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

共 54875 条记录，以下是371-380 订阅

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Fatigue Analysis of Jumper Cables in Floating Body 21

Fatigue Analysis of Jumper Cables in Floating Body

引用

21st IEEE International conference on Mechatronics and automation (IEEE ICMA)

作者： Zhang, Hao Fu, Qiang Wang, Chunjie Tianjin Univ Technol Sch Elect Engn & Automat Tianjin 300384 Peoples R China Tianjin Univ Technol Tianjin Key Lab New Energy Power Convers Transmis Tianjin Peoples R China

ISBN: (纸本)9798350388084;9798350388077

Cable fatigue is a common problem in power transmission and communication systems. The cables between floating structures are affected by harsh marine environments, resulting in frequent bending, stretching, and vibration of the cables, which seriously affects the fatigue level of the cables. Fatigue leads to a decrease in the mechanical strength of cables, increasing the risk of fracture and damage. This article proposes an innovative comprehensive fatigue assessment method to address the difficulty of accurately predicting the fatigue life of jumper cables using traditional methods. This method is based on the catenary theory and Coffin-Manson theory, combined with finite element analysis and material mechanics simulation, to more accurately predict the fatigue life of cables, The accuracy and effectiveness of the method were verified through cable simulation testing under different working conditions. The influence of changing cable parameters on cable fatigue life was observed through simulation testing. The results show that this method can improve the accuracy of prediction, provide strong evidence for cable design, reduce the maintenance and replacement costs of cables, and is of great significance for improving the reliability of offshore cable systems, providing useful references for the development and application of marine engineering.

关键词： cables between floating bodies Finite element analysis Fatigue simulation

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Fault diagnosis system for hydropower equipment based on expert knowledge base 4

Fault diagnosis system for hydropower equipment based on exp...

引用

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

作者： Hu, Dechang Sun, Yongxin Li, Jun Dong, Yanchun Tian, Hengshuang Yun, Hao China Yangtze Power Co. Ltd. Yichang443133 China Harbin Electric Machinery Company Limited Harbin150040 China Harbin Research Institute of Large Electric Machinery Company Limited Harbin150040 China

ISBN: (数字)9781510686656

ISBN: (纸本)9781510686649

In order to supply the demands of modern hydropower stations, a fault diagnosis system based on SOA Architecture was built. This system adopts Depth First Search Strategy with Pruning Processing in the matching process between fault and feature, which can improve the efficiency of inference engine. The inference is achieved by completely matching or partially matching with question. By storing the data of knowledge base with Neo4j, this system can manage expert knowledge base effectively. Based on " Confidence level", this system implement dynamic learning with expert assisting. Through this system, hydropower stations can prevent accidents and improve the maintenance mode, reduce the cost of operation, and improve the efficiency of machine. © 2024 SPIE.

关键词： Hydroelectric power plants

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Design and Application of Control Strategy for the "Single Forced Draft Fan, Double Induced Draft Fan, and Double Air Preheater"Configuration of Air and Flue Gas System in Thermal power Units 2

Design and Application of Control Strategy for the "Single F...

引用

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

作者： Xing, Zhiwei Yang, Zhenyong Gao, Mingshuai Liu, Lei North China Electric Power Research Institute Co. Ltd Beijing China

ISBN: (纸本)9798350368208

A sequential start control scheme for the air and flue gas system was designed for the configuration of "Single Forced Draft Fan, Double Induced Draft Fan, and Double Air Preheater ", which improved the control level of the entire air and flue gas system;Based on the configuration characteristics of the air and flue gas system, a targeted control scheme for induced draft fan RB and air preheater RB has been designed to ensure rapid and stable load reduction of the unit after a single side auxiliary machine failure;Protection and control logic of the fan was designed, which can ensure the safety and reliability of the air and flue gas system. The complete control strategy for the air and flue gas system proposed in this article has been applied in ultra supercritical 660MW thermal power units. It has been verified to have good applicability for the air and flue gas system with a configuration of "Single Forced Draft Fan, Double Induced Draft Fan, and Double Air Preheater". The entire system has good automation control level and safety reliability. © 2024 IEEE.

关键词： Air preheaters

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Research on primary and secondary collaborative planning method of distribution network for self-balancing and self-optimizing 20

Research on primary and secondary collaborative planning met...

