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IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Li, Qingmian Zhou, Zexin Du, Dingxiang Li, Zhongqing Li, Wei Wang, Xingguo China Elect Power Res Inst Beijing Peoples R China

ISBN: (纸本)9781479925223

This paper proposes a new scheme of substation area backup protection system based on substation area range of information. A configuration scheme of relay protection in smart substation was proposed firstly, the structure of substation area backup protection (SABP) was introduced, the information matrix of SABP which can reflect the substation topology was established, the protection algorithm of SABP was proposed, the fault-tolerance performance of the proposed protection scheme was also analyzed. According to the analysis of fault direction information, fault current differential information, as well as the information matrix, the SABP can carry out fault location and make a reasonable tripping strategy. The result of case studies shows that the proposed protection algorithm can implement backup protection and circuit breaker failure protection for each electrical element inside smart substation, and has good adaptability to disconnection fault of CT.

关键词： Substation Area Backup protection protection algorithm Information Matrix

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Study on the Substation Area Backup protection in Smart Substation

Study on the Substation Area Backup Protection in Smart Subs...

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Asia-Pacific Power and Energy Engineering Conference (APPEEC)

作者： Chen, Lei Zhang, Kanjun Xia, Yongjun Hu, Gang Hubei Elect Power Co Postdoctoral Sci Res Workstn Wuhan Peoples R China

ISBN: (纸本)9781457705472;9781457705465

Since the interactivity, integrality and instantaneity of the data communication in smart substation have been improved to a higher degree, it can contribute to the construction and realization of substation area backup protection (SABP). In this paper, the structure and characteristics of smart substation were introduced firstly, and the application concept about SABP was presented in detail. According to the comprehensive treatment and judgment for the digital information of whole substation, such as voltage/current samplings of multiple bays, status of circuit breakers, etc., this type protection system can implement the backup protection function for each electrical element inside smart substation. In addition, with regard to the protection algorithm and application structure of SABP, as well as the coordination relationship between SABP and main protection, a few correlation analysis and discussions were carried out. From the analysis results, it can be considered that, the construction of SABP can effectively promote a substation area range of data information sharing and help to enhance the whole protection system's operation performance.

关键词： smart substation substation area backup protection (SABP) information sharing protection algorithm

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The Study on protection algorithms in Multi-domain Optical Networks

The Study on Protection Algorithms in Multi-domain Optical N...

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International Conference on Advances in Computer Science and Engineering

作者： Li Xueyong Gao Guohong Miao Guoyi Yan Shitao Henan Inst Sci & Technol Sch Informat Engineer Xinxiang 453003 Peoples R China

This paper proposes two protection algorithms SBP and PBP with the waveband grouping in fault-tolerant multi-domain optical networks. We also present the concept of layered auxiliary graph to achieve the multi-domain ... 详细信息

ISBN: (纸本)9780878492510

关键词： Optical networks protection algorithm Routing

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algorithm for Microprocessor-based Relay protection

Algorithm for Microprocessor-based Relay Protection

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2010 The 2nd International Conference on Industrial Mechatronics and Automation (ICIMA 2010)

作者： Yang Tingfang College of Electrical and Information Engineering,Changsha University of Science and Technology Changsha,China Yang Xin College of Electrical and Information Engineering,Changsha University of Science and Technology Changsha,China

Generalizing modern microprocessor-based relay protection at the power transmission line,a design of relays based on ARM processor is put *** device used DSP made by TI to be the protective CPU,which mainly answered for controlling data acquisition,the sampled data processing,the protective function implementation,the human interface and peripheral serial interface and Ethernet communication,and used other devices to be assistant to control sampling/holding,multi-path option switch and the I/O switching *** system is mainly composed of several modules such as A/D samples circuit,Fourier algorithm,fault analysis *** test results show the design of the microprocessor-based protection has good performance.

关键词： microprocessor-based relay protection fourier algorithm extra high voltage protection algorithm

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The Model and Simulation Method of the EHV(Extra High Voltage) Transmission System

The Model and Simulation Method of the EHV(Extra High Voltag...

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2nd International Asia Conference on Informatics in Control, Automation and Robotics (CAR)

作者： Yang Tingfang Yang Xin Changsha Univ Sci & Technol Coll Elect & Informat Engn Changsha Hunan Peoples R China

ISBN: (纸本)9781424451944

This paper introduces the method of setting up of the 750kV line model, in accordance with the model of 750kV lines running in different systems under various fault happened a detailed simulation, and according to the simulation results discussed in the transient process of 750kV line and the impact of the protection algorithm of the transient course is discussed.

