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2nd Information Communication Technologies Conference, ICTC 2021

作者： Bai, Wei Lu, Yang Zhai, Di Liu, Bowen Li, Letian Zhu, Suxing Electric Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory Beijing102209 China Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9780738142876

In order to balance the transmission efficiency and energy consumption of the power system sensor network, we proposed an algorithm that improved the parameter adjustment mode of the particle swarm optimization (PSO) algorithm. To complete effective routing and clustering, and to extend the lifetime of the network, we analyze the energy level and transmission status of sensor nodes and other parameters. The simulation results show that the solution has a more balanced energy consumption while meeting the data transmission efficiency of power system equipment. © 2021 IEEE.

关键词： Particle swarm optimization (PSO)

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Design of a Container-based Broadband RF Pulse Signal Analysis Algorithm Integration Scheme

Design of a Container-based Broadband RF Pulse Signal Analys...

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International Conference on Systems and Informatics (ICSAI)

作者： Wenfeng Tian Hui Deng Pengfei Zeng State Grid Smart Grid Research Institute Co. LTD Nanjing China State Grid Smart Grid Research Institute Co. LTD and Application State Nanjing China Electric Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory Nanjing China

ISBN: (纸本)9781665474498

In order to better support the self-learning and dynamic upgrading of broadband RF pulse signal intelligent detection terminal for interference, partial discharge defective pulse signal features and its extraction algorithm, combined with the multi-sensor fusion, resource limitation and real-time information processing faced by the intelligent detection terminal, this paper is based on the principle of lightweight Docker container technology architecture, the partial discharge algorithm is developed, released, deployed, and The paper also adopts the multi-agent resource scheduling of lightweight containers to realize the intelligent scheduling of resources and continuous iteration of algorithms for broadband RF partial discharge detection system, supporting the development and application of broadband RF pulse signal detection and real-time analysis devices.

关键词： Radio frequency Partial discharges Heuristic algorithms Containers Dynamic scheduling Feature extraction Real-time systems

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Control Strategy of Flywheel Energy Storage Machine-Side Converter Based on Fuzzy Reasoning and Sliding Mode Control 4

Control Strategy of Flywheel Energy Storage Machine-Side Con...

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4th International Conference on power and Energy technology, ICPET 2022

作者： Wang, Shiqi Liu, Guangchen Zhang, Jianwei Tian, Guizhen Wang, Fangsheng Jing, Lili University of Technology College of Electric Power Inner Mongolia Hohhot China Integrated Energy Service Company Limited State Grid Corporation of China Inner Mongolia Eastern Power Hohhot China Application Jining Normal University Key Laboratory of High Speed Signal Processing and Internet of Things Technology Ulanqab China

ISBN: (数字)9781665480796

ISBN: (纸本)9781665480796

Installing a certain capacity of flywheel energy storage system (FESS) at the grid connection of wind farms can effectively smooth the grid-connected power and improve the grid friendliness of wind farms. With the traditional control method, the FESS power response speed is slow and the flywheel speed is easy to exceed the limit. Considering these issues, this paper proposes a control strategy for the FESS machine-side converter based on fuzzy reasoning and sliding mode control (SMC). Based on the actual output power of wind farms, the expected grid-connected power and flywheel speed, the correction coefficient is obtained by fuzzy reasoning to correct the reference value of flywheel power in real time. The corrected power reference value is used as the input of the designed SMC to realize the power control of FESS. The simulation results show that the control strategy proposed in this paper can achieve the purpose of smoothing the grid-connected power of wind farms with good dynamic response characteristics, and the flywheel speed does not cross the limit during the smoothing process. © 2022 IEEE.

关键词： Flywheels

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Time Sensitive Routing Strategy Based on Flow Label 2

Time Sensitive Routing Strategy Based on Flow Label

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2nd Information Communication Technologies Conference, ICTC 2021

作者： Hu, Ziwei Bai, Wei Lu, Yang Chen, Guangshuo Li, Letian Wang, Yunqi Xv, Xin Elec. Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory Beijing102209 China Beijing Jiaotong University Beijing100044 China State Grid Chongqing Electric Power Co. Electric Power Research Institute Chongqing401123 China

ISBN: (纸本)9780738142876

There are a variety of transmission services in the electric power Internet of Things based on IPv6, In order to satisfy the different delay requirements of different transmission services, a time sensitive routing strategy based on flow label is proposed. The strategy analyzes the transmission delay and packet loss rate, so that routing can choose more efficient and more suitable transmission link. The simulation results show that this strategy can effectively reduce the packet loss rate while satisfying the transmission delay. © 2021 IEEE.

