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3rd International Conference on Power Systems and Electrical technology, PSET 2024

作者： Li, Lingfang Yue, Xiaoyu He, Xuehao Yang, Jiaquan Pan, Ruxiang Liao, Siyang Yunnan Power Grid Corporation Ltd Power Grid Planning and Construction Center Yunnan China Wuhan University Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network School of Electrical Engineering and Automation Wuhan China Electric Power Research Institute Yunnan Power Grid Corporation Ltd Kunming China

ISBN: (纸本)9798350353204

Insufficient peak regulation capacity in the power system limits wind power integration. Energy-intensive industrial loads and pumped storage stations offer substantial capacity and rapid adjustment, yet their potential remains underutilized. This study proposes a coordinated optimization method considering both factors. It analyzes the flexible regulation of energy-intensive loads, establishes their regulation model, and similarly for pumped storage, considering its flexibility margin. Additionally, it creates a multi-resource coordination optimization model, factoring in the economic aspects of thermal power deep peak shaving. Tested on a typical system, the proposed model can significantly reduce the wind curtailment rate of the system, greatly reduce the total operating cost of the system, and improve the economy of thermal power. Meanwhile, the utilization rate of the pumped storage unit is improved, the potential of energy-intensive load regulation is excavated, and the peak load regulation structure of the system is reasonably optimized. © 2024 IEEE.

关键词： Wind power integration

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Grid Synchronization Control for Grid-connected Voltage Source Converters Based on Voltage Dynamics of dc-link Capacitor

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Journal of Modern Power Systems and Clean Energy 2024年第5期12卷 1678-1689页

作者： Chunyi Han Lei Shang Shi Su Xuzhu Dong Bo Wang Hao Bai Wei Li Hubei Engineering and Technology Research Center for AC/DC Intelligent Distri bution Network School of Electrical Engineering and AutomationWuhan Uni versityWuhan 430072China the Electric Power Research Institute Yunnan Power Gird Co.Ltd.Kunming 650217China China Southern Power Grid Electric Power Research Institute China Southern Power Grid Co.Ltd.Guangzhou 510000China

This paper proposes a grid synchronization control strategy for the grid-connected voltage source converters(VSCs)based on the voltage dynamics of the dc-link capacitor in the *** voltage dynamics of the dc-link capacitor are used to regulate the frequency and phase angle of the inner potential of the VSC,synchronizing the VSC with ***,in the proposed strategy,the active power regulation and grid synchronization of the VSC are combined,which are separated in the traditional control *** can avoid the instability of the VSC in a weak grid with a low short circuit ratio(SCR),aroused by the dynamic interaction between the separated control loops in traditional control ***,the energy stored in the dc-link capacitor is directly coupled with the grid via the inner potential of the VSC,and the inertia characteristic is naturally featured in the inner potential by the proposed *** the increase of the capacitance,the natural inertial response of the VSC is helpful to improve the grid frequency ***,simulation results are presented to validate the correctness and effectiveness of the proposed strategy in the enhancement of the grid frequency and voltage dynamic support capability.

关键词： dc-link voltage dynamics grid synchronization control grid frequency and voltage dynamic support small-signal stability weak grid

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research on supply chain intelligent bid evaluation management system based on AHP-TOPSIS 24

Research on supply chain intelligent bid evaluation manageme...

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5th International Conference on Computer Science and Management technology, ICCSMT 2024

作者： Yang, Zheng Jin, Hao Chen, Shuai Sun, Jinzhou Tang, Fei Chen, Mo E-commerce Co. Ltd. Fujian Xiamen China Wuhan Hangke Logistics Co.Ltd. Hubei Wuhan China School of Information Management Wuhan University Hubei Wuhan China School of Electrical and Automation Wuhan University Hubei Wuhan China Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network Hubei Wuhan China College Students Engineering Training and Innovation Practice Center Hubei Wuhan China

ISBN: (纸本)9798400709999

The intelligent transformation of the bid evaluation process in supply chains has become a prominent area of *** paper analyzes the functional framework of the intelligent bid evaluation management system for supply chains and ranks the importance of functions involved in the evaluation ***, the paper examines the challenges faced by existing supply chain platforms during their intelligent *** then proposes an evaluation system for the functional importance of bid evaluation, utilizing the Analytic Hierarchy Process (AHP) and TOPSIS *** converting subjective judgments into objective data, this study comprehensively analyzes three key factors in the bid evaluation process: bid integrity, risk level, and evaluation *** weights are determined based on expert assessments, leading to the optimization and ranking of intelligent bid evaluation *** results reveal that tender integrity and supplier risk are critical in the evaluation process, with functions such as core term extraction, integrity detection, and format error identification playing essential *** research not only offers scientific decision support for the development of intelligent bid evaluation management systems in the supply chain but also provides a theoretical foundation for advancing supply chain intelligence. © 2024 Copyright held by the owner/author(s). Publication rights licensed to acM.

关键词： AHP

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Calculation of Distributed Photovoltaic Hosting Capacity in distribution network 4th

Calculation of Distributed Photovoltaic Hosting Capacity in ...

