Explanipedia

A Hybrid GRU-MHSAM-ResNet Model for Short-Term Power Load Forecasting Open

Xin Yang, Fan Zhou, Ran Xu, Yiwen Jiang, Hejun Yang · 2025

Reliable load forecasting is crucial for ensuring optimal dispatch, grid security, and cost efficiency. To address limitations in prediction accuracy and generalization, this paper proposes a hybrid model, GRU-MHSAM-ResNet, which integrate…

Optimal Guidance Mechanism for EV Charging Behavior and Its Impact Assessment on Distribution Network Hosting Capacity Open

Xin Yang, Fan Zhou, Ran Xu, Yong Zhong, Yu Jingjing , et al. · 2025

With the rapid growth in the penetration of Electric Vehicles (EVs), their large-scale uncoordinated charging behavior presents significant challenges to the hosting capacity of traditional distribution networks (DNs). The novelty of this …

A Grid-Based Scenario Delineation Method for Distribution Networks Based on Fuzzy Comprehensive Evaluation and SNN-DPC Clustering Open

Liuzhu Zhu, Xin Yang, Xiuli Wang, Fan Zhou, Zhi Guan , et al. · 2025

Aiming at the problems that the random probability characteristics of large-scale source and load resources lead to the ineffectiveness of deterministic planning methods, the standard grid structure is difficult to adapt to the demands of …

Power supplying unit Delineation Method Using an Equal-Angle Centerline Clustering Algorithm Open

Zhi Guan, Hejun Yang, Jingjing Yu, J.-L. Huang, Anxin He · 2025

Aiming at the existing medium-voltage (MV) distribution grid power supplying unit delineation without considering load complementarity, and the delineation scheme cannot reflect the optimization. This paper proposes a power supplying unit …

A Two-Stage Operation Reliability Evaluation Method of Distribution System Considering Dynamic Scheduling of Flexible Resources Open

Hejun Yang, Yue Yangxu, Yuan Gao, Dabo Zhang, Yue Liu , et al. · 2025

Optimal day-ahead scheduling strategy of microgrid considering regional pollution and potential load curtailment Open

Xinghua Xie, Hejun Yang, Bo Wang, Yinghao Ma, Dabo Zhang , et al. · 2024

With the frequent occurrence of global warming and extreme severe weather, the transition of energy to cleaner, and with lower carbon has gradually become a consensus. Microgrids can integrate multiple energy sources and consume renewable …

Optimization dispatching strategy for an energy storage system considering its unused capacity sharing Open

Hejun Yang, Zhaochen Yang, Siyang Liu, Dabo Zhang, Yun Yu · 2024

In renewable energy systems, energy storage systems can reduce the power fluctuation of renewable energy sources and compensate for the prediction deviation. However, if the renewable energy prediction deviation is small, the energy storag…

Unilateral biportal endoscopic reduction and fusion for grade III lumbar spondylolisthesis: A case report Open

Zhongxin Tang, Qian Tang, Mingkui Shen, Hejun Yang · 2024

Comparative efficacy of UBE-LIF and MIS-TLIF in Lumbar Spondylolisthesis Open

Kuankuan Li, Haijun Ma, Hejun Yang, Zhongxin Tang, H Zhang , et al. · 2024

Objective To evaluate the efficacy of unilateral biportal endoscopy lumbar interbody fusion (UBE-LIF) in the treatment of lumbar spondylolisthesis and instability. Methods A retrospective analysis was performed on 64 single-segment lumbar …

Research on power system flexibility enhancement method based on pre-selection of structure adjustment strategy Open

Yinghao Ma, Chen Liu, Ming Wei, Yuming Shen, Wei Xie , et al. · 2024

The flexibility enhancement method of power system usually focuses on node flexible resource, without considering the transmission process. It may result in some flexible resources not being transferred, thus affecting the accuracy and eff…

Battery energy storage system planning for promoting renewable energy consumption using a constraint boundarization technique Open

Hejun Yang, J.C. Wang, Yinghao Ma, Dabo Zhang, Josep M. Guerrero · 2023

The battery energy storage system (EES) deployed in power system can effectively counteract the power fluctuation of renewable energy source. In the planning and operation process of grid side EES, however, the incorporation of power flow …

Positive-Sum Game-Based Capacity Configuration Planning Method of Solar-Wind-Battery System Designed for Black-Start Open

Hejun Yang, Zhibo Liu, Yinghao Ma · 2023

For achieving the carbon peaking and carbon neutrality goals, the renewable energy and the battery energy storage will be developed more rapidly. The participation of the solar-wind-battery renewable energy system (SWBS) in black-start can…

Optimal guidance strategy for flexible load based on hybrid direct load control and time of use Open

Siyang Liu, Yuan Gao, Hejun Yang, Xinghua Xie, Yinghao Ma · 2023

The time-of-use (TOU) strategy can effectively improve the energy consumption mode of customers, reduce the peak-valley difference of load curve, and optimize the allocation of energy resources. This study presents an Optimal guidance mech…

