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检索条件"机构=Key Laboratory of Power System Protection and Dynamic"

共 682 条记录，以下是11-20 订阅

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Electromagnetic Scattering Characteristics of Different Polarized Electromagnetic Waves by High Voltage Transmission Lines

Electromagnetic Scattering Characteristics of Different Pola...

引用

International Conference on Wireless power Transfer, ICWPT 2022

作者： Ma, Xianglin Lu, Yanxia Jiao, Chaoqun Zhang, Jianggong Zhao, Zhibin Gan, Zheyuan School of Electrical Engineering Beijing Jiaotong University Beijing100044 China State Key Laboratory of Power Grid Environmental Protection China Electric Power Research Institute Wuhan430073 China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing China

ISBN: (纸本)9789819906307

With the construction of high-voltage transmission lines and various stations, the passive interference of large-scale tower arrays to various stations is becoming more and more serious. In order to obtain the passive interference law of different types of polarized electromagnetic waves, the electromagnetic scattering model of transmission lines is established. The passive interference law of circularly polarized electromagnetic wave is obtained by simulating two kinds of polarized electromagnetic wave. Taking frequency, distance and tower cardinality as variables, the difference of passive interference law between the two polarized electromagnetic waves is analyzed. Finally, it is concluded that the passive interference level of circularly polarized electromagnetic wave is generally less than that of vertically polarized electromagnetic wave, and the variation law of frequency and array coefficient is different. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Electric lines

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Electromagnetic scattering characterization of a layered rough soil ground

Electromagnetic scattering characterization of a layered rou...

引用

2024 International Conference on power system Engineering and Smart Grid, PSESG 2024

作者： Zhang, Jiangong Yu, Pengcheng Gan, Zheyuan Chen, Yajie Cao, Xiaoyu Zhao, Zhibin Jiao, Chaoqun State Key Laboratory of PowerGrid Environmental Protection China Electric Power Research Institute Wuhan Branch Hubei Wuhan43000 China Jinhua Power Supply Company State Grid Zhejiang Electric Power Company Zhejiang Jinhua321000 China School of Electrical Engineering Beijing Jiaotong University Beijing100044 China State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources North China Electric Power University Beijing102206 China

As the density of additional ultra-high voltage alternating current and direct current transmission lines in China increases, so does the passive interference from transmission lines to various types of equipment. At present, the objective of previous studies is to examine the impact of passive interference on the performance of transmission lines, ignoring the impact of rough soil ground on the passive interference of transmission line. Put it another way, the earth as a pure conductor processing, the use of this simplified processing method of the results obtained from the measured value is often a large deviation. For this reason, this paper considers the added transmission line erected in the rough soil ground environment. A more realistic passive interference model for ultra-high voltage transmission lines developed. We are looking at how electromagnetic waves behave when they are transmitted through different types of rough soil. To do this, we have created a model of layered rough soil using the Monte Carlo method. Then, the scattering coefficients of layered rough soil ground at two stations are calculated by going to use the method of moments. In the end, the effects of roughness change and distance change of layered rough soil ground on the scattering coefficients are investigated, and a model of layered rough soil ground is established on the basis of single-layered rough ground to take a look at how electromagnetic waves behave when they hit layered, uneven soil. © 2024 Institute of Physics Publishing. All rights reserved.

关键词： Soil mechanics

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Verification and Testing of Emergency Stability Control for Micro-Grid in Industrial Park

Verification and Testing of Emergency Stability Control for ...

引用

Electrical Automation and Artificial Intelligence (ICEAAI), International Conference on

作者： Zaixin Yang Tao Han Yannan Qu Yedong Taopu Inner Mongolia Key Laboratory of Smart Grid of New-type Power System Institute of Relay Protection Inner Mongolia Electric Power Science & Research Institute Hohhot China

ISBN: (数字)9798331506797

ISBN: (纸本)9798331506803

With the development and transformation of industrial micro-grid, analyzing the emergency stability control of micro-grid when a fault occurs and the section is disconnected is of significant importance. In this paper, the industrial power grid characteristics are analyzed and the mathematical model of comprehensive loads are established. An emergency stability controller with voltage control and frequency control functions is proposed and the block of controller is designed by the programming language DSL. A micro-grid in industrial park based on RTDS is used for semi physical simulation testing of emergency stability control strategy. Simulation of under-frequency reverse power show that the correctness and effectiveness of the emergency stability control strategy.