关键词： Packet loss

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Modeling and Testing of Thermoelectric Generator Based Energy Harvester for powering Wireless Sensor Node Used in Condition Monitoring System for HVDC Converter

Modeling and Testing of Thermoelectric Generator Based Energ...

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International Conference on Electrical Materials and power Equipment (ICEMPE)

作者： Tian Lan Qinwei He Chunlong Li Yuanliang Lan Weilin Liu Kanjun Zhang Dept. of intelligent sensing and monitoring Global energy interconection research institute europe GmbH Berlin Germany Electric Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory State Grid Smart Grid Research Institute Co. Beijing China State Grid Hubei Electric Research Institute Wuhan Hubei China

This paper focuses on the modeling and testing of a thermoelectric generator (TEG) -based energy harvester for powering wireless sensor nodes in a high-voltage direct current (HVDC) converter. The objective is to investigate the feasibility of using an environmental power-based energy harvesting solution for powering wireless sensor nodes in harsh industrial environments. The paper firstly models the thermoelectric generator, and then the experimental validation of the TEGbased energy harvester is carried out in a real HVDC converter module. The results prove the feasibility of using a thermoelectric generator as an energy source for powering wireless sensor nodes in condition monitoring for HVDC converter.

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Sulfonate-functionalization in Zn-iodine batteries as one stone kills two birds:iodine limiter and uniform Zn plating guidance layer

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Science China Materials 2024年第9期67卷 2889-2897页

作者： Wentao Qu Chenyu Wen Baohui Chen Yong Cai Ming Zhang Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics&Devices School of Physics and ElectronicsHunan UniversityChangsha410082China Engineering Research Center of Advanced Semiconductor Technology and Application of Ministry of Education&Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education College of Semiconductors(College of Integrated Circuits)Hunan UniversityChangsha410082China College of Materials Science and Engineering Hunan UniversityChangsha410082China Changsha Semiconductor Technology and Application Innovation Research Institute College of Semiconductors(College of Integrated Circuits)Hunan UniversityChangsha410082China State Key Laboratory of Disaster Prevention&Reduction for Power Grid(Hunan Electric Power Corporation Disaster Prevention and Reduction Center) Changsha410007China

Aqueous Zn-iodine(Zn-I_(2))batteries have attracted extensive research interest as an emerging redox conversion energy storage system due to the low cost and high ***,the shuttling effects of polyiodides arising from incomplete redox conversion and inhomogeneous Zn plating on the Zn anode surface always hinder the commercial application of Zn-I_(2)*** this work,a two-birds-with-one-stone strategy is reported for long-life Zn-I_(2)*** on the strategy,the sulfonate-functionalized carbon fiber not only acts as the excellent iodine limiter to inhibit iodine species shuttling,but also as the uniform Zn plating guidance layer on the Zn anode surface to prevent the inhomogeneous deposition of Zn^(2+).Consequently,a superior cycling stability(a capacity of 124 mAh g^(-1)after 10,000 cycles at 5 A g^(-1))is *** calculations illustrate that sulfonate groups successfully induce charge redistribution on the carbon substrate,thereby strengthening the electronic interactions of the iodine species with the carbon *** charge-enriched sulfonate groups can guide the uniform deposition of Zn^(2+)through a strong Coulombic effect with Zn^(2+).This work gives a new perspective on the integrated design of cathodes and anodes for rechargeable batteries.

关键词： sulfonate-functionalization iodine limiter uniform deposition Zn plating guidance layer Zn-iodine batteries

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Discussion on Industrial Internet Platform Construction Based on power Internet of Things

Discussion on Industrial Internet Platform Construction Base...

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2021 International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation technology, MEMAT 2021

作者： Wang, Yao Liu, Weiliang Zhou, Jianqi Liang, Yun Global Energy Interconnection Research Institute Co. Ltd. Elec. Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory Nanjing Jiangsu China State Grid Jiaxing Electric Power Supply Company Jiaxing Zhejiang China

At present, the development of industrial Internet platform is in a period of large-scale expansion. Since 2017, China has issued a series of documents, such as the Guidance on Deepening "Internet + advanced Manufacturing"to Develop Industrial Internet, the Action Plan for Industrial Internet Development (2018-2020), and the Industrial Internet App Cultivation Project (2018-2020), which constantly points out the direction for the development of the industrial Internet industry. The power Internet of Things connects the equipment, customers and data in all links of energy production, transmission and consumption in real time, fully bearing the production and operation of power grid, enterprise management and new business development, etc. It has the characteristics of ubiquitous terminal access, open platform sharing, computing cloud collaboration, convenient and flexible application, etc. This paper aims to discuss how the power Internet of Things can help the construction of the industrial Internet, provide strong data resource support and service for the safe and economic operation of the power grid, improve business performance, improve service quality, cultivate and develop strategic emerging industries, and open up a new road for management innovation, business innovation and value creation. © Published under licence by IOP Publishing Ltd.

