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Real-Time Simulation Technologies for power systems Design, Testing, and Analysis

IEEE power and Energy Technology systems Journal 2015年第2期2卷 63-73页

作者： Faruque, M.O. Strasser, T. Lauss, G. Jalili-Marandi, V. Forsyth, P. Dufour, C. Dinavahi, V. Monti, A. Kotsampopoulos, P. Martinez, J.A. Strunz, K. Saeedifard, M. Wang, X. Shearer, D. Paolone, M. Brandl, R. Matar, M. Davoudi, A. Iravani, R. Center for Advanced Power Systems Department of Electrical and Computer Engineering Florida State University TallahasseeFL32310 United States Electric Energy Systems-Energy Department AIT Austrian Institute of Technology Vienna1220 Austria OPAL-RT Technologies Inc. MontrealQCH3K 1G6 Canada RTDS Technologies Inc. WinnipegMBR3T 2E1 Canada University of Alberta EdmontonABT6G 2R3 Canada E.ON Energy Research Center Institute for Automation of Complex Power Systems RWTH Aachen University Aachen52062 Germany School of Electrical and Computer Engineering National Technical University of Athens Athens161 21 Greece Departament d'Enginyeria Elèctrica Universitat Politècnica de Catalunya Barcelona08034 Spain Fakultät Elektrotechnik und Informatik Technische Universität Berlin Berlin10587 Germany School of Electrical and Computer Engineering Georgia Institute of Technology AtlantaGA30332 United States Department of Electronics Carleton University OttawaONK1S 5B6 Canada ABB Power Systems Ludvika771 80 Sweden Swiss Federal Institute of Technology of Lausanne Lausanne1015 Switzerland Fraunhofer Institute for Wind Energy and Energy System Technology Kassel34119 Germany Centre of Applied Power Electronics University of Toronto TorontoONM5S 2J7 Canada Department of Electrical Power and Machines Ain Shams University Cairo11566 Egypt Department of Electrical Engineering University of Texas at Arlington ArlingtonTX76019 United States

This task force paper summarizes the state-of-the-art real-time digital simulation concepts and technologies that are used for the analysis, design, and testing of the electric power system and its apparatus. This paper highlights the main building blocks of the real-time simulator, i.e., hardware, software, input-output systems, modeling, and solution techniques, interfacing capabilities to external hardware and various applications. It covers the most commonly used real-time digital simulators in both industry and academia. A comprehensive list of the real-time simulators is provided in a tabular review. The objective of this paper is to summarize salient features of various real-time simulators, so that the reader can benefit from understanding the relevant technologies and their applications, which will be presented in a separate paper. © 2015 IEEE.

关键词： Real time systems

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An integrative study of home energy management for residential energy consumers

An integrative study of home energy management for residenti...

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IEEE International Conference on Cyber Technology in automation, Control, and Intelligent systems

作者： Dong Zhang Peng Zeng Yanyu Zhang Shuhui Li State Grid Tianjin Electric Power Research Institute Tianjin China Key Lab. of Networked Control System Chinese Academy of Sciences Shenyang China Department of Electrical & Computer Engineering University of Alabama Tuscaloosa AL USA

This paper studies how to optimize the energy usage of home appliances in the demand response framework from the consumer's perspective. The loads of major home appliances are divided into three categories: fixed loads, regulate-able loads, and deferrable loads. For efficient usage of the home appliances, an integrative optimization of the three category loads is needed. The paper investigates the relation of the integrative optimization and individual optimization of each category load. A regression-based learning strategy is employed to learn HAVC energy consumption model for development of more efficient DR policy. The study is conducted through an integrative computational experiment approach that combines a home energy simulator and MATlab together for demand response development and evaluation. The paper examines how the integrative demand response of the residential home appliances are affected by dynamic pricing tariffs, seasons, and weather. Case studies are conducted by considering home energy consumption, dynamic electricity pricing schemes, and demand response methods.

关键词： Home appliances Energy consumption Load modeling Optimization Load management Water heating Thermostats

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Network-coding-based distributed relay scheme for PLC networks

Network-coding-based distributed relay scheme for PLC networ...