关键词： Computer languages power system stability Control systems Stability analysis power grids Mathematical models DSL Voltage control Frequency control Testing

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Verification and Testing of Emergency Stability Control for Micro-Grid in Industrial Park

Verification and Testing of Emergency Stability Control for ...

引用

2025 International Conference on Electrical Automation and Artificial Intelligence, ICEAAI 2025

作者： Yang, Zaixin Han, Tao Qu, Yannan Taopu, Yedong Institute of Relay Protection Inner Mongolia Electric Power Science & Research Institute Inner Mongolia Key Laboratory of Smart Grid of New-type Power System Hohhot China

ISBN: (纸本)9798331506797

关键词： DSL emergency stability control micro-grid RTDS

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New Intelligent Sensing Terminal system Architecture of Internet of Things

New Intelligent Sensing Terminal System Architecture of Inte...

引用

International Conference on Internet of Things, Communication and Intelligent Technology, IoTCIT 2022

作者： Zhou, Lidan Li, Jing Yao, Gang Wang, Hongyu Li, Jian Liu, Siyang Nie, Yongjie School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai Minhang District200240 China Wiscom System Co. LTD. Nanjing China State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing400044 China Electric Power Research Institute Yunnan Power Grid Co. Ltd. Yunnan Kunming650217 China Yunnan Key Laboratory of Green Energy Electric Power Measurement Digitalization Control and Protection Yunnan650217 China

ISBN: (纸本)9789819904150

In view of the fragmentation of the functions, forms and basic software and hardware of the existing IoT terminals, we propose an IoT intelligent sensing terminal system architecture, in which the intelligent sensing layer collects external data and information and transmits it to the computing fusion collaboration layer for data processing, fusion and task collaboration. The local application layer generates processing results and interacts with the cloud application layer through the communication layer. The new intelligent sensing terminal system of the IoT has an integrated local four-tier architecture, which can meet the needs of the large-scale development of the IoT. In addition, it can work uniformly under the control of the cloud, or complete the underlying tasks independently. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Internet of things

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Research on Mapping Method Between Smart Energy and Intelligent Sensing Terminal

Research on Mapping Method Between Smart Energy and Intellig...

引用

2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022

作者： Liu, Siyang Mao, Yuxing Long, Yunfeng Pan, Jianyu Jiang, Tianyan Nie, Yongjie School of Electrical Engineering Chongqing University State Key Laboratory of Power Equipment & System Security and New Technology Chongqing China Electric Power Measurement Digitalization Control and Protection Yunnan Power Grid Co. Ltd. Yunnan Key Laboratory of Green Energy Yunnan Kunming China

ISBN: (数字)9781665407502

ISBN: (纸本)9781665407502

In the process of smart city construction, each city has its characteristics, so we should implement policies according to the city. Smart energy is an important cornerstone of smart city construction. This paper proposes a mapping method between smart energy and Intelligent Sensing Terminal. Firstly, a typical application scenario design of the smart city is proposed. Then, the smart city application scenario fitness calculation model is given combined with the analysis of macro and micro scenes. Finally, Intelligent Sensing Terminal and scene mapping mechanism are proposed by a new two-dimensional coding method. This method can quickly and effectively calculate the location to be arranged and the optimal number of devices, so as to reduce resource consumption and improve the quality of perceived data. © 2022 IEEE.

关键词： Smart city

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key Technologies of IoT Intelligent Sensing Terminal for Smart Energy

Key Technologies of IoT Intelligent Sensing Terminal for Sma...

引用

2022 IEEE International Conference on High Voltage Engineering and Applications, ICHVE 2022

作者： Liu, Siyang Mao, Yuxing Long, Yunfeng Pan, Jianyu Jiang, Tianyan Cao, Min State Key Laboratory of Power Equipment & System Security and New Technology School of Electrical Engineering Chongqing University Chongqing China Yunnan Key Laboratory of Green Energy Electric Power Measurement Digitalization Control and Protection Electric Power Research Instute Yunnan Power Grid Co. Ltd. Yunnan Kunming China

ISBN: (数字)9781665407502

ISBN: (纸本)9781665407502

To build a smart energy system, we must first deploy a fully aware terminal layer to connect all energy things through perception. This paper proposes key technologies of IoT intelligent sensing terminal for smart energy. Firstly, smart energy Internet of things function is given to analyze the architecture for smart energy Internet of things. Analysis of Internet of Things terminal ecosystem is located. Finally, the key technologies including resource unified modeling, hardware and software system of Internet of things terminal are proposed. Customized design of intelligent sensing terminal is given to manufacture intelligent sensing terminal for different application scenarios of smart energy. © 2022 IEEE.