引用

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

作者： Cai, Yupeng Zhou, Weipeng Zhao, Hongyan Yu, Tongwei Han, Zhentao Song, Zhuoran Chu, Tianfeng Kang, Xiaofan State Grid Liaoning Electric Power Co. Ltd. Electric Power Science Research Institute Shenyang China School of Electrical and Control Engineering North China University of Techonlogy Beijing China State Grid Liaoning Electric Power Co. Ltd. Shenyang China

ISBN: (纸本)9781837242672

The current distribution network planning and self-balancing and self-optimizing assessment are disconnected, resulting in the inability to directly feed back the self-balancing and self-optimizing assessment to the adjustment strategy of the primary and secondary system planning. To address the above issues, first, an embedded self-balancing constraints primary system planning method is proposed. On this basis, further consideration is given to the sensitivity of distribution automation equipment on the self-balancing and self-optimizing of the system, optimizing the configuration of circuit breakers and distribution automation equipment. Finally, the effectiveness of the proposed planning method is verified based on actual engineering cases. © The Institution of engineering & Technology 2024.

关键词： ACTIVE DISTRIBUTION NETWORK PLANNING PRIMARY-SECONDARY COORDINATION RELIABILITY

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ENABLING EPC 4.0 USING INTEGRATED power and PROCESS STRATEGIES

ENABLING EPC 4.0 USING INTEGRATED POWER and PROCESS STRATEGI...

引用

IEEE IAS Petroleum and Chemical Industry Technical conference (PCIC)

作者： Jalal, Shebin Shah, Pratik Cherukuri, Ganesh Schneider Elect Houston TX 77001 USA Fluor Corp Houston TX 77478 USA Air Prod Inc Proc Controls T6C 4N7 Allentown PA USA

ISBN: (纸本)9798350304534

This document provides an overview of the enduring benefits of an innovative approach for integrating automation and electrical control systems in capital projects, riding on the proven reliability of evolving technology. Integrating automation and electrical control systems is vital for project optimization, system simplicity, and operational efficiency in electro-intensive industrial plants. The value of integrated systems through the plant's life cycle is proven. However, the approach struggles to gain wider acceptance due to organizational issues, differing standards and technology, and ill-defined digital transformation strategies. Integrated power and process designs provide significant capital expenditure savings opportunities and positively impact an electro-intensive plant's operational performance and reliability. This paper discusses the challenges and advantages of power and process control integration and solutions strategies to help engineering, procurement, and construction companies as well as end-users.

关键词： EPC 4.0 Lifecycle Digital Twin Distributed Control System (DCS) power Management System (PMS) Integrated power and Process Control Integrated engineering

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Classification of typical partial discharge defects in GIS based on agglomerative hierarchical clustering 6

Classification of typical partial discharge defects in GIS b...

引用

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

作者： Chen, Guiping Cheng, Xiangmao Yang, Gang Liu, Yaozhang Hou, Yabing Xu, Haochun Chaozhou Power Supply Bureau Guangdong Power Grid Co. Ltd. Guangdong Chaozhou521000 China

ISBN: (纸本)9781510682924

As the key equipment in the power system, the safe operation of gas-insulated metal-enclosed switchgear (GIS) is important. Timely and correct fault recognition of insulation defects in GIS is of great importance for early fault warning. In this paper, partial discharge of 5 typical insulation faults in GIS equipment is experimentally simulated. By calculating statistical feature characteristics, an efficient classification method based on agglomerative hierarchical clustering is proposed. The results show that the calculation of the characteristics of discharge samples is simple, the physical meaning is intuitively clear, and the clustering method is able to distinguish different samples based on the differences in characteristics without prior knowledge. The statistical feature characteristics can accurately characterize the features of different typical defects in GIS and can distinguish different defects through agglomerative hierarchical clustering analysis. The method can provide a certain reference for the diagnosis and early warning of insulation faults in GIS equipment. © 2024 SPIE.

关键词： UHF devices

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Sensitivity analysis and prevention of resonance response of centrifugal pump structure 4

Sensitivity analysis and prevention of resonance response of...

引用

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

作者： Luo, Xiaohui Song, Li Yang, Jie Zhao, Liang China Nuclear Power Engineering Co. Ltd. Guangdong Prov. Shenzhen518124 China Suzhou Nuclear Power Research Institute Co. Ltd. Guangdong Prov. Shenzhen518120 China

ISBN: (数字)9781510679887

ISBN: (纸本)9781510679870

In order to study the vibration characteristics of centrifugal pumps in nuclear power plants when structural resonance occurs, the quantitative relationship between vibration amplification factor of resonance point, system quality factor and natural frequency offset is obtained by analyzing the mechanical model of pumps during operation. Based on the relationship between the static deformation of the system structure and the supporting structure of the centrifugal pump, the research method of the contribution of the natural frequency offset to the vibration reduction of the centrifugal pump is analyzed. Combined with the vibration exceeding the standard caused by the resonance of a centrifugal pump in plant, the sensitivity factor of the natural frequency to the resonance prevention is summarized. The relevant conclusions can be used in the prevention and control analysis of the pump resonance in engineering practice validity, and provide an important reference for the pump design and vibration fault diagnosis of rotating equipment in nuclear power plants. © 2024 SPIE.

