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5th International Conference on Smart Grid and Clean Energy Technologies, ICSGCE 2015

作者： Ren, Manman Huang, Qing Jing, Shi Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control Chengdu China

ISBN: (纸本)9781467387347

In smart substation, the interrelationship among different devices is complex. The information in a smart substation is not transmitted through point to point communication, but through a novel communication network. Existing auxiliary systems for maintenance and inspection in intelligent substation cannot visualize the flow of packets in the implementation of specific function in secondary system. This paper, by analyzing the contents and requirements for maintenance and inspection in intelligent substation, designs a visualized function correlation. The function correlation library is built based on the principle of relay protection and expert experience. This library can show the interrelationship of the packets, when one specific function is triggered during the normal operation of substation, Sugiyama algorithm is used to illustrate the complete process of this function implementation. © 2015 IEEE.

关键词： Packet networks

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Development and application of a portable 3-axis transient magnetic field measuring system based on AMR sensor

Development and application of a portable 3-axis transient m...

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2013 IEEE International Conference on Smart Instrumentation, measurement and Applications, ICSIMA 2013

作者： Wang, Xiaohua Huang, Qi Lu, Youliang Du, Mo Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control School of Energy Science and Engineering UESTC Chengdu China

ISBN: (纸本)9781479908431

With the development of smart substations, much attention has been focused on the transient magnetic field (TMF) generated during switching operation in substations. In order to study the TMF, a portable integrated system based on Anisotropic Magneto-resistive (AMR) sensor has been developed. The system mainly consists of magnetic probe, sampling card, and industrial computer. A GPS has also been brought in to stamp the TMF events time. This system can record TMF across a bandwidth from DC to 5MHz and a dynamic range from 20mGs to 6Gs for at least 50ms continuously. laboratory tests show that the system linearity is greater than 97%, the measuring error is less than 3% and the verified rising time of input magnetic field reaches 6.4μs. Field applications are presented at last, they show that the TMF is very complex but regular to some extent, and the stable magnetic fields are in conformity with operation theory. In conclusion, the proposed system is high sensitivity, wide dynamic and relatively wide bandwidth, and it is qualified to most applications in substations. © 2013 IEEE.

关键词： Smart power grids

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Fault detection and isolation based on optimal fault-tolerant observers for linear system

Fault detection and isolation based on optimal fault-toleran...

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International Conference on Electrical and control Engineering, ICECE 2010

作者： Yi, Jianbo Huang, Qi Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control Department of Automation University of Electronic Science and Technology of China UESTC Chengdu Sichuan Province 611731 China

ISBN: (纸本)9780769540313

The problem of diagnosing the actuator faults and sensor faults of linear system with the methods of fault detection and isolation (FDI) technology and optimal fault-tolerant observers is addressed. The measurable outputs used to reconstruct states for the system carry the fault information, which may affect the performance of the system state estimation. In this paper, by comparing the measurable outputs, reliable outputs without fault is selected as the input of the reconstructed system. Then reduced order optimal fault-tolerant observers are used to track the system states. Based on the FDI technology, residual observers are designed to achieve the fault detection for the linear system. Case studies demonstrate the effectiveness of FDI technology and optimal fault-tolerant observers method used in fault detection and isolation. © 2010 IEEE.

关键词： Linear systems

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Design and implementation of a non-contact magnetic field measurement based fault location system for overhead transmission line

Design and implementation of a non-contact magnetic field me...

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2013 IEEE International Conference on Smart Instrumentation, measurement and Applications, ICSIMA 2013

作者： Huang, Qi Yao, Ruoting Li, Fuchao Zhen, Wei Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control School of Energy Science and Engineering UESTC Chengdu China Sichuan Electric Power Research Institute Chengdu China

ISBN: (纸本)9781479908431

As the rapid development MEMS (micro-electromechanical systems) packaging technology and magnetoresistance material technology, MR (magnetoresistive) sensors based on magnetoresistance effect which can carry out point measurement of magnetic field may change the measurement techniques in power systems. The currently available fault location of overhead transmission line approaches are mainly based on traveling-wave technique and impedance-based measurement technique. The novel approach based on non-contact measurement of magnetic field is advantageous over traditional approaches in that it is independent of the distributed line parameters and has a location error smaller than one span. In this paper, after a brief reviewing of the whole system architecture, design of a sensor prototype and the associated monitoring software are presented, and tests are performed to verify the functionalities of the designed system. The sensor is developed based on a 3-D AMR (anisotropic magnetoresistance) sensor and the software supports GIS interface, making the fault location intuitively clear and convenient. © 2013 IEEE.

