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检索条件"机构=NARI Technology Inc. and State Key Laboratory of Smart Grid Protection and Control"

共 123 条记录，以下是111-120 订阅

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Self-Healing smart grid system based on artificial neural network

Self-Healing smart grid system based on artificial neural ne...

引用

2017 IASTED International Conference on Modelling, Identification and control, MIC 2017

作者： Li, Chen Wei, Qi Jian, Shen Zhe, Hou NARI Group Corporation State Grid Electric Power Research Institute Nanjing211106 China NARI Technology Co Ltd Nanjing211106 China State Key Laboratory of Smart Grid Protection and Control Nanjing211106 China Hangzhou Xiao Shan China Power Supply Company China

ISBN: (纸本)9780889869882

In this paper, a novel logic decomposing method in self-healing smart grid system based on neural networks is presented and the theoretical fundamentals of the design are expounded. The proposed automatic smart grid topology search algorithm, which is based on artificial neural network (ANN), realizes the adaptive function of analyzing and updating the self-healing system logic in the grid automatically. Furthermore, the configuration design in a neural network mode makes the system have the parallel processing mechanism and the ability of learning and fault decision-making. The outlet of protection is transferred from the neural networks by adjusting the connecting weights. Therefore, the system can classify and recognize arbitrarily complex connecting mode and acting logic.

关键词： Neural networks

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Vertically Integrated Outdoor In-situ Line protection

Vertically Integrated Outdoor In-situ Line Protection

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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： WU Tonghua ZHENG Yuping HU Guo YAO Gang ZHOU Hualiang Hou Xiaofan State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Technology Co.Lt State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Group Corporatio NARI Technology Co.Ltd. Nanjing 211106China State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Technology Co.Lt

Aiming at the problems of speed,reliability,operation and maintenance in the practical application of line protection in conventional and smart substation,system architecture and technical scheme of in-situ(similar with the meaning of on site or near process)line protection based on vertical integration and outdoor installation are *** functions of single-bay merge unit,relay protection,intelligent terminal are integrated vertically to reduce device amounts and varieties,simply configuration,reduce signal transmission,shorten the protection action ***'s more,this vertically integrated device is applied to provide data acquisition and control execution support for substation-area protection,security and stability device and other substation-area *** performances are tested and ***,the scheme is verified to be feasible and advanced through the results of the experiment.

关键词： in-situ relay protection line protection merge unit vertical integration

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The Research of New Network Architecture of protection and control Device in Substation

The Research of New Network Architecture of Protection and C...

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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： ZHENG Yuping WU Tonghua DAI Wei ZHOU Hualiang LI Yanxin JIANG Yuan State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Group Corporatio State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Technology Co.Lt State Key Laboratory of Smart Grid Protection and Control Nanjing 211106China NARI Technology Co.Lt NARI Technology Co.Ltd. Nanjing 211106China

The paper presents the configuration princ.ple on near-process installation of protection and control device firstly,regarding to problems and challenges relevant to equipment configuration and telecommunication network brought up by secondary device near-process installation in ***,the solutions of secondary near-process device configuration are also proposed which inc.ude relay protection within both standalone bay and across bays,bay control unit and public terminal,*** addition,two telecommunication solutions are also given based on the above,which inc.ude two aspects,the first is the network architecture with MMS/SV/GOOSE network all in one based on PRP,and the second is HSR network which is independent on ***,network performance is estimated and compared quantized.

关键词： near-process installation network architecture multi-HSR PRP MMS/SV/GOOSE network public terminal synchronous sampling

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High-accurate estimation method of sub-synchronous and super-synchronous harmonic parameters on PMU

High-accurate estimation method of sub-synchronous and super...