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International Conference on ASIC

作者： Jiaan Dai Xiaofang Zhou Linshan Zhang Gerald E. Sobelman State Key Lab of ASIC & System Fudan University Shanghai China YunNan Electric Power Science Test Research Institute Group Co. Ltd Department of Electrical and Computer Engineering University of Minnesota Minneapolis MN USA

power Line Communication (PLC) is a communication technology that uses the existing distribution power grids for data transmission. Because of the high attenuation in the power line channel, transmission between two distant nodes must be done through relay technology. What's more, since strong noise exists in power grids the packet error rate may be high even when two nodes are close. This paper proposes a distributed relay scheme based on network coding that is designed for this high packet loss environment. Simulation results show that the proposed approach performs better than a fixed-path relay scheme in which only an end-to-end acknowledgement is enabled.

关键词： Relays Network coding Routing Low voltage Encoding Clustering algorithms Network topology

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Multi-objective particle swarm optimization for transient secure congestion management

Multi-objective particle swarm optimization for transient se...

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2012 11th International Conference on Environment and electrical engineering, EEEIC 2012

作者： Moslemi, Ramin Shayanfar, Heydar Ali Wng, Lingfeng Centre of Excellence for Power System Automation and Operation Iran University of Science and Technology Tehran Tehran Iran Department of Electrical Engineering and Computer Science University of Toledo Toledo OH 43606 United States

ISBN: (纸本)9781457718281

Congestion is a condition in power systems operation in which some transmission lines become fully loaded. This problem intervene considerable amount of extra cost and increase burdens of power market participants. To alleviate congestion, the operator of power system pays participants to modify their active power generation or consumer side demand. This change in operating point would put the power system in the peril and the stability margins would drop because of the increase in participation of critical generators and load demand. Considering security margins as secondary function could maintain power system from instability points by restraining participation of generators and demands. In this paper a multi-objective version of particle swarm optimization is employed to find Pareto solutions of novel secure congestion management in which congestion management cost and Corrected Transient Energy Margin are considered as two competing objective functions. The proposed method has been tested on the New-England power system to validate the efficacy of proposed method. © 2012 IEEE.

关键词： Costs

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Multi-objective particle swarm optimization for transient secure congestion management

Multi-objective particle swarm optimization for transient se...

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International Conference on Environment and electrical engineering (EEEIC)

作者： Ramin Moslemi Heydar Ali Shayanfar Lingfeng Wng Centre of Excellence for Power System Automation and Operation Iran University of Science and Technology Tehran Iran Department of Electrical Engineering and Computer Science University of Toledo Toledo OH USA

关键词： power system stability Transient analysis Generators Security Stability criteria

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Distributed power and rate allocation with fairness for cognitive radios in wireless ad hoc networks

Distributed power and rate allocation with fairness for cogn...

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54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011

作者： Guo, Songtao Zhang, Yunqiang Yang, Yuanyuan State Key Lab. of Power Transmission Equipment and System Security College of Computer Science Chongqing University Chongqing 400044 China Department of Electrical and Computer Engineering Stony Brook University Stony Brook NY 11794 United States

ISBN: (纸本)9781424492688

In this paper, we propose a distributed resource allocation framework for cognitive radio networks by using the orthogonal frequency division multiple access (OFDMA) modulation. We jointly consider the constraints of quality of service (QoS), maximum power, and minimum rates in the network to obtain optimal available subcarrier sets and transmission power. The fairness of resource allocation is guaranteed by incorporating the probability that a subcarrier is occupied into the link capacity expression. We present a distributed subcarrier selection and power allocation algorithm and evaluate the algorithm through simulations. Our results confirm that the proposed algorithm outperforms the existing algorithms in terms of throughput, the number of secondary links admitted, and the fairness of resource allocation. © 2011 IEEE.

关键词： Cognitive radio

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A low-cost time shared cell balancing technique for future lithium-ion battery storage system featuring regenerative energy distribution

A low-cost time shared cell balancing technique for future l...

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Annual IEEE Conference on Applied power Electronics Conference and Exposition (APEC)

作者： Abusaleh M. Imtiaz Faisal H. Khan Haresh Kamath Power Electronics and Automation Research Lab PEARL Department of Electrical and Computer Engineering University of Utah Salt Lake USA Electric Power Research Institute Inc. Palo Alto CA USA

A new cell voltage equalizer topology for future plug-in hybrid electric vehicles (PHEV) or renewable energy storage has been proposed in this paper. This topology has fewer components compared to the conventional topologies found in the literatures, and therefore, it could reduce cost and fabrication complexity. This new circuit is based on a time shared fly-back converter, and any number of series connected cells could be used in a string without any apparent issues. Each cell in a string shares this converter during its allocated time slot provided by the microcontroller. In addition, dynamic allocations of the time slots are possible to achieve faster cell balancing, and the circuit dynamically distributes depleted charge among cells in a regenerative fashion - ensuring a very high efficiency. The prototype of a four-cell lithium-ion battery balancer circuit was designed and implemented. Simulation and experimental results are presented to verify the operation of the new topology.

