نتایج جستجو برای: pmu placement

تعداد نتایج: 76291  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده مهندسی برق و کامپیوتر 1393

در این پایان نامه ابتدا به معرفی واحد اندازه گیری فازور که به نوعی نقش حفاظت و کنترل سیستم قدرت را ایفا می کند، پرداخته شده است. سپس مسئله بهینه سازی تعداد واحدهای اندازه گیر فازور (pmu ) به همراه جایابی بهینه آنها در شین های یک سیستم قدرت مورد مطالعه و بررسی قرار می گیرد. به منظور حل مسئله بهینه سازی، از روش هایilp ، شاخه ، شاخه و حد معمولی و شاخه و حد بهبودیافته استفاده شده است. در ادامه، حل ...

Journal: :CoRR 2014
Deepjyoti Deka Ross Baldick Sriram Vishwanath

Real time operation of the power grid and synchronism of its different elements require accurate estimation of its state variables. Errors in state estimation will lead to sub-optimal Optimal Power Flow (OPF) solutions and subsequent increase in the price of electricity in the market or, potentially overload and create line outages. This paper studies hidden data attacks on power systems by an ...

2016
Jyoti Paudel Elham B. Makram Elham Makram

In recent years, there has been growing interest of synchrophasor measurements like Phasor Measurement Units (PMUs) Power systems are now being gradually populated by PMU since they provide significant phasor information for the protection and control of power systems during normal and abnormal situations. There are several applications of PMUs, out of which state estimation is a widely used. T...

Journal: :journal of computer and robotics 0
ali jahanian department of electrical and computer engineering, shahid beheshti university, g. c., tehran, iran morteza saheb zamani it and computer engineering department, amirkabir university of technology, tehran, iran

modern integrated circuits consist of millions of standard cells and routing paths. in nano-scale designs, mis-prediction is a dominant problem that may diminish the quality of physical design algorithms or even result in the disruption of the convergence of the design cycle. in this paper, a new planning methodology is presented in which a master-plan of the chip is constructed at the early le...

2001
Joe-Air Jiang Ying-Hong Lin Jun-Zhe Yang Chih-Wen Liu

Part I of this paper set sets forth theory and algorithms for adaptive fault detection/location technique, which is based on Phasor Measurement Unit (PMU). This paper is Part II of this paper set. A new timing device named “Global Synchronism Clock Generator, GSCG” including its hardware and software design is described in this paper. Experimental results show that the synchronized error of ris...

Journal: :Perspectives in Science 2016

2015
Chetan Mishra Kevin D. Jones Anamitra Pal Virgilio A. Centeno

Phasor measurement units (PMUs) play an important role in the wide-area monitoring and protection of modern power systems. Historically, their deployment was limited by the prohibitive cost of the device itself. Therefore, the objective of the conventional optimal PMU placement problem was to find minimum number of devices, which when carefully placed throughout the network, maximised observabi...

2013
Mohd Rihan Mukhtar Ahmad M. Salim Beg

Phasor measurement units (PMUs) are being deployed by the utilities in their power networks throughout the world for better monitoring of dynamic operating conditions. Installation of a sufficient number of PMUs will convert the nonlinear iterative state estimation problem into a linear non iterat ive state measurement problem. However the power networks are huge networks and this minimum numbe...

Journal: :Buildings 2022

Mock-up simulation is a design or human factor research method to help designers identify key issues and factors of product environment. This paper discusses physical mock-up (PMU) digital (DMU) applications in healthcare building development through narrative literature review. The following questions are addressed this paper: what would the purposes using PMU DMU simulations be? At which phas...

در این مقاله روشی جدید براساس استفاده از داده های PMU برای تشخیص نوسان توان و جلوگیری از عملکرد ناصحیح رله های دیستانس ارائه شده است. نوسان توان همیشه یکی از مسائل مهم در پایداری شبکه های قدرت بوده است. در سال های اخیر بدلیل بزرگتر شدن شبکه های قدرت و عملی شدن بازار برق، نوسان توان های بزرگی در شبکه های مختلف در سراسر جهان رخ داده است که باعث بروز خاموشی هایی بزرگ شده اند. با ورود تجهیزات جدید...

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