关键词： Internet of things

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Research for MMC Topology of power Conversion system and Test for Control Performance Based on RTDS

Research for MMC Topology of Power Conversion System and Tes...

引用

Smart Grid and Energy Internet (SGEI), International Conference on

作者： Zaixin Yang Xusheng Jian Xiaokai Liu Feng Liu Inner Mongolia Key Laboratory of Smart Grid of New-type Power System Institute of Relay Protection Inner Mongolia Electric Power Science & Research Institute Hohhot China

ISBN: (数字)9798350368314

ISBN: (纸本)9798350368321

With the widespread application of PCSs in power system for large-scale new energy, it is of great significance to study the new topology structure and control strategy of power conversion system (PCS). In this paper, a MMC topology of PCS is studied and MMC digital model is established. The control strategy is proposed to enable PCS to operate continuously for 10 minutes under 0.2 pu. grid voltage. Therefore, a novel RTDS for PCS controller testing platform is established. power control testing, frequency response testing, and voltage ride through testing of the actual hardware of PCS controller is completed. The correctness and effectiveness of the control strategy of the new hybrid energy storage multifunctional controller is verified.

关键词： Low voltage Mathematical models Frequency response Inverters Topology Smart grids power conversion Integrated circuit modeling Voltage control Energy storage

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Study on the Catalytic Degradation of Strong Greenhouse Gas SF6 Using a Two-Dimensional Metal Organic Framework

Study on the Catalytic Degradation of Strong Greenhouse Gas ...

引用

IEEE International Conference on Dielectrics (ICD)

作者： Kexin Zhu Langlang Lv Guangzhi Chen Hua Jiang Xiangyu Wang Liangjun Dai Fuping Zeng State Key Laboratory of Power Grid Environmental Protection School of Electrical Engineering and Automation Wuhan University Wuhan China State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China

ISBN: (数字)9798350308976

ISBN: (纸本)9798350308983

With the continuous development of sustainable and renewable energy sources, the catalytic degradation of SF 6 , a strong greenhouse gas, is receiving increasing attention. In this article, we provide a reference for the selection of SF 6 thermal catalysts by simulating the adsorption and decomposition processes of SF 6 on two-dimensional metals with different metal modifications. Based on DFT (density functional theory), simulate energy changes and charge transfer during adsorption and decomposition processes. The absence of band gaps in the energy band structure of Cu-CN, Mo-CN and Tc-CN implies their metallic character, which can be attributed to the effective orbital interaction between the benzene ring and MN 4 . In addition, there is a strong chemisorption between the CN structures of Cr, Mn and Ru and SF 6 with significant bond length changes, charge transfer. The CN structures of these three metals have better potential to catalyze SF 6

关键词： Degradation Structural rings Renewable energy sources Photonic band gap Adsorption Sulfur hexafluoride Thermal decomposition

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Wide Bandwidth Rogowski Coil Overvoltage Measurement system Using the Tap of the Transformer Bushing

Wide Bandwidth Rogowski Coil Overvoltage Measurement System ...

引用

Advanced Electrical and Energy systems (AEES), International Conference on

作者： Min Dai Lei Wang Zhenxing Fan Hao Liu Guoming Ma State Key Laboratory of Power Grid Environmental Protection Wuhan China State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources North China Electric Power University Beijing China

Bushings are one of the vulnerable parts to overvoltage effects in power transformers. Therefore, it is significant to investigate the wide bandwidth overvoltage measurement system for the transformer bushing. In this paper, a wide bandwidth overvoltage measurement system using the tap of the bushing was developed. Two Rogowski coils were utilized as the main component to address the wide frequency range and large variation in ground current at the tap of the bushing. Rogowski coils with a frequency threshold of 5kHz were designed to measure the low-frequency and high-frequency components of the overvoltage separately. An integrator was used to reconstruct the overvoltage on the top of the bushing. Lightning overvoltage and operational overvoltage produced by a bushing experimental platform were measured, verifying the excellent performance of the proposed sensor.

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