关键词： Internet of things

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Study on Performance Modification of Insulation Wraps for power Transmission Line Corona Noise Prevention

Study on Performance Modification of Insulation Wraps for Po...

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2021 International Conference on Intelligent computing, Automation and Systems, ICICAS 2021

作者： Yiyi, Liu Wei, Chen Dan, Lu Junjie, Wu Wei, Qi State Grid Hunan Electric Power Corporation Research Institute State Grid Laboratory of Electric Equipment Noise and Vibration Research Changsha China Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan China

ISBN: (纸本)9781665428101

Study and prevention of transmission line corona noise has become an important means to effectively promote the environmental friendliness and energy saving of transmission line. Studies have shown that using hydrophilic coating treatment on the conductor surface, so that under the condition of precipitation, the rainwater can be evenly distributed on the conductor surface to reduce the formation density of water droplets, which can weaken the impact of raindrops on the curvature radius of the conductor. As a result, less distorted electric field and soft noise were produced, leading to reduce corona noise ultimately. The greater hydrophilicity of the conductor surface, the more significant the reduction of corona noise is. In this paper, experiments have validated that the modification of nano aluminum oxide by electron beam radiation graft technology can improve its surface reactivity, promote its dispersion and bonding ability in RTV rubber matrix, and then elevate the hydrophobicity, mechanical properties and aging resistance of modified RTV silicone rubber. In addition, specific properties of thermal conductivity and hydrophobicity can be improved by further adding functional monomers. © 2021 IEEE.

关键词： Electric lines

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Online Multi-Parameter Monitoring in Overhead Transmission Lines Based on Distributed Optical Fiber Sensor 4

Online Multi-Parameter Monitoring in Overhead Transmission L...

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4th International Conference on Energy, Electrical and power Engineering, CEEPE 2021

作者： Liang, Yun Xiao, Jingfeng Huang, Li Zhang, Ziping Corporation Joint Laboratory Global Energy Interconnection Research Institute Co. Ltd. Electric Power Intelligent Sensing Technology and Application State Grid Beijing102209 China

ISBN: (纸本)9781665433631

In the distributed fiber-optic sensing system for power grid, simultaneous measurement of temperature, strain and vibration based on Brillouin scattering and Rayleigh scattering in fiber could have wide applications. However, there are certain challenges for the case of multi-parameter sensing in power grid, including the interplay of different scattering mechanisms and the interaction of different types of sensing signals. In this paper, a multi-parameter distributed fiber-optic sensing system which can simultaneously measure temperature, strain and vibration is elaborately designed via integrating the signal of Rayleigh scattering and Brillouin scattering. The prototype with multi-parameter sensing capability was successfully developed and it was qualified for monitoring in optical fiber composite ground wire. Experimental results demonstrate that method has excellent potential for the maintenance of overhead transmission line and it is important to enhance the performances such as spatial resolution and measurement distance for further applications. © 2021 IEEE.

关键词： Rayleigh scattering

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A Code Scheme for G3-PLC Physical Layer Specification Based on Turbo Code 2

A Code Scheme for G3-PLC Physical Layer Specification Based ...

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2nd Information Communication Technologies Conference, ICTC 2021

作者： Jianqi, Li Zhe, Zhang Chuanyuan, Zhang Bin, Yang Biyao, Huang Elec. Power Intelligent Sensing Technology and Application State Grid Corporation Joint Laboratory Beijing China State Grid Information AndTelecommuniccation Group Co.Ltd Beijing China BeiJing Guodiantong Network Technology Co. Ltd State Grid Information and Telecommuniccation Group Co.Ltd Beijing China Nanjing Power Supply Company Nanjing China

ISBN: (纸本)9780738142876

In this paper, A G3-PLC coding scheme based on the Turbo code is proposed. The scheme replaces the convolution encoder in the G3-PLC standard with a Turbo encoder. The Turbo encoder based on random inner interleaver and odd-even punching is constructed to adapt to the G3-PLC standard. A comparison with the coding scheme in the G3 specification and LDPC code is performed, confirming that the proposed scheme has well trade-off in flexibility and reliability. Finally, an implementation on G3-PLC Data Concentrator is carried out to prove the Turbo scheme feasibility in future practical narrowband PLC system. © 2021 IEEE.

关键词： Turbo codes

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