关键词： computer architecture Microprocessors Batteries Converters Topology Switches Capacitors

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Multicore simulation of an AC-radial Shipboard power system

Multicore simulation of an AC-radial Shipboard Power System

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IEEE General Meeting power& Energy Society

作者： F. M. Uriarte K. L. Butler-Purry Power System Automation Lab of the Electrical and Computer Engineering Department Texas A and M University College Station TX USA

This work presents an approach to parallelize the simulation of AC-Radial Shipboard power systems (SPSs) on multicore computers. Time domain simulations of SPSs are notoriously slow due to the order of SPSs and the presence of time-varying component models. A common approach to reduce simulation run-time is to partition power systems using Bergeron's travelling-wave model and to simulate the subsystems on a distributed computer. In this work a SPS is partitioned along cable capacitor loops using a diakoptics-based approach and the simulation conducted on a quad-core computer. A case study is presented that empirically determines a good number of SPS partitions for a multithreaded simulation, such that the speed gain is maximal and accuracy is preserved.

关键词： Computational modeling Capacitors Mathematical model Instruction sets Equations power systems Integrated circuit modeling

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A systematic gain setting method of the positive feedback anti-islanding scheme for inverter-based distributed generators

A systematic gain setting method of the positive feedback an...

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2010 International Conference on power system Technology: Technological Innovations Making power Grid Smarter, powerCON2010

作者： Wang, Xiaoyu Zhu, Shouzhen Yong, Jing Zheng, Jinghong Xu, Wilsun State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing 400044 China State Key Lab. of Power Systems Department of Electrical Engineering Tsinghua University Beijing 100084 China Department of Electrical and Computer Engineering University of Alberta Edmonton AB T6G 2V4 Canada

ISBN: (纸本)9781424459407

This paper proposes a systematic gain setting method for the positive feedback anti-islanding scheme which is designed to protect the interconnected inverter-based distributed generators (DGs) from islanding operation. Two main factors affecting the performance of the anti-islanding scheme are investigated when the positive feedback gain is tuned. One is the stability impact of the anti-islanding control on distributed generation (DG) systems and the other is the islanding detection time of the anti-islanding scheme. The small-signal model and the electromagnetic transient simulation model of an inverter-based DG system are developed to facilitate the realization of the proposed gain setting method. This method provides a practical and reliable tool for DG planning engineers. ©2010 IEEE.

关键词： Distributed power generation

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An approach to mitigate the impact of distributed generation on the Overcurrent Protection scheme for radial feeders

An approach to mitigate the impact of distributed generation...

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IEEE PES power systems Conference and Exposition, PSCE

作者： Hamed B. Funmilayo Karen L. Butler-Purry The Power System Automation Lab of the Electrical and Computer Engineering Department Texas A and M University College Station TX USA

Increased distributed generation (DG) presence on radial distribution feeders is becoming a common trend. The existing overcurrent protection (OCP) scheme on such feeders consists mainly of overcurrent protection devices (OCPDs) such as fuses and reclosers. When DG is placed on the remote end of a 3-phase lateral, the radial configuration of the feeder is lost. As a result, OCP issues may arise which lead to permanent outages even when the fault is temporary. This paper presents a new approach that revises the existing OCP scheme of a radial feeder to address the presence of DG. The fuses on the laterals with DGs are removed and multi-function recloser/relays (MFRs) are added to address three specific OCP issues; fuse fatigue, nuisance fuse blowing, and fuse misoperation. The new approach requires no communication medium, provides backup protection for the DG unit, and allows the remaining laterals to retain their existing protective devices. The results are reported using the IEEE 34 node radial test feeder to validate the new approach and the IEEE 123 node radial test feeder to generalize the approach. The new approach completely mitigated the fuse misoperation and nuisance fuse blowing issues and most of the fuse fatigue issues that were present on the radial test feeders.

关键词： Distributed control Fuses Testing Fatigue Substation protection Fault currents Equations Protective relaying power system protection Propagation losses

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