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

共 54679 条记录，以下是61-70 订阅

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Development of an Automated System for Conducting Functional Tests of Relay Protection and automation Equipment 7

Development of an Automated System for Conducting Functional...

引用

7th International Scientific and Technical conference Relay Protection and automation, RPA 2024

作者： Voloshin, A.A. Maksimov, R.S. Romanov, D.A. Polygalin, I.S. Astakhov, E.S. Yakovlev, D.P. National Research University 'Moscow Power Engineering Institute' Department of Relay Protection and Automation of Power Systems Moscow Russia

This article discusses the structure and operation of an automated system for conducting functional tests of Relay Protection and automation (RPA) equipment, implemented in Python programming language, utilizing the T... 详细信息

ISBN: (纸本)9798331501105

关键词： Relay control systems

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Pinch Detection of power Window Using Disturbance Observer for Obstacles with Wide Range of Force Deflection Ratios 18

Pinch Detection of Power Window Using Disturbance Observer f...

引用

18th International conference on Control automation Robotics and Vision

作者： Tashiro, Tsutomu Osaka Sangyo Univ Dept Mech Engn Transportat 3-1-1 Nakagaito Daito Osaka Japan

ISBN: (数字)9798331518493

ISBN: (纸本)9798331518509;9798331518493

This paper proposes a pinch detection method for an automotive power window. Due to a power window system, we can easily rise and lower a window glass only by pressing a switch. However, if the window is rising while there is a finger or an arm between the window frame and the window glass, it might occur a pinching accident. In order to avoid injuries by the accident, an anti-pinch control that detects the pinching and lowers the window glass, is installed in a power window system. In this paper, an anti-pinch control that can detect pinching of the object with both small and large force deflection ratios is proposed. In order to achieve it, the pinch state index is calculated from the motor angular speed and detects pinching when it exceeds the threshold. The main process of calculating the index is realized by a disturbance observer and a non-linear gain. When an object with small force deflection ratio is pinched, the index moves like a pinch force, and when an object with large force deflection ratio is pinched, the index increases faster than a pinch force by the non-linear gain. Performance and effectiveness of the anti-pinch control is evaluated by the experimental data measured on a power window test

关键词： power measurement Force Glass Switches Disturbance observers Windows Indexes Robots Automotive engineering Accidents

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Performance evaluation of minimum backflow power and current stress optimization strategy for dual-active-bridge converter 6

Performance evaluation of minimum backflow power and current...

引用

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

作者： Zheng, Chengshi Li, Jian Zheng, Gaoyang Jia, Pengju Wang, Panbao State Grid Henan Electric Power Company Jiyuan Power Supply Company Jiyuan459000 China School of Electrical Engineering and Automation Harbin Institute of Technology Harbin150001 China

ISBN: (纸本)9781510682924

This article discusses the optimization evaluation of dual active bridge (DAB) converter under current stress optimization and minimum backflow power scheme. A large-signal model with the transferred power as the control quantity is built, and a closed-loop control method based on direct power control is proposed to realize the precise modulation of the output voltage. Based on this, the current stress optimization scheme and minimum backflow power scheme are designed by modulating the inner phase shift ratio and outer phase shift ratio. The computational results show that current stress minimization performs better compared to the minimum backflow power scheme. © 2024 SPIE.

关键词： Surface plasmons Bridges Double positive medium Mathematical optimization Phase shifts Mathematical modeling Capacitors Switching Inductance engineering

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An autonomous optimization dispatch for multi-energy microgrid considering hydrogen production 7

An autonomous optimization dispatch for multi-energy microgr...

引用

7th International conference on automation Electronics and Electrical engineering

作者： Zhuang Ying Pei Wei Zhang Guoju Liu Ruihuang Chinese Acad Sci Inst Elect Engn Beijing Peoples R China Power Co Ltd Res Inst State Grid Jiangsu Elect Nanjing Peoples R China

ISBN: (数字)9798350377033

ISBN: (纸本)9798350377040;9798350377033

The phenomenon of wind and solar curtailment is quite severe in microgrid with high renewable generation connection. Constructing renewable energy-hydrogen combined system can be an effectively way to reduce the wind and solar waste and to meet the growing requirement of hydrogen energy. However, renewable energy-hydrogen combined microgrid faces problem as low electric grid self-service capability caused by high operation cost and low capacity of the traditional battery energy storage system. Therefore, a hydrogen production based multi-source multi-energy microgrid has been proposed in this paper. The system includes PV cells, wind turbines, heat boiler, electrical energy storage system, thermal energy storage system, hydrogen electrolyzer and hydrogen fuel cell and works at off-grid mode. An autonomous optimization dispatch system is then developed to minimize operating costs and provide optimized output power for each unit, ensuring stable operation in island mode. The simulation result proves that the system can take fully usage of the renewable energy and possess good economic efficiency by hydrogen trading.