关键词： model simulation extra high voltage protection algorithm

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Improvements in ground-fault protection of unit-connected generator stator winding using laboratory test environment

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ELECTRIC POWER SYSTEMS RESEARCH 2008年第9期78卷 1635-1639页

作者： Zielichowski, Mieczyslaw Szlezak, Tomasz Wroclaw Univ Technol Inst Elect Power Engn PL-50370 Wroclaw Poland

This paper describes an idea of realization of a software-hardware laboratory environment enabling to run research and implementation in the area of ground-fault protection of modern unit-connected generators. There are three basic elements in this environment: simulation model of a unit-connected generator for investigating intermittent arc ground-faults in generator stator winding, PC-based system for ground-fault waveforms synthesis and microprocessor-based hardware for implementation of a new protection algorithm developed by authors. (C) 2008 Elsevier B.V. All rights reserved.

关键词： stator winding ground-fault simulation model signal synthesis protection algorithm

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Improvement of the voltage difference method to detect arcing faults within unfused grounded-wye 22.9-kV shunt capacitor bank

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IEEE TRANSACTIONS ON POWER DELIVERY 2007年第1期22卷 95-100页

作者： Lim, Jung-Uk Runolfsson, Thordur Myongji Univ Dept Elect Engn Yongin 4497128 South Korea Univ Oklahoma Norman OK 73019 USA Univ Oklahoma Sch Elect & Comp Engn Norman OK 73019 USA

This paper presents an effective algorithm to protect unfused 22.9-kV shunt capacitor banks in grounded-wye connection by improving an existing voltage difference method-based algorithm. It has often been reported that it is difficult to detect ground faults with arc near the input points within the bank using existing algorithms that use only the magnitude of the differential voltage. In this paper, it is shown that ground faults with arc near the input point can be detected by fast Fourier transform (FFT) analysis of the differential voltage and that the proposed algorithm is not impacted by harmonies generated by nonlinear loads which have quantitative influence on the capacitor banks. Consequently, the proposed method using harmonies analysis can be applied as an extended version of the existing detection method. The proposed method is applied to a simplified 22.9-kV real-life Korea Electric Power Corporation system and it is verified that the proposed algorithm can clearly detect faults that are not easily detected by the existing method.

关键词： ground-wye connection harmonics protection algorithm unfused shunt capacitor bank voltage difference method (VDM)

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A novel algorithm on network reliability estimation

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MATHEMATICAL AND COMPUTER MODELLING 2005年第2-3期41卷 119-133页

作者： Xiong, JT Gong, WB Turabo Univ Sch Engn Gurabo PR 00778 USA Univ Massachusetts Dept Elect & Comp Engn Amherst MA 01003 USA

We propose a rational approximation algorithm for network reliability estimation in this paper. Our algorithm can be applied to estimate both the all-terminal reliability measure and the reliability of networks with various protection algorithms. Our algorithm is very efficient and it can obtain the whole reliability function curve. (c) 2005 Elsevier Ltd. All rights reserved.

关键词： rational approximation network reliability protection algorithm performance

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THE TECHNIQUE OF FINITE-IMPULSE-RESPONSE FILTERING APPLIED TO DIGITAL protection AND CONTROL OF MEDIUM VOLTAGE POWER-SYSTEM

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IEEE TRANSACTIONS ON POWER DELIVERY 1992年第2期7卷 620-626页

作者： BASTARD, P EMURA, T MEUNIER, M BERTRAND, P NISSHIN ELECT CO LTD DEPT CONTROLRELAY SECTKYOTO 615JAPAN ECOLE SUPER ELECT DEPT ELECT ENGNF-91190 GIF SUR YVETTEFRANCE

When developing a relaying algorithm, digital filtering is an important step. This paper gives a method to design a FIR filter based upon two objectives: to allow an easy computation and to be as close as possible to a given frequency response. With the help of an example, an original method is also proposed to evaluate the complete sequence of a digital relaying algorithm, based on FIR filtering. Lastly, it is shown how such an algorithm can be used, not only for protection but also for each function of an integrated protection and control system.

关键词： DIGITAL protection FIR FILTERING protection algorithm POWER SYSTEM

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THE TECHNIQUE OF FINITE-IMPULSE-RESPONSE FILTERING APPLIED TO DIGITAL protection AND CONTROL OF MEDIUM VOLTAGE POWER-SYSTEM

THE TECHNIQUE OF FINITE-IMPULSE-RESPONSE FILTERING APPLIED T...

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TRANSMISSION AND DISTRIBUTION CONF OF THE IEEE POWER ENGINEERING SOC

作者： BASTARD, P BERTRAND, P EMURA, T MEUNIER, M

ISBN: (纸本)0780302192

When developing a relaying algorithm, digital filtering is an important step. A method to design a FIR filter based upon two objectives is given. These objectives are to allow easy computation and to be as close as possible to a given frequency response. With the help of an example, an original method is also proposed to evaluate the complete sequence of a digital relaying algorithm, based on FIR filtering. It is shown how such an algorithm can be used, not only for protection but also for each function of an integrated protection and control system.

关键词： DIGITAL protection FIR FILTERING protection algorithm POWER SYSTEM

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