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4th International Symposium on Insulation and Discharge Computation for Power Equipment, IdcOMPU 2023

作者： Yang, Junwen Shang, Lei Dong, Xuzhu Xia, Huaimin Zeng, Haiyan Duan, Qing Zhao, Jie Center for AC/DC Intelligent Distribution Network Hubei Engineering and Technology Research Wuhan430000 China School of Electrical and Automation Wuhan University Wuhan430072 China Wuhan Power Supply Company Hubei Power Supply Company State Grid Wuhan430024 China China Electric Power Research Institute Beijing100192 China

ISBN: (纸本)9789819974122

If the scale of distributed photovoltaic exceeds the hosting capacity of the distribution network, the safe and stable operation of the distribution network will be seriously affected. To solve this problem, DIgSILENT/PowerFactory is used to calculate the hosting capacity of distributed photovoltaic in the distribution network. Firstly, a simulation model of low-voltage distribution network was established, and the influence mechanism and simulation analysis were used to explain the influence of distributed photovoltaic capacity and location on voltage, current, losses and harmonics. On this basis, the corresponding constraint conditions are constructed, and the hosting capacity of distributed photovoltaic in the distribution network is calculated to obtain the photovoltaic hosting capacity of each nodes, as well as the limiting factors and limiting elements. © Beijing Paike Culture Commu. Co., Ltd 2024.

关键词： Electric power distribution

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Simulation analysis of primary frequency modulation parameters optimization of PWR nuclear power unit 4

Simulation analysis of primary frequency modulation paramete...

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4th International Conference on Smart Grid and Energy Internet, SGEI 2024

作者： Zhao, Jie Zhou, Pingchao Sun, Wentao Wu, Haocheng Wen, Libin Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network School of Electrical Engineering and Automation Wuhan University Wuhan430072 China State Grid Jiangsu Economic Research Institute Nanjing210008 China Electric Power Research Institute of Guangxi Power Grid Co. Ltd. Nanning530023 China

ISBN: (纸本)9798350368314

nuclear power plant(NPP) model for power system simulation is established, which includes reactor core system(RCS) and thermodynamic system model, steam turbine model and speed governing system model. Based on the NPP dynamic model, the response characteristics of nuclear power unit core system under different primary frequency modulation parameters are analyzed with difference frequency regulation dead band, limit value and difference coefficients parameters. Based on the transient energy function, the influence of frequency regulation parameters, such as dead band, amplitude limit and the difference coefficient, on the stability of the power grid is analyzed quantitatively. Considering the requirements of nuclear power plant safety and grid stability, an optimization scheme of primary frequency regulation parameters of nuclear power unit is proposed. ©2024 IEEE.

关键词： Pressurized water reactors

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Instructional Design and Practice of Specialized Courses Based on Knowledge Graphs—Using the Fundamentals of Electrical engineering as a Case Study

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数字教育前沿（英文） 2025年第1期2卷 133-144页

作者： Fei Tang Mo Chen Jian Xu Chao Qiu Yuan Wang School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072China Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network Wuhan 430072China Undergraduate College of Wuhan University Wuhan UniversityWuhan 430072China School of Electrical Engineering and Automation Wuhan UniversityWuhan 430072China Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network Wuhan 430072China Undergraduate College of Wuhan University Wuhan UniversityWuhan 430072China

In the current era of rapid development of AI and Big Data,utilizing these emerging technologies to empower learning in specialized higher education courses in the electrical engineering discipline has become a hot topic among *** paper constructs a ternary graph comprising knowledge,issue,and competency layers,based on knowledge *** knowledge graphs with the instructional design of flipped classrooms and double closed-loop teaching designs,students' learning enthusiasm and efficiency can be fully *** the practical teaching of fundamentals of electrical engineering course,students' learning abilities,innovative thinking skills,and interpersonal coordination competencies significantly improved.

关键词： electrical engineering instructional design knowledge graphs

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research on intelligent accounting Method for Power Transmission Channel Clearing engineering Based on Binocular Visual Perception

Research on Intelligent Accounting Method for Power Transmis...

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IEEE Conference on Energy Internet and Energy System Integration (EI2)

作者： Peng Luo Bo Wang Jiaxin Zhang Jiahao Wang Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network Wuhan University China School of Electrical and Automation Wuhan University Wuhan China

ISBN: (数字)9798331523527

ISBN: (纸本)9798331523534

In order to solve the problem of complex engineering quantity accounting process and low standardization level in the clearance work of transmission channels, this paper proposes an intelligent accounting method for transmission channel clearance engineering based on binocular visual perception. Firstly, the RGB image and depth image features are extracted separately through convolutional networks, and the RGB image features and depth features are fused using cross modal feature fusion module(CMF) and compact pyramid module (CPM) to achieve automatic recognition and contour extraction of tree stumps on the job site; Subsequently, a tree diameter measurement module based on 3D information reconstruction was constructed to achieve automatic calculation of tree diameter. Experiments have shown that the mAP for identifying tree stumps in transmission channel clearing sites reaches 0.972, and the relative error of tree diameter measurement is less than 5%, verifying the effectiveness of the method proposed in this paper and providing technical support for intelligent engineering quantity accounting in transmission channel clearing sites.

