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检索条件"任意字段=Power Engineering and Automation Conference"

共 55301 条记录，以下是621-630 订阅

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Research on the Precise Load Shedding considering the Active Participation of Load-Side Resources in Regulation 9

Research on the Precise Load Shedding considering the Active...

引用

9th Asia conference on power and Electrical engineering, ACPEE 2024

作者： Kuang, Chuan Bi, Yue Li, Yantao Lang, Jinqi He, Cong Zhang, Junfang Nanjing University of Science and Technology School of Automation Nanjing China Limited Institute of Economics and Technology State Grid Liaoning Electric Power Company Shenyang110015 China

ISBN: (纸本)9798350309638

With the increase of new energy grid-connected capacity, the control ability of the power system generation side decreases, and the probability of invisible faults and chain faults in the power grid increases. Aiming at the traditional load-shedding methods that do not take into account the regulating ability of adjustable load resources, this paper proposes a load-shedding strategy that considers the active participation of load-side resources in regulation, so that the load nodes actively participate in the regulation of the power grid, effectively reducing the actual load-shedding amount of the distribution network through their own regulation, and improving the security and accuracy of load-shedding actions. © 2024 IEEE.

关键词： Electric power distribution

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Topology Design of Distribution Transformers for Magnetic Coupled Energy Storage Devices 20

Topology Design of Distribution Transformers for Magnetic Co...

引用

20th International conference on AC and DC power Transmission 2024, ACDC 2024

作者： Yuan, Jiaxin Mo, Zuoquan Zhang, Wanting Gu, Lingyun Wu, Yan Bai, Xuefeng Hou, Jingwen State Key Laboratory of Power Grid Environmental Protection School of Electrical Engineering and Automation Wuhan University Wuhan430072 China School of Electrical and Automation Engineering Wuhan University Wuhan430072 China Beijing Key Laboratory of Distribution Transformer Energy-Saving Technology China Electric Power Research Institute Beijing100192 China

ISBN: (纸本)9781837242672

The development of new power systems containing large-scale energy storage devices is rapid, and it is of great significance to achieve efficient and reasonable utilization of energy storage. This article proposes to design a new topology of distribution transformer by magnetic coupling the energy storage device to a traditional dual winding transformer in the form of a third winding. In addition to its normal voltage transformation function, it can also balance peak shaving and valley filling functions to cope with short-term peak overload problems caused by impact loads such as electric vehicles. The advantage of this topology is that it has minimal structural changes to traditional transformers, lower investment costs than power electronic transformers, and magnetic coupling also achieves electrical isolation for easy maintenance and replacement of energy storage devices. This article first proposes and analyses the new topology of distribution transformers. Then, followed by matching control strategies for charging and discharging energy storage devices. Finally, based on MATLAB/Simulink, the circuit model is completed and its basic peak shaving and valley filling functions are verified through simulation. © The Institution of engineering & Technology 2024.

关键词： Distribution transformers

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Features of the Hybrid Generation Mode Control During Its Integration into the Electric Network of the Centralized Electric power System 3

Features of the Hybrid Generation Mode Control During Its In...

引用

3rd IEEE International conference on Problems of Informatics, Electronics and Radio engineering, PIERE 2024

作者： Marchenko, Andrey Armeev, Denis Murashkina, Inna Novosibirsk State Technical University Department of Automated Electric Power Systems Novosibirsk Russia

ISBN: (纸本)9798331516321

In connection with the modern development of electric power systems and the mass appearance of new technical elements in power system structure, the study of the influence of small generation on the modes of energy systems is relevant. The development of basic requirements and rules for controlling hybrid generation during its integration into the electric grid of a high-power electric power system is an urgent technical task. The article provides the concept of electronic and hybrid generation and briefly presents the methods of controlling electronic generation in distribution electric networks. For high-power hybrid generation as part of Minigrid, it is necessary to develop algorithms for the upper intelligent control loop that implements adaptive control (selection of laws and settings based on the identification of state classes of an external object and its operating parameters). Ensuring safe operation of small hybrid generation in the electric grid of an external electric power system with decentralized automatic mode and emergency control of Minigrid is possible only with special system automation. At the same time, Minigrid automation must monitor the conditions of self-balancing for stability, determine surpluses and needs for resources to ensure it, form orders and offers for resource receipt and provision. The article formulates the basic requirements and rules for implementation in hybrid generation control algorithms. © 2024 IEEE.