关键词： Natural frequencies

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Research on Prediction of Coal Combustion Calorific Value Based on Intelligent Optimisation of ELM by PSO Algorithm 2

Research on Prediction of Coal Combustion Calorific Value Ba...

引用

2nd International conference on Artificial Intelligence and automation Control, AIAC 2024

作者： Liu, Wei Liu, Xiangyi Wu, Aijun Du, Wei Yan, Xiaozhong School of Energy and Power Engineering Changsha University of Science & Technology Hunan Changsha410114 China Baoqing Power Generation Co. National Energy Group Hunan Shaoyang422000 China

ISBN: (纸本)9798331529147

In thermal power plants, different coals must be blended and combusted when they are fed into the furnace. As one of the key indices of blending, accurately and rapidly predicting the heat of coal is very important for coal blending in power plants. In order to improve the accuracy of the thermal value of coal prediction, a model is proposed for the calorific value of coal combustion based on the particle swarm optimization (PSO) algorithm and the extreme learning machine (ELM) for the coal quality data of a power plant. In comparison to the BP neural network and the ELM prediction model, the PSO-ELM prediction model proposed in this paper exhibits the lowest error, superior overall prediction efficacy, and a goodness of fit of 99.4%. © 2024 IEEE.

关键词： Prediction models

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Design and research of 5G network architecture and typical application scenarios for pumped storage power stations 2

Design and research of 5G network architecture and typical a...

引用

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

作者： Wang, Ruihuan Wang, Chen Ma, Shuai Liu, Xiaodong Chen, Xin Zheng, Qiang Wang, Huimin Hou, Yanfeng Northwest Engineering Corporation Limited Power China Digital & Smart Engineering Division Xi'an710065 China

ISBN: (纸本)9798350368208

With the continuous increase of installed capacity of pumped storage power station, the difficulty of operation, maintenance and monitoring of pumped storage power station also increases. 5G, as a new generation of mobile communication technology, has greatly improved in all aspects compared with 4G technology. Therefore, the combination of 5G communication technology and pumped storage power stations can bring many performance improvements in terms of operation capacity, safety and stability. Combined with the problem of insufficient monitoring capacity of the current pumped storage power station, this paper analyzes and designs the application scenarios and application functions of the pumped storage power station under the scenarios, and analyzes the requirements of the network communication capability of the scenarios according to the application scenarios. The monitoring system architecture of pumped storage power station based on 5G communication is designed to meet the current needs of the power station, and the network architecture of pumped storage power station based on 5G communication is designed in combination with 5G and other technologies, and its feasibility and superiority are proved by comparing with traditional schemes. The current control requirements of pumped storage power stations are analyzed, and a new internal control scheme of power stations is designed based on 5G related technologies. In the scenario based on 5G communication, a new control method of pumped storage power station is designed. First, a new bus net load prediction algorithm is designed based on regional characteristics, which is more targeted than the traditional method using regional characteristics respectively. Secondly, according to the guideline control method, the inverter power is allocated according to the current power of the sample inverter, which is safer than the direct average allocation. Finally, for the inverter power climbing scenario, a new maximum power tr

关键词： 5G mobile communication systems

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AMI-based electric energy meter status assessment technology 4

AMI-based electric energy meter status assessment technology

引用

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

作者： Qin, Yonglin Laibin Power Supply Bureau Guangxi Laibin546100 China

ISBN: (数字)9781510686656

ISBN: (纸本)9781510686649

The essay explores smart meter status assessment technology within the context of Advanced Metering Infrastructure (AMI), aiming to enhance the reliability and maintenance efficiency of smart meters. By implementing advanced monitoring and fault detection, health status evaluation, remote diagnostics, and data analysis methods, the study achieves real-time evaluation of smart meter status. The findings indicate that these technologies effectively improve meter accuracy, extend operational life, and reduce maintenance resources, thereby optimizing overall smart grid management. © 2024 SPIE.

关键词： Advanced metering infrastructures

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