关键词： Location

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Optimal Scheduling Model of Community Integrated Energy system Based on Cooperative Game Theory

Optimal Scheduling Model of Community Integrated Energy Syst...

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2023 Panda Forum on power and Energy, PandaFPE 2023

作者： Du, Jialin Zhang, Sen Luo, Shihua Yuan, Yiping Hu, Weihao School of Mechanical and Electrical Engineering Sichuan Provincial Key Lab of Power System Wide Area Measurement and Control University of Electronic Science and Technology of China Chengdu China

ISBN: (纸本)9798350321173

Currently, a large number of community integrated energy systems operate independently and lack coordination and cooperation with each other. On the whole, the complementary coupling potential between energy production and consumption has not been fully explored, which is not conducive to the efficient utilization of clean energy. To solve the above problem, this paper proposes an optimal scheduling model of community integrated energy system considering integrated demand response and carbon tax. Moreover, based on cooperative game theory, this paper adopts the Sharpley value to achieve fair and reasonable distribution of cooperation profits. The case study results indicate that the energy sharing model proposed in this article can achieve better economic benefits. © 2023 IEEE.

关键词： Game theory

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New type of fiber optic sensor network for smart grid interface of transmission system

New type of fiber optic sensor network for smart grid interf...

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作者： Huang, Qi Zhang, Changhua Liu, Qunying Ning, Yan Cao, Yongxing Chengdu Sichuan 610054 China Sichuan Provincial Key Lab. of Power System Wide-area Measurement and Control Sichuan Electric Power Test and Research Institute No. 23 Qinghua Rd. Chengdu 610072 Sichuan China

ISBN: (纸本)9781424483570

Smart Grid is aimed to incorporate monitoring, analysis, control and communication capabilities to improve reliability and energy efficiency. However, currently there is no enough sensor to provide information interface for the implementation of smart grid. Therefore, new types of sensors should be deployed to assist the implementation of smart grid. This paper proposes a novel scheme, in which new type of fiber optic sensors (as compared with traditional Farady effect based fiber optic sensor used in power system instrumentation) are used to provide multiple types of information for smart grid. The new Fiber Gragg Gratting (FBG) is advantageous in that it can collect variant types of information and can form a sensor network. A transmission line monitoring system with distributed fiber optic senor setwork is designed, and the procedures to evaluate the status of the overhead transmission line (such as sag, vibration, and galloping) are proposed. A testing setup is built at laboratory, and it is shown that the FBG sensor is capable of obtaining the comprehensive information for evaluating the status of the overhead transmission line. ©2010 IEEE.

关键词： Smart power grids

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Passive Temperature Threshold Sensors Based on RFID and Shape Memory Polymer for power system Monitoring 6

Passive Temperature Threshold Sensors Based on RFID and Shap...

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6th International Conference on power and Energy Technology, ICPET 2024

作者： Guo, Xiaoyu Fan, Libo Han, Rongjie Huang, Jiabin Shi, Yuchao Lai, Yibo Sun, Min Power System Wide Area Measurement and Control of the Key Laboratory of Sichuan Province University of Electronic Science and Technology Chengdu China State Grid Zhejiang Electric Power Company Hangzhou China

ISBN: (纸本)9798350375855

The sensing technology of the power system promotes the deep integration of energy network and data information and helps to build a new type of power system with deep integration of digital and system. It can ensure the stable operation of the power grid. RFID sensors are widely used as passive wireless sensors. While they still face the disadvantage of missing data information when the reader is not actively interrogated. In this paper, a shape memory polymer material is introduced and its thermo-mechanical property of deformation recovery above and below the glass transition temperature is exploited to design a temperature threshold sensor. By measuring the backscatter power of the RFID tag, whether the target exceeds the threshold temperature could be determined. This method can record historical information in a non-electric form when the reader is not actively interrogated, facilitating quick problem solving or troubleshooting. In this paper, a prototype of the SMP material was fabricated using 3D printing technology. And several reader-tag temperature threshold detection experiments at different distances were conducted. The results show that the SMP material recovers its deformation near 60 °C in the reader antenna field range. And the backscatter power amplitude of the two tags is significantly flipped. This validates the feasibility of temperature threshold sensors. When electrical equipment malfunctions lead to high temperatures, temperature threshold sensors can detect the malfunction and solve the hidden problem. © 2024 IEEE.

关键词： Antennas

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Experimental study of Tunnel and Anisotropic Magnetoresistive sensor for power system magnetic field measurement applications 3

Experimental study of Tunnel and Anisotropic Magnetoresistiv...