关键词： Hybrid power

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Flywheel Energy Storage Assisted Frequency Regulation in Hydrothermal power Plants 5

Flywheel Energy Storage Assisted Frequency Regulation in Hyd...

引用

5th International conference on Clean Energy and Electric power engineering, ICCEPE 2024

作者： Xing, Hao Wang, Juanjuan School of Automation and Electrical Engineering Dalian Jiaotong University Dalian116028 China Dalian Jiaotong University Dalian116028 China

ISBN: (纸本)9798350390315

As renewable energy forms a larger portion of the energy mix, the power system experiences more intricate frequency fluctuations. Flywheel energy storage technology, with its various frequency regulation advantages, can alleviate the frequency regulation pressure on power plants. The technical challenges associated with flywheel energy storage aiding in the frequency regulation of hydrothermal power plants present substantial research importance. This paper discusses the establishment of a two-area frequency regulation model for hydrothermal power units assisted by flywheel energy storage and the control methods of the flywheel energy storage system. A thorough examination reveals that under identical disturbance conditions, employing frequency regulation assisted by flywheel energy storage can diminish the fluctuations in power system frequency deviation and the extent of power exchange across tie lines. This approach also lessens the frequency regulation load on thermal power units, curtails the fluctuation in their output power, and consequently prolongs the operational lifespan of these units. © 2024 IEEE.

关键词： Flywheels

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THE APPLICATION STATUS AND KEY PROBLEMS OF WIRELESS power TRANSFER TECHNOLOGY IN DAILY LIFE

THE APPLICATION STATUS AND KEY PROBLEMS OF WIRELESS POWER TR...

引用

2024 International conference on Electrical engineering and Intelligent Control, EEIC 2024

作者： Xu, Mai College of Electronic Information and Automation Tianjin University of Science and Technology Tianjin300457 China

ISBN: (纸本)9781837242672

With the continuous development of science and technology, the traditional wired power transfer technology can no longer meet the needs of further daily use, so wireless power transfer technology has been developed accordingly in a way. This paper first introduced three major types of wireless power transfer technology, such as radiation, magnetic field coupling, and electric field coupling, and then the paper introduced their advantages, disadvantages, and some basic principles. The paper also analyzed the present application of wireless power transfer technology in the field of transportation and home furnishing. By using Multism and Matlab/Simulink, the paper also simulated the classical model of a magnetically coupled resonance wireless power transfer (MRPT) system, through which the paper summarized some key problems about efficiency and safety, which need to be solved urgently for further development in the future, and finally the paper came up with some new ideas for figuring the key problems. © The Institution of engineering & Technology 2024.

关键词： Inductive power transmission

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Electric power personnel safety monitoring method based on intelligent image processing 4

Electric power personnel safety monitoring method based on i...

引用

4th International conference on Testing Technology and automation engineering, TTAE 2024

作者： Yan, Nannan Feng, Jianfeng Xue, Xiangyang Su, Lei Chen, Yan State Grid Shanghai Electric Power Company Shanghai200122 China Institute of Brain and Intelligence Science and Technology School of Computer Science Fudan University Shanghai200433 China

ISBN: (数字)9781510686656

ISBN: (纸本)9781510686649

In this work, an intelligent monitoring method based on target detection and pose estimation is proposed for personal protective equipment monitoring and deep analysis of safety behavior. Different from previous image processing methods, this work uses object detection algorithm to calculate the types and positions of operators and security tools in image data. The pose estimation algorithm is introduced to calculate the key points of the human skeleton in the image data and identify the human pose, and then the relative position relationship of the key point coordinates is compared to analyze and judge the pose of the operator. The experimental results show that the intelligent monitoring method proposed in this work can improve the safety protection effect of operators to the greatest extent on the premise of ensuring the smooth completion of operations. © 2024 SPIE.

关键词： Safety Object detection Target detection Pose estimation Detection and tracking algorithms Data modeling Image processing Education and training Head Reconstruction algorithms

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Numerical simulation of ablative particle deposition on gas turbine blade based on gas-solid two-phase flow 6

Numerical simulation of ablative particle deposition on gas ...

引用

6th International conference on Information Science, Electrical, and automation engineering, ISEAE 2024

作者： Song, Yutao Zhu, Qunzhi College of Energy and Mechanical Engineering Shanghai University of Electric Power Shanghai China

ISBN: (纸本)9781510682924

The development of modern heavy-duty gas turbine technology has led to a gradual increase in combustion temperature. This increase has resulted in a higher incidence of gas turbine ablation failures. Ablation produces a large number of high-temperature particles that flow downstream with the gas and presents a safety hazard to gas turbine components and the stable operation of the gas turbine. This paper investigates the deposition behaviour of ablative particles of three different sizes on gas turbine blades through numerical simulation. The results indicate that the deposition rate is highest for 10μm particles on the stator blade pressure surface. The overall deposition rate on the dynamic blade pressure surface decreases, and the highest deposition rate is observed for 2.5μm particles. © 2024 SPIE.

