no code implementations • 29 Nov 2018 • Yao Cui, Zhehan Yi, Jiajun Duan, Di Shi, Zhiwei Wang
This paper proposes a resilient-backpropagation-neural-network-(Rprop-NN) based algorithm for Photovoltaic (PV) maximum power point tracking (MPPT).
no code implementations • 29 Nov 2018 • Jiajun Duan, Zhehan Yi, Di Shi, Hao Xu, Zhiwei Wang
Conventional control strategies usually produce large disturbances to buses during charging and discharging (C&D) processes of UCs, which significantly degrades the power quality and system performance, especially under fast C&D modes.
no code implementations • 20 Feb 2019 • Yishen Wang, Xiao Lu, Yiran Xu, Di Shi, Zhehan Yi, Jiajun Duan, Zhiwei Wang
Traditional load analysis is facing challenges with the new electricity usage patterns due to demand response as well as increasing deployment of distributed generations, including photovoltaics (PV), electric vehicles (EV), and energy storage systems (ESS).
no code implementations • 26 Mar 2019 • Yayu Peng, Yishen Wang, Xiao Lu, Haifeng Li, Di Shi, Zhiwei Wang, Jie Li
Short-term load forecasting (STLF) is essential for the reliable and economic operation of power systems.
no code implementations • 26 Mar 2019 • Qicheng Chang, Yishen Wang, Xiao Lu, Di Shi, Haifeng Li, Jiajun Duan, Zhiwei Wang
In the first stage, all related features are utilized to train a point forecast model and also obtain the feature importance.
no code implementations • 24 Apr 2019 • Ruisheng Diao, Zhiwei Wang, Di Shi, Qianyun Chang, Jiajun Duan, Xiaohu Zhang
Modern power grids are experiencing grand challenges caused by the stochastic and dynamic nature of growing renewable energy and demand response.
no code implementations • 8 Nov 2019 • Xinan Wang, Yishen Wang, Di Shi, Jianhui Wang, Zhiwei Wang
However, a detailed WECC CLM model typically has a high degree of complexity, with over one hundred parameters, and no systematic approach to identifying and calibrating these parameters.
no code implementations • 7 Aug 2020 • Xinan Wang, Yishen Wang, Di Shi, Jianhui Wang, Siqi Wang, Ruisheng Diao, Zhiwei Wang
Since the load dynamics have substantial impacts on power system transient stability, load models are one critical factor that affects the power transfer limits.
no code implementations • 11 Dec 2020 • Ruisheng Diao, Di Shi, Bei Zhang, Siqi Wang, Haifeng Li, Chunlei Xu, Tu Lan, Desong Bian, Jiajun Duan
Deriving fast and effectively coordinated control actions remains a grand challenge affecting the secure and economic operation of today's large-scale power grid.
Optimization and Control Systems and Control Systems and Control
no code implementations • 23 Dec 2020 • Xiren Zhou, Siqi Wang, Ruisheng Diao, Desong Bian, Jiahui Duan, Di Shi
Recently, deep reinforcement learning (DRL)-based approach has shown promisein solving complex decision and control problems in power engineering domain. In this paper, we present an in-depth analysis of DRL-based voltage control fromaspects of algorithm selection, state space representation, and reward engineering. To resolve observed issues, we propose a novel imitation learning-based approachto directly map power grid operating points to effective actions without any interimreinforcement learning process.
no code implementations • 30 Jan 2022 • Yi Zhou, Liangcai Zhou, Di Shi, Xiaoying Zhao
With widespread deployment of renewables, the electric power grids are experiencing increasing dynamics and uncertainties, with its secure operation being threatened.
no code implementations • 20 Oct 2023 • Ying Zhang, Junbo Zhao, Di Shi, Sungjoo Chung
Distribution system state estimation (DSSE) is paramount for effective state monitoring and control.