked as a researcher at National Renewable Energy Laboratory, Colorado, US, where he led and contributed to multiple projects on control and optimization of smart grid in collaboration with US Department of Energy and academic and industry partners.

Recent Selected Publications

  • X. Zhou, Z. Liu, C. Zhao, and L. Chen, "Accelerated voltage regulation in multi-phase distribution networks based on hierarchical distributed algorithm," IEEE Transactions on Power Systems, 35(3):2047-2058, May 2020.
  • E. Weitenberg, Y. Jiang, C. Zhao, E. Mallada, C. De Persis, and F. Dorfler, "Robust decentralized secondary frequency control in power systems: Merits and trade-offs," IEEE Transactions on Automatic Control, 64(10):3967-3982, October 2019.
  • A. S. Zamzam, E. Dall'Anese, C. Zhao, J. A. Taylor, and N. D. Sidiropoulos, "Optimal water-power flow-problem: Formulation and distributed optimal solution," IEEE Transactions on Control of Network Systems, 6(1):37-47, March 2019.
  • C. Zhao, E. Mallada, S. H. Low, and J. Bialek, "Distributed plug-and-play optimal generator and load control for power system frequency regulation," International Journal of Electrical Power and Energy Systems, 101:1-12, October 2018.
  • S. S. Guggilam, C. Zhao, E. Dall'Anese, Y. C. Chen, and S. V. Dhople, "Optimizing DER participation in inertial and primary-frequency response," IEEE Transactions on Power Systems, 33(5):5194-5205, September 2018.
  • Y. J. Zhang, C. Zhao, W. Tang, and S. H. Low, "Profit-maximizing planning and control of battery energy storage systems for primary frequency control," IEEE Transactions on Smart Grid, 9(2):712-723, March 2018.
  • E. Mallada, C. Zhao, and S. H. Low, "Optimal load-side control for frequency regulation in smart grids," IEEE Transactions on Automatic Control, 62(12):6294-6309, December 2017.
  • C. Zhao, E. Dall'Anese, and S. H. Low, "Convex relaxation of OPF in multiphase radial networks with delta connection," IREP Bulk Power Systems Dynamics and Control Symposium, Espinho, Portugal, August 2017.
  • N. Li, C. Zhao, and L. Chen, "Connecting automatic generation control and economic dispatch from an optimization view," IEEE Transactions on Control of Network Systems, 3(3):254-264, September 2016.
  • C. Zhao, E. Mallada, S. H. Low, and J. Bialek, "A unified framework for frequency control and congestion management," Power Systems Computation Conference, Genoa, Italy, June 2016.
  • C. Zhao, E. Mallada, and F. Dorfler, "Distributed frequency control for stability and economic dispatch in power networks," American Control Conference, Chicago, IL, US, July 2015, pp. 2359-2364.
  • C. Zhao, U. Topcu, N. Li, and S. H. Low, "Design and stability of load-side primary frequency control in power systems," IEEE Transactions on Automatic Control, 59(5):1177-1189, May 2014.