关键词： Three-dimensional displays Measurement uncertainty Energy measurement Power transmission System integration Standardization Feature extraction Cameras Data mining Visual perception

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Multi-objective optimal scheduling of distribution networks with load aggregator involvement

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Energy Reports 2025年 14卷 486-499页

作者： Lin Zheng Jianfeng Zheng Haoyang Tang Zhilu Liu Tiange Li Jinpei Lu Zhijian Hu Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network School of Electrical Engineering and Automation Wuhan University Wuhan Hubei China Foshan Power Supply Bureau Guangdong Power Grid Co. Ltd. Foshan Guangdong China

The widespread distribution and large number of user-side resources pose challenges for direct dispatch by the power grid. To fully leverage the regulation potential of demand-side resources, this paper proposes a multi-objective scheduling model for distribution networks with load aggregator involvement, aiming to minimize economic cost, reduce network losses, and increase renewable energy utilization. Aggregated models of air conditioners and electric vehicles are developed based on their operational characteristics and user demand. Fuzzy chance constraints are introduced to address the uncertainty in demand response participation. The model is solved using the AUGMECON-R method to generate the Pareto front, and the TOPSIS approach with comprehensive weighting is used to identify the optimal scheduling scheme. The simulation results demonstrate that the proposed method cuts economic cost by $159, reduces network losses by 0.201 MW, and increases the proportion of renewable energy supply by 1.5 percentage points. The results indicate that the model improves the operational performance of the distribution network operation by fully utilizing the flexibility of user-side resources.

关键词： Load aggregator Multi-objective model AUGMECON-R TOPSIS

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A Study on Outage Analysis of distribution networks with DG Based on Knowledge Graph and Optimized Greedy Algorithm 11

A Study on Outage Analysis of Distribution Networks with DG ...

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11th China International Conference on Electricity distribution, CICED 2024

作者： Lin, Jun Zhang, Lianmei Zhao, Yifan Guo, Hongjian Tang, Hankan Wei, Jiajia Zhejiang Wuyi Electric Installation Engineering Co.Ltd. Zhejiang Wuyi China Zhejiang Wuyi Power Supply Company State Grid Corporation of China Zhejiang Wuyi China Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution networks China School of Electrical Engineering and Automation Wuhan University Hubei Wuhan China

ISBN: (纸本)9798350368345

With the increasing scale of distribution networks, the grid-connected operation of multiple energy sources and the uneven quality of energy sources make the structure of distribution networks complex and fragile, increasing the possibility of sudden power outages. Therefore, it is necessary to analyze distribution network outages to improve power supply reliability in distribution networks. Firstly, based on Knowledge Graph technology, which is good at analyzing the relationships between entities, this paper adopts Knowledge Graph technology to analyze the topological relationships of entities in the distribution networks. Secondly, the article describes the types of outage events in distribution networks and proposes the evaluation indexes for evaluating the impact of outage events. Finally, analogous to the backpack problem, the article constructs a distribution grid outage model considering DG and proposes an Optimized Greedy Algorithm for solving distribution grid outage analysis considering DG. Through the PG&E69 simulation example, the article verifies the analysis of the topological connectivity relationship of entities based on the Knowledge Graph and the Optimized Greedy Algorithm to be practical and real-time in the outage analysis considering DG. © 2024 IEEE.

关键词： Power distribution networks

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Optimization of Direct Load Control Demand Response for Industrial Micro-Grid Using Smart Meter

Optimization of Direct Load Control Demand Response for Indu...

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Power and Electrical engineering (acPEE), 5th Asia Conference on

作者： Ahmed Osman. M. Bahageel Ghamgeen Izat Rashed Hashim Ali I. Gony Ansumana Badjan Husam I. Shaheen Hubei Engineering and Technology Research Center for AC/DC Intelligent Distribution Network School of Electrical Engineering and Automation Wuhan University Wuhan Hubei Province China Changsha University Changsha Huhan China

ISBN: (数字)9798350309638

ISBN: (纸本)9798350309645

The industrial sector is one of the largest electricity consumers, and it is essential to optimize energy consumption to reduce costs and enhance energy efficiency. Demand response (DR) is a strategy that aims to manage and reduce peak electricity demand by shifting energy consumption to off-peak hours or reducing energy consumption during Peak demand periods. Smart meters are a promising technology for implementing DR programs in the industrial microgrid, as they enable real-time monitoring and control of energy usage, providing customers with accurate information about their energy consumption patterns. This study presents an integrated approach to enhance the efficiency of direct load control demand response (DLC-DR) in industrial settings by leveraging smartmeter technology. The primary objective is to concurrently lower energy consumption and associated expenses while reinforcing grid stability. The optimization is formulated as Mixed Integer Linear Programming (MILP). The case study Simulated in the plastic industry shows that Direct load control Demand response in an industrial microgrid with Renewable Energy Resources (RES) and a battery energy storage system (BESS) can effectively utilize the reliability and flexibility of the power grid by reducing peak demand as well as the electricity cost.

关键词： Energy consumption Costs Electricity Microgrids Demand response Smart meters Plastics industry

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