no code implementations • 26 Mar 2024 • Steven H. Low
We consider the problem of identifying the admittance matrix of a three-phase radial network from voltage and current measurements at a subset of nodes.
1 code implementation • 16 Sep 2022 • Jie Feng, Yuanyuan Shi, Guannan Qu, Steven H. Low, Anima Anandkumar, Adam Wierman
In this paper, we propose a stability-constrained reinforcement learning (RL) method for real-time voltage control, that guarantees system stability both during policy learning and deployment of the learned policy.
no code implementations • 7 Jun 2022 • Xiang Pan, Wanjun Huang, Minghua Chen, Steven H. Low
The existence of multiple load-solution mappings of non-convex AC-OPF problems poses a fundamental challenge to deep neural network (DNN) schemes.
no code implementations • 12 May 2022 • Chen Liang, Alessandro Zocca, Steven H. Low, Adam Wierman
Transmission power systems usually consist of interconnected sub-grids that are operated relatively independently.
no code implementations • 15 Dec 2021 • Tianyu Zhao, Xiang Pan, Minghua Chen, Steven H. Low
We systematically calibrate inequality constraints used in DNN training, thereby anticipating prediction errors and ensuring the resulting solutions remain feasible.
no code implementations • NeurIPS 2021 • Tongxin Li, Ruixiao Yang, Guannan Qu, Guanya Shi, Chenkai Yu, Adam Wierman, Steven H. Low
Motivated by online learning methods, we design a self-tuning policy that adaptively learns the trust parameter $\lambda$ with a competitive ratio that depends on $\varepsilon$ and the variation of system perturbations and predictions.
1 code implementation • 22 Mar 2021 • Wanjun Huang, Xiang Pan, Minghua Chen, Steven H. Low
AC optimal power flow (AC-OPF) problems need to be solved more frequently in the future to maintain stable and economic power system operation.
no code implementations • 21 Dec 2020 • Tongxin Li, Bo Sun, Yue Chen, Zixin Ye, Steven H. Low, Adam Wierman
To be used effectively, an aggregator must be able to communicate the available flexibility of the loads they control, as known as the aggregate flexibility to a system operator.
Optimization and Control Systems and Control Systems and Control
1 code implementation • 4 Dec 2020 • Zachary J. Lee, George Lee, Ted Lee, Cheng Jin, Rand Lee, Zhi Low, Daniel Chang, Christine Ortega, Steven H. Low
We describe the architecture and algorithms of the Adaptive Charging Network (ACN), which was first deployed on the Caltech campus in early 2016 and is currently operating at over 100 other sites in the United States.
1 code implementation • 4 Dec 2020 • Zachary J. Lee, Sunash Sharma, Daniel Johansson, Steven H. Low
ACN-Sim is a data-driven, open-source simulation environment designed to accelerate research in the field of smart electric vehicle (EV) charging.
no code implementations • 2 Jul 2020 • Xiang Pan, Minghua Chen, Tianyu Zhao, Steven H. Low
High percentage penetrations of renewable energy generations introduce significant uncertainty into power systems.
no code implementations • 22 May 2020 • Chen Liang, Linqi Guo, Alessandro Zocca, Steven H. Low, Adam Wierman
Transmission line failures in power systems propagate and cascade non-locally.
no code implementations • 22 May 2020 • Linqi Guo, Chen Liang, Alessandro Zocca, Steven H. Low, Adam Wierman
Transmission line failure in power systems prop-agate non-locally, making the control of the resulting outages extremely difficult.
no code implementations • 20 May 2020 • Linqi Guo, Chen Liang, Alessandro Zocca, Steven H. Low, Adam Wierman
Transmission line failures in power systems propagate non-locally, making the control of the resulting outages extremely difficult.
1 code implementation • 5 Nov 2017 • Omid Ardakanian, Vincent W. S. Wong, Roel Dobbe, Steven H. Low, Alexandra von Meier, Claire Tomlin, Ye Yuan
Large-scale integration of distributed energy resources into residential distribution feeders necessitates careful control of their operation through power flow analysis.