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
  • Bohang Fang,* Yue Chen, and Changhong Zhao. Approximating dispatchable regions in three-phase radial networks with conditions for exact SDP relaxation. IEEE Transactions on Power Systems, accepted, DOI: 10.1109/TPWRS.2026.3697977.
  • 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.
  • 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.
  • 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.
  • Heng Liang,* Xinyang Zhou, and Changhong Zhao. A hierarchical OPF algorithm with improved gradient evaluation in three-phase networks. IEEE Transactions on Control of Network Systems, 12(1):825-837, 2025. (*student)
Research Interest

  • Control and optimization
  • Power systems
Courses Taught

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