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6th International Conference on Renewable Power Generation

作者： Tan, Yong Chen, Rong Wang, Meng Zhang, Min Hou, Mingguo NARI Group Corporation State Grid Electric Power Research Institute Nanjing21106 China NARI Technology Development Co. Ltd. Nanjing211061 China State Key Laboratory of Smart Grid Protection and Control Nanjing210061 China School of Rail Transportation Soochow University Suzhou215131 China

With the rapid development of renewable energy power generations, AC/DC transmissions and static compensations etc., power electronic technology has been widely applied in power system. As traditional power equipment is replaced by a large number of power electronic devices, the disturbances such as harmonic interference and sub-synchronous oscillation are more frequently. In order to detect the subsynchronous oscillation in power system in time, and take measures to ensure the safety and stability of power system, this article analyses the algorithm princ.ple of the phasor measurement unit (PMU) and the communication architecture of wide area measurement system (WAMS)/ PMU system. According to the IEEE Std C37.118-2011 standard, it elaborates the problems and the limitations existing in the monitoring of sub-synchronous and super-synchronous harmonic parameters on WAMS. On the basis of the above, a method of online identification and alarm for the sub-synchronous and super-synchronous harmonic parameters on PMU device is proposed. Combined with the fast Fourier transform spectrum correction theory, the high-accuracy identification method of distributed sub-synchronous and super-synchronous harmonic parameter is realised. The feasibility and accuracy of the method is verified by simulation experiments. © 2017 Institution of Engineering and technology. All Rights Reserved.

关键词： Fast Fourier transforms

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Global Status Event-Based Iterative Co-Simulation Framework for Power and Communication

Global Status Event-Based Iterative Co-Simulation Framework ...

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IEEE Power and Energy Society General Meeting

作者： Heqin Tong Jianbo Luo Ming Ni Yuecen Li Yusheng Xue Yanhong Wei NARI Group Corporation NARI Technology Co. Ltd. State Key Laboratory of Smart Grid Protection and Control Nanjing China Sunshine Energy Property Management Group Inc. Xinyi China

ISBN: (纸本)9781538622131;9781538622124

Power system security and stability control is heavily dependent on the reliability of communication network. The communication interruption and latency may cause security and stability issues in power system. Thus, studying the dynamic procedure of the interaction between power system and communication network in fault situation becomes more and more important. In this paper, by analyzing the weakness of the existing co-simulation frameworks, a new co-simulation framework, Global Status Event-Based Iterative Co-simulation Framework, is proposed, in which a global event scheduler manages the communication simulator and power simulator, and power simulator will run iterative simulation as a new event is identified and added to the global event scheduler. Then, a co-simulation platform based on the proposed framework is introduced which integrates the power system simulator and communication network simulator. Finally, a case is studied and reveals the procedure of the cascading failures in both power system and communication network, which cannot be captured by the simulation of a single system.

关键词： Indexes Synchronization

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Active Distribution Network Secondary Coordinated Voltage control Based on Multi-Objective Linear Programming

Active Distribution Network Secondary Coordinated Voltage Co...

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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： LU Wen TU Mengfu DING Qia DU Hongwei NARI Group Corporation(State Grid Electrical Power Research Institute) NanjingChina211106 NARI Technology Co. Ltd.Nanjing211106 State Key Laboratory of Smart Grid Protection and Control NanjingChina211106

Distribution network with a large number of distributed generators(DG)puts forward higher requirements for coordinated control of voltage and reactive *** coordinated voltage control is an effective method to improve distribution network voltage level under the condition of high permeable *** on the basic princ.ple of the secondary coordinated voltage control,multi-objective linear programming method is used to solve the contradiction between the safety and the economy of the distribution network,and the optimization goal construction,control strategy selection and control process realization are introduced *** simulation results show that the secondary coordinated voltage control based on multi-objective programming can be used to solve distributed network voltage stability,but also can improve the efficiency of ADN.

关键词： Active distribution network Secondary voltage control Multi-objective linear programming

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High accurate estimation method of sub-synchronous oscillation parameters on PMU

High accurate estimation method of sub-synchronous oscillati...

