Search Results for author: Yijun Xu

Found 9 papers, 2 papers with code

On the Solution Uniqueness of Data-Driven Modeling of Flexible Loads

1 code implementation22 Mar 2024 Shuai Lu, Jiayi Ding, Wei Gu, Junpeng Zhu, Yijun Xu, ZhaoYang Dong, Zezheng Sun

To address this, we analyze the structural and practical identifiability of the PFL model, deriving the condition for the solution uniqueness.

Semi-implicit Continuous Newton Method for Power Flow Analysis

no code implementations5 Dec 2023 Ruizhi Yu, Wei Gu, Shuai Lu, Yijun Xu

This paper proposes a semi-implicit version of continuous Newton method (CNM) for power flow analysis.

Privacy-Preserved Aggregate Thermal Dynamic Model of Buildings

no code implementations12 Oct 2023 Zeyin Hou, Shuai Lu, Yijun Xu, Haifeng Qiu, Wei Gu, ZhaoYang Dong, Shixing Ding

The thermal inertia of buildings brings considerable flexibility to the heating and cooling load, which is known to be a promising demand response resource.

Aggregate Model of District Heating Network for Integrated Energy Dispatch: A Physically Informed Data-Driven Approach

1 code implementation21 Aug 2023 Shuai Lu, Zihang Gao, Yong Sun, Suhan Zhang, Baoju Li, Chengliang Hao, Yijun Xu, Wei Gu

Second, we propose a physics-informed estimator for the AGM that is robust to low-quality measurements, in which the physical constraints associated with the parameter normalization and sparsity are embedded to improve the accuracy and robustness.

Computationally Enhanced Approach for Chance-Constrained OPF Considering Voltage Stability

no code implementations26 Jun 2023 Yuanxi Wu, Zhi Wu, Yijun Xu, Huan Long, Wei Gu, Shu Zheng, Jingtao Zhao

The effective management of stochastic characteristics of renewable power generations is vital for ensuring the stable and secure operation of power systems.

Management

Propagating Parameter Uncertainty in Power System Nonlinear Dynamic Simulations Using a Koopman Operator-Based Surrogate Model

no code implementations31 Mar 2023 Yijun Xu, Marcos Netto, Lamine Mili

We propose a Koopman operator-based surrogate model for propagating parameter uncertainties in power system nonlinear dynamic simulations.

Computational Efficiency

A Robust Data-driven Process Modeling Applied to Time-series Stochastic Power Flow

no code implementations6 Jan 2023 Pooja Algikar, Yijun Xu, Somayeh Yarahmadi, Lamine Mili

The proposed method is demonstrated on the IEEE 33-Bus power distribution system and a real-world unbalanced 240-bus power distribution system heavily integrated with renewable energy sources.

Time Series Time Series Analysis

An Adaptive-Importance-Sampling-Enhanced Bayesian Approach for Topology Estimation in an Unbalanced Power Distribution System

no code implementations18 Oct 2021 Yijun Xu, Jaber Valinejad, Mert Korkali, Lamine Mili, Yajun Wang, Xiao Chen, Zongsheng Zheng

To overcome the above challenges, this paper proposes a Bayesian-inference framework that allows us to simultaneously estimate the topology and the state of a three-phase, unbalanced power distribution system.

Bayesian Inference

Hierarchical Interactive Architecture based on Coalition Formation for Neighborhood System Decision Making

no code implementations15 Oct 2019 Jaber Valinejad, Mousa Marzband, Mert Korkali, Yijun Xu, Ameena Saad Al Sumaiti

The global optimal performance in terms of energy cost is met for a market structure (H-MGs, consumers, and retailers) at a Nash optimum point for the formulated scheduling game considering local and general constraints on the spot market.

Optimization and Control -

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