关键词： Deposition rates

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Small Target Bird Nest Detection Method for power Transmission Lines Based on Improved YOLOv5 Algorithm with Wasserstein Distance Loss 2

Small Target Bird Nest Detection Method for Power Transmissi...

引用

2nd IEEE International conference on Electrical, automation and Computer engineering, ICEACE 2024

作者： Wang, Guangdong Wang, Suning Chen, Peng State Grid Shanghai Chongming Electric Power Company Shanghai China

ISBN: (纸本)9798350368208

The presence of bird nests on transmission and transformation lines poses a serious threat to the safe operation of the power system. Short circuits and trips caused by bird nests can lead to widespread power outages. This paper proposes an improved algorithm that combines YOLOV5 with attention mechanism and adds detection heads for small targets, for detecting bird nests on power transmission lines. By introducing attention mechanism, this algorithm can dynamically focus on important features in the bird's nest area, enhancing its ability to extract key regions in complex background images. While ensuring high detection accuracy, the attention mechanism further enhances the robustness and feature expression ability of the model in complex scenes. The experimental results show that the YOLOV5 algorithm, which utilizes the Wasserstein distance loss function, combines attention mechanism, and adds a small object detection head, not only significantly improves accuracy, but also outperforms traditional methods in real-time and detection efficiency, providing more effective technical support for automated inspection of transmission and transformation lines. © 2024 IEEE.

关键词： bird nest detection improved YOLOv5 algorithm power transmission lines Wasserstein distance loss

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Hybrid optimization of photovoltaic power prediction with PSO-CNN-GRU considering seasonal partitioning 4

Hybrid optimization of photovoltaic power prediction with PS...

引用

4th International conference on Mechanical, Electronics, and Electrical and automation Control, METMS 2024

作者： Cuan, Ying Bai, Chenbo Computer Science College Xi'an Shiyou University Shaanxi Xi'an710065 China

ISBN: (数字)9781510679887

ISBN: (纸本)9781510679870

With the increasing penetration of distributed photovoltaic power stations in the power system, a hybrid optimization method, PSO-CNN-GRU, is proposed to ensure the secure and stable operation of the power grid. Utilizing CNN feature extraction and GRU model modeling, this method enhances the accuracy and robustness of photovoltaic power prediction. The improved PSO algorithm exhibits global optimization capability, facilitating the faster and more accurate determination of optimal hyperparameters for CNN-GRU. Finally, simulations are conducted using data from the He 19-46 power station in the Changqing Oilfield. Experimental results indicate that the proposed method outperforms various other models in terms of predictive accuracy. The results validate the effectiveness and superiority of the proposed approach in enhancing predictive accuracy. This research is crucial for accurate photovoltaic power prediction, offering valuable insights for the sustainable development of power systems. © 2024 SPIE.

关键词： Global optimization

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Distributed scheduling for electric and heat supply system of friendly smart community 4

Distributed scheduling for electric and heat supply system o...

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4th International conference on Mechanical, Electronics, and Electrical and automation Control, METMS 2024

作者： Jia, Yujian Li, Li Sui, Quan Qin, Changlong Kan, Changtao State Grid Shandong Power Supply Company Shandong Province Jinan250001 China School of Electrical and Information Engineering Zhengzhou University Henan Province Zhengzhou450001 China

ISBN: (数字)9781510679887

ISBN: (纸本)9781510679870

This paper presents a distributed scheduling strategy for the electric and heat supply system of an intelligent community, aiming to balance the privacy of participants and the backup power requirements of the external grid. First, a distributed supply architecture that encourages collaboration between property owners and residents while safeguarding privacy is presented. Subsequently, the cooperative operation model of the system is established by developing the regulation capabilities of various loads and devices within the community and backup power constraints. Additionally, the model is solved by using the alternating direction method of multipliers (ADMM) algorithm. Finally, simulation results demonstrate that this strategy ensures privacy and cost reduction, and provides backup power to the external grid, offering a fresh perspective on the operation of community microgrids. © 2024 SPIE.

关键词： Smart city

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