关键词： hydrogen production heat-power combined system autonomous optimization model hydrogen fuel cell energy dispatching

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Collaboration and Control Strategy for Dual Traction Station Flexible AC Traction power System during Catenary Faults 7

Collaboration and Control Strategy for Dual Traction Station...

引用

7th International conference on automation Electronics and Electrical engineering

作者： Shen, Hua Guo, Xu Shao, Jiachuan Northwestern Polytech Univ Sch Cybersecur Xian Peoples R China Tsinghua Univ Sch Elect Engn Beijing Peoples R China China Railway Elect Ind Co Ltd Int Business Dept Baoding Peoples R China

ISBN: (纸本)9798350377040;9798350377033

In the flexible AC traction power supply system (FTPSS), a certain short-circuit current is necessary for fault detection following a catenary fault. However, the static power converters (SPCs) have limited current overload capacity. To enable fault detection and rapid system recovery, SPCs must switch from voltage-frequency control (VFC) to fault current control (FCC). This mode switching process can cause issues such as transient voltage and synchronization problems during the soft start of SPCs, leading to abnormal mode transitions. To address these challenges, this paper proposes a communication-based collaboration and control strategy to suppress transient voltage and achieve synchronous soft start. Firstly, the paper identifies the transient voltage and synchronization issues under the continuous operation strategy of dual traction station FTPSS. Subsequently, a collaborative control strategy is introduced. Finally, simulation modeling is conducted on the PSCAD/EMTDC platform to validate the proposed strategy. The simulation results demonstrate that the strategy effectively suppresses transient voltage and achieves synchronous soft start, ensuring correct mode switching.

关键词： flexible AC traction power supply system catenary fault collaborative control transient voltage suppression

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Overview of Ship Shore power automation Docking Methods

Overview of Ship Shore Power Automation Docking Methods

引用

International conference on Wireless power Transfer (ICWPT)

作者： Yu, Chunlai Ding, Haolun Zhu, Hao Zhu, Jinda Liu, Yancheng Liu, Siyuan Zhang, Qinjin Guo, Haohao Dalian Maritime Univ Sch Marine Engn Dalian 116026 Peoples R China CSSC Syst Engn Res Inst Beijing 100094 Peoples R China Nari Technol Co Ltd Nanjing 211000 Peoples R China

ISBN: (纸本)9789819708758;9789819708734;9789819708727

At present, "lowcarbon" is the trend of future development of the shipping industry, shore power technology is a kind of clean and efficient technology to provide power to ships from the shore. The automated docking of shore power is of great significance for improving the efficiency of shore power and eliminating the hidden danger of harbor security. To conduct an in-depth study, this paper focuses on the existing shore power technology, firstly analyzes the demand for automated docking of ship shore power, summarizes the current status of key technologies required to realize the automatic docking scheme for ships, then introduces the current automated docking schemes at home and abroad, and finally summarizes the characteristics of the current docking scheme for ship shore power and the direction of future development.

关键词： Ship Shore power automation Docking Ship Berthing

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Design of voiceprint recognition algorithm based on triplet-loss-optimized deep learning 4

Design of voiceprint recognition algorithm based on triplet-...

引用

4th International conference on Mechanical engineering, Intelligent Manufacturing, and automation Technology, MEMAT 2023

作者： Xu, Zhendong Gao, Feng Jia, Yuebo Gu, Ziyu Liu, Yande Jun, Xu State Grid Jilin Electric Power Co. Ltd. Liaoyuan Power Supply Company Liaoyuan136299 China School of Automation Engineering Northeast Electric Power University Jilin132012 China

ISBN: (纸本)9781510674820

Voiceprint recognition is a technology that verifies or identifies individuals by analysing their speech signals. Traditional voiceprint recognition methods have issues like inaccurate feature extraction and weak robustness. To enhance the performance of voiceprint recognition, this paper adopts the triplet loss and its optimization. By employing the optimized triplet loss, we can effectively improve the accuracy and robustness of voiceprint recognition. © 2024 SPIE.

关键词： Deep learning

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Feature Extraction for Post-Disturbance Frequency Prediction Based on Hierarchical Agglomerative Clustering 7

Feature Extraction for Post-Disturbance Frequency Prediction...