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3rd IEEE International Conference on Smart Instrumentation, measurement and Applications, ICSIMA 2015

作者： Khawaja, Arsalan Habib Huang, Qi Lian, Libo Sichuan Key Lab of Power System Wide-area Measurement and Control School of Energy Science and Engineering University of Electronic Science and Technology Chengdu China

ISBN: (纸本)9781467372558

This experimental investigation is focused to assess a Tunnel Magneto-Resistive (TMR) and Anisotropic Magneto-Resistive (AMR) sensor for power system magnetic field measurement applications as in current sensing, transmission line monitoring, detection and classification of Transient Magnetic Field (TMF) interference in substations. For measurement applications, AMR sensors have the limitations of low field range up to ±6 Gauss impractical for high magnetic field measurements, disorientation in sensitivity at exposure to field over ±20 Gauss recurrent in outdoor applications and high power consumption not appealing for portable devices. Thus, a complete testing system is established to identify if TMR sensors are a superior candidate for our application domain. For this, both of the sensors were exposed to uniform and transient magnetic field. Experimentation with identical conditioning circuitry confirms the superior performance of TMR sensor over AMR sensor in terms of twice the sensitivity, 200 times reduced power consumption and 5 times more field range. Additionally, in a TMF event, AMR sensor response depicts a time lag of 15 microseconds whereas TMR sensor only lags by 10 nanoseconds. Magnetic fields above field range of AMR sensor disorient the sensor until recalibrated;to cater for this a practical recalibration pulse blinds the sensor for 4 milliseconds once initiated. © 2015 IEEE.

关键词： Anisotropy

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Reinforcement Learning and Its Applications in Modern power and Energy systems: A Review

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Journal of Modern power systems and Clean Energy 2020年第6期8卷 1029-1042页

作者： Di Cao Weihao Hu Junbo Zhao Guozhou Zhang Bin Zhang Zhou Liu Zhe Chen Frede Blaabjerg the Wide-area Measurement and Control Sichuan Provincial Key Laboratory School of Mechanical and Electrical EngineeringUniversity of Electronic Science and Technology of ChinaChengduChina the Department of Electrical and Computer Engineering Mississippi State UniversityStarkvilleMississippiUSA the Department of Energy Technology Aalborg UniversityAalborgDenmark

With the growing integration of distributed energy resources(DERs),flexible loads,and other emerging technologies,there are increasing complexities and uncertainties for modern power and energy *** brings great challenges to the operation and ***,with the deployment of advanced sensor and smart meters,a large number of data are generated,which brings opportunities for novel data-driven methods to deal with complicated operation and control *** them,reinforcement learning(RL)is one of the most widely promoted methods for control and optimization *** paper provides a comprehensive literature review of RL in terms of basic ideas,various types of algorithms,and their applications in power and energy *** challenges and further works are also discussed.

关键词： Reinforcement learning deep reinforcement learning power system operation and control optimization

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A Dynamic control Strategy for Enhancing the Energy Extracting Capability of Magnetic Field Energy Harvesters in Sensor Nodes of power Equipment 14

A Dynamic Control Strategy for Enhancing the Energy Extracti...

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14th International Conference on power and Energy systems, ICPES 2024

作者： Gao, Yuan Fan, Libo Huang, Jiabin Han, Rongjie Sun, Min University of Electronic Science and Technology of China Power system wide area measurement and control of the Key Laboratory of Sichuan Province Chengdu China The State Grid Zhejiang Electric Power Company Hangzhou China

ISBN: (纸本)9798350391329

With the widespread application of sensors nodes in power equipment, providing a stable energy supply for these sensors has become a significant challenge. Traditional batterypowered solutions are costly and difficult to install. The development of energy harvesting technology offers a new technical approach to address this challenge. This paper mainly investigates how to enhance the energy harvesting power of Magnetic Field Energy Harvesters (MEH) under conditions where the magnetic field around power equipment is limited. A dynamic control method is proposed to improve the energy harvesting power of MEH. The fundamental idea of dynamic control is to precisely control the MOSFETs in the rectifier, dynamically adjusting the switching times of the energy harvesting interval to be symmetric around the peak current of the primary side, thereby significantly enhancing harvesting efficiency. This method is particularly applicable when the magnetic core enters the soft saturation region, causing the energy harvesting interval to be less than T/2. Experimental results show that under constant voltage load, dynamic control effectively adjusts the energy harvesting interval, maximizing the current extracted during this interval, thereby effectively increasing energy harvesting power. Compared to passive rectification, active rectification under dynamic control increases the energy harvesting power by 76%, and the power factor of active rectification is 1.7 times that of passive rectification. The research findings provide important theoretical support and practical significance for the application of magnetic field energy harvesting technology in sensor nodes. © 2024 IEEE.

关键词： Sensor nodes

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