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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： TAN Yong WANG Meng SHEN Jian ZHANG Min HOU Mingguo Nari Group Corporation(State Grid Electric Power Research Institute) Nanjing 21106China NARI Technology Development Co.Ltd Nanjing 211061China State Key Laboratory of Smart Grid Protection and Control Nanjing 210061China

With the rapid development of renewable energy power generations,AC/DC transmissions and static compensations etc,power electronic technology has been widely applied in power *** traditional power equipment is replaced by a large number of power electronic devices,the disturbances such as harmonic interference and sub-synchronous oscillation are more *** order to detect the sub synchronous oscillation in power system in time,and take measures to ensure the safety and stability of power system,this article analyses the algorithm princ.ple of the PMU and the communication architecture of WAMS/PMU *** to the IEEE Std C37.118-2011 standard,it elaborates the problems and the limitations existing in the monitoring of sub-synchronous and super-synchronous harmonic parameters on *** the basis of the above,a method of on-line identification and alarm for the sub-synchronous and super-synchronous harmonic parameters on PMU device is *** with FFT spectrum correction theory,the high accuracy identification method of distributed sub synchronous and super synchronous harmonic parameter is *** feasibility and accuracy of the method is verified by simulation experiments.

关键词： sub-synchronous oscillation amplitude ratio method phasor measurement unit(PMU) FIR Filters

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Design of A Game Theory Based Defense System for Power System Cyber Security

Design of A Game Theory Based Defense System for Power Syste...

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IEEE International Conference on Cyber technology in Automation, control, and Intelligent Systems

作者： Ming Ni Anurag K. Srivastava Rui Bo Jie Yan NARI Technology Inc. State Key Lab of Smart Grid Protection and Control Nanjing 211106 China Washington State University Pullman WA 99164 USA Midcontinent Independent System Operator Minneapolis 55221 USA

ISBN: (纸本)9781538604915

With numerous information and communication devices deployed in smart grid, cyber security becomes a big challenge faced by all power companies around the globe. This paper first introduces possible cyber-attacks that the observation system and control system in smart grid may face, and then presents examples to illustrate the impact of such attacks. Following that, a cyber security intelligent defense system is proposed which will equip system operators a powerful tool to actively fight hackers and keep the power system secure and stable. The frame work and the implementation methodologies of this defense system are also presented.

关键词： state estimation control systems Power system stability Power measurement Power grids Computer viruses Computer viruses Power grids control systems Power measurement Defense systems Power system stability Network security state estimation Game theory observation system smart grids power systems frame work electricity company

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Design of A Game Theory Based Defense System for Power System Cyber Security

Design of A Game Theory Based Defense System for Power Syste...

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“紫金论电”2017智能电网保护和运行控制国际学术研讨会

作者： Ming Ni Rui Bo Jie Yan Anurag K Srivastava NARI Technology Inc. State Key Lab of Smart Grid Protection and ControlNanjing211106China Midcontinent Independent System Operator Minneapolis55221USA Washington State University PullmanWA99164USA

With numerous information and communication devices deployed in smart grid,cyber security becomes a big challenge faced by all power companies around the *** paper first introduces possible cyber-attacks that the observation system and control system in smart grid may face,and then presents examples to illustrate the impact of such *** that,a cyber security intelligent defense system is proposed which will equip system operators a powerful tool to actively fight hackers and keep the power system secure and *** frame work and the implementation methodologies of this defense system are also presented.

关键词： cyber security security defense system Stackelberg Competition Stochastic Game Game Theory

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Approach for Studying the Impact of Communication Failures on Power grid

Approach for Studying the Impact of Communication Failures o...

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IEEE Power and Energy Society General Meeting

作者： Yusheng Xue Ming Ni Wenjie Yu NARI Technology Inc. and State Key Laboratory of Smart Grid Protection and Control

ISBN: (纸本)9781509041695

In smart grid, a strong communication network plays a very important role, which makes the power grid more controllable and observable. It is a very tough task to study the mutual impact between these two systems due to their different characteristics. This paper proposes a generic and systematic approach for quantitatively studying the impact of communication failures on power grid's measurement and control functions. And an example is used to illustrate how to apply the approach in studying the impact of communication failure on a stability control system.

关键词： Communication failure Communication interruption Power system control Stability control system control system stability Power grids Power system control control function Communication Research networks(communications)

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