ZHAO Changhong

*SHB = Ho Sin Hang Engineering Building, The Chinese University of Hong Kong

Research Interest
  • Control and optimization
  • Power systems
Courses Taught

  • Signals and Systems
  • Networks: Technology, Economics, and Social Interactions

ZHAO Changhong 趙常宏教授

Associate Professor
SMIEEE
BEng (Tsinghua), MS, PhD (Caltech)
(852) 3943-5157
Room 806, SHB*
chzhao [at] ie.cuhk.edu.hk
Website

Prof. Zhao’s research focuses on the control and optimization of power systems, including network topology optimization, large-scale optimization of nonlinear power flow, and machine learning applications in power system control.

He earned his PhD in EE at Caltech in 2016 and worked at the National Renewable Energy Laboratory in Colorado, US until joining CUHK in 2019. He received Early Career Award (top 2%) of Hong Kong Research Grants Council in 2020.

Recent / Selected Publications
  • Runjie Zhang,* Kaiping Qu, Changhong Zhao, and Wanjun Huang. Robust distribution network reconfiguration using mapping-based column-and-constraint generation. IEEE Transactions on Power Systems, accepted, DOI: 10.1109/TPWRS.2026.3684672. (*student)
  • Heng Liang,* Yujin Huang,* and Changhong Zhao. A data-driven real-time optimal power flow algorithm using local feedback in distribution networks. IEEE Transactions on Power Systems, 41(2):1535-1548, 2026. (*student)
  • Bohang Fang,* Changhong Zhao, and Steven H. Low. Convergence of backward/forward sweep for power flow solution in radial networks. IEEE Transactions on Control of Network Systems, 12(2):1780-1792, 2025. (*student)
  • Swaroop S. Guggilam,** Changhong Zhao, Emiliano Dall’Anese, Yu Christine Chen, and Sairaj V. Dhople. Optimizing DER participation in inertial and primary-frequency response. IEEE Transactions on Power Systems, 33(5):5194-5205, 2018. Prize Paper Award (2021): for the best two papers published in 2018-2020 in all five transactions of IEEE Power and Energy Society. (**co-advised intern at NREL)
  • Changhong Zhao, Ufuk Topcu, Na Li, and Steven Low. Design and stability of load-side primary frequency control in power systems. IEEE Transactions on Automatic Control, 59(5):1177-1189, 2014. A core chapter of my PhD thesis which won Wilts Prize (best thesis in EE) and Demetriades Prize (best thesis in renewable energy) at Caltech.
Research Interest

  • Control and optimization
  • Power systems
Courses Taught

  • Signals and Systems
  • Networks: Technology, Economics, and Social Interactions