Transformer maintenance decision based on condition monitoring and fuzzy probability hybrid reliability assessment Open

Dabo Zhang, Zhuwei Chu, Qianjin Gui, Fan Wu, Hejun Yang , et al. · 2022

Equipment maintenance decision is a very critical technology in power grid asset management. The traditional maintenance decision focuses on the analysis of the operation performance of the equipment itself, but lacks the analysis and desc…

Demand response-based commercial mode and operation strategy of customer-side energy storage system Open

Jing Ma, Liuzhu Zhu, Yuming Shen, Xiuting Rong, Hui Zhang , et al. · 2021

With the increasing of uncertainty factors, the adjustable margin of power grid is gradually compressed. The energy storage device is an elastic resource, and it can be used to participate into the demand-side management aiming to increasi…

A reliability review on electrical collection system of battery energy storage power station Open

Yuming Shen, Xiuting Rong, Jing Ma, Jingshu Zhou, Hui Zhang , et al. · 2021

The battery energy storage system is a flexible resource with dual characteristics of source and load. It can be widely used in renewable energy consumption, peak shaving and frequency modulation, virtual power plant, and so on. However, t…

Critical peak rebate strategy and application to demand response Open

Hejun Yang, Xinyu Zhang, Yinghao Ma, Dabo Zhang · 2021

Time-of-use (TOU) pricing strategy is an important component of demand-side management (DSM), but the cost of supplying power during critical peak periods remains high under TOU prices. This affects power system reliability. In addition, T…

Optimization strategy of price‐based demand response considering the bidirectional feedback effect Open

Hejun Yang, Lei Wang, Yinghao Ma, Dabo Zhang, Hongbin Wu · 2021

Time of use pricing strategy can not only reduce the load fluctuation but also improve the power system reliability. Generally, before carrying out a time of use pricing optimization, it needs to perform a period partition optimization for…

Fast Search Algorithm for Key Transmission Sections Based on Topology Converging Adjacency Matrix Open

Dabo Zhang, Wang Nai-jing, Hejun Yang, Yinghao Ma, Yigang He , et al. · 2020

The traditional method of searching transmission section generally has the problem of omission and time-consuming. A topology converging algorithm of power grid adjacency matrix is proposed in this paper. It aggregates neighboring buses ba…

AC Flashover Voltage Model for Polluted Suspension Insulators and an Experimental Investigation in Salt Fog Open

Bingbing Dong, Zhu Zhang, Nianwen Xiang, Hejun Yang, Shuiqing Xu , et al. · 2020

In recent years, the electrical performance of polluted suspension insulators operating in coastal foggy regions has attracted wide attention because of the occurrence of flashover. Surface wetting by salt fog accretion increases the surfa…

Reliability assessment of integrated energy system considering the uncertainty of natural gas pipeline network system Open

Hejun Yang, Yeyu Zhang, Yinghao Ma, Dabo Zhang, Lei Sun , et al. · 2019

Natural gas, as a clean fossil energy, has been widely used in power generation system by converting chemical energy into electrical energy through gas turbines. However, the natural gas pipeline network system (NGPNS) is comprised of many…

Operation Flexibility Evaluation and Its Application to Optimal Planning of Bundled Wind-Thermal-Storage Generation System Open

Yinghao Ma, Hejun Yang, Dabo Zhang, Qianyu Ni · 2018

The growing penetration of wind power in a power system brings great challenges to system operation flexibility. For generation planning in presence of high wind power penetration, it is essential to take the operation flexibility of the s…

A Method for Load Classification and Energy Scheduling Optimization to Improve Load Reliability Open

Yinze Ren, Hongbin Wu, Hejun Yang, Shihai Yang, Zhixin Li · 2018

With the large amount of distributed generation in use, the structure of the distribution system is increasingly complex. Therefore, it is necessary to establish a method to improve load reliability. Based on the reliability model of distr…

Reliability Assessment of Wind Farm Electrical System Based on a Probability Transfer Technique Open

Hejun Yang, Lei Wang, Yeyu Zhang, Xianjun Qi, Lei Wang , et al. · 2018

The electrical system of a wind farm has a significant influence on the wind farm reliability and electrical energy yield. The disconnect switch installed in an electrical system cannot only improve the operating flexibility, but also enha…

Wind speed model based on kernel density estimation and its application in reliability assessment of generating systems Open

Bo Hu, Yudun Li, Hejun Yang, He Wang · 2016

An accurate probability distribution model of wind speed is critical to the assessment of reliability contribution of wind energy to power systems. Most of current models are built using the parametric density estimation (PDE) methods, whi…

Reliability Evaluation of Power System Operations Considering Time-Varying Features of Components Open

Bo Hu, Ying Zheng, Hejun Yang, Yun Xia · 2015

The reliability of power system components can be affected by a numbers of factors such as the health level of components, external environment and operation environment of power systems. These factors also affect the electrical parameters…

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