引用

7th International conference on automation Electronics and Electrical engineering

作者： Zhang, Jie Shi, Hongji Cao, Yongji Li, Changgang Yu, Sen Yi, Yanlin Li, Wenbo Gong, Yi Liu, Yang State Grid Shandong Elect Power Co Jinan Peoples R China Shandong Univ Acad Intelligent Innovat Jinan Peoples R China Shandong Univ Sch Elect Engn Jinan Peoples R China Shandong Univ Sch Integrated Circuits Jinan Peoples R China Shandong Elect Power Engn Consulting Inst Corp Lt Jinan Peoples R China

ISBN: (纸本)9798350377040;9798350377033

The prediction of post-disturbance frequency dynamic response plays a significant role in decision making for stability control. This paper proposes a feature extraction scheme for post-disturbance frequency prediction based on hierarchical agglomerative clustering (HAC). The post-disturbance dynamic response process of power system frequency is analyzed, on which the basic input features for prediction are determined. Then, the correlation degrees of each two basic features are calculated to establish a similarity matrix. Moreover, the HAC method is used to extract the representative features. The HAC is conducted with exhaustive centroid-based strategy, and the Elbow's method is used to determine the number of clusters. A case study is presented to validate the feasibility and effectiveness of the proposed scheme.

关键词： frequency dynamic response characteristic extraction hierarchical agglomerative clustering similarity metric

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MCSOA: A Novel High-Reliable Wireless Sensor Networks Routing Optimization Method for power Internet of Things 9

MCSOA: A Novel High-Reliable Wireless Sensor Networks Routin...

引用

9th International conference on automation, Control and Robotics engineering (CACRE)

作者： Wei, Jingyi Luo, Tao Jia, Dingyi Zhu, Yuanjiao Ma, Pengwei Zhou, Jie Shihezi Univ Coll Informat Sci & Technol Shihezi Peoples R China

ISBN: (纸本)9798350350319;9798350350302

In recent years, as the power Internet of Things continues to advance and improve, the routing requires efficient and reliable optimization methods to ensure stable operation. However, sensor nodes in Wireless Sensor Networks for power Internet of Things have limited energy and lifespan, making the search for an efficient routing optimization method a critical issue. This paper innovatively proposes a novel high-reliable Wireless Sensor Networks routing optimization method for power Internet of Things-the Multi-Objective Chaotic Seagull Optimization Algorithm (MCSOA). MCSOA integrates chaotic optimization strategies with the Seagull Optimization Algorithm, enable to escape local optima and improving its global search capability. Additionally, it incorporates multi-objective functions to address various key factors in PSWSN routing, including minimizing transmission loss, balancing load distribution, and enhancing system reliability. To evaluate the effectiveness of the optimization method, extensive new experiments were conducted, accurately reflecting real-world power grid operation scenarios. The experimental findings indicate that MCSOA significantly outperforms traditional algorithms like Genetic Algorithm and Particle Swarm Optimization in terms of efficiency. Specifically, MCSOA cuts down energy use by a minimum of 16.1% and prolongs the lifespan of the PSWSN by at least 15.6%.

关键词： Wireless Sensor Networks power Internet of Things Routing optimization Seagull Optimization algorithm

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Research on Feeder Zero Sequence Overcurrent Protection Adaptive to Network Topology Changes 16

Research on Feeder Zero Sequence Overcurrent Protection Adap...

引用

16th IEEE PES Asia-Pacific power and Energy engineering conference, APPEEC 2024

作者： Liang, Zhenfeng Liu, Yuxin Zhao, Xiaoyan Chen, Xu Song, Guobing School of Electrical Engineering Xi'an University of Technology Xi'an China Zhuhai Power Supply Bureau Guangdong Power Grid Co. Zhuhai China

ISBN: (数字)9798350386127

ISBN: (纸本)9798350386127

The wiring in A+ and A power supply areas is complex and the operation modes are diverse. The neutral point is mostly grounded by low resistance. Based on distribution automation, the principle of feeder zero-sequence overcurrent protection based on adaptive network topology change is proposed. The influence of distribution network topology change on feeder grounding fault zero-sequence current is analyzed. And the adaptability evaluation method of feeder zero-sequence overcurrent protection is proposed. For the distribution network using local feeder automation, the feeder zero-sequence overcurrent protection is circumvented by prohibiting certain operation modes;for the distribution network with feeder automation with communication function, the network topology is judged by using the information collected by distribution automation, and the zero-sequence overcurrent protection setting is modified online after the network topology changes to avoid the feeder zero-sequence overcurrent protection from malfunctioning. The distribution network model is established using PSCAD, and a large number of fault simulations are performed. The results show that when the the distribution network topology changes, the proposed adaptive zero-sequence overcurrent protection will not malfunction. © 2024 IEEE.

关键词： Network topology

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