دانلود و نمایش مقالات مرتبط با افزایش امنیت سیستم::صفحه 1
بلافاصله پس از پرداخت دانلود کنید

با سلام خدمت کاربران در صورتی که با خطای سیستم پرداخت بانکی مواجه شدید از طریق کارت به کارت (6037997535328901 بانک ملی ناصر خنجری ) مقاله خود را دریافت کنید (تا مشکل رفع گردد). 

نتیجه جستجو - افزایش امنیت سیستم

تعداد مقالات یافته شده: 2
ردیف عنوان نوع
1 Optimal allocation of multi-type FACTS devices and its effect in enhancing system security using BBO, WIPSO & PSO
تخصیص بهینه بوسیله دستگاه های چند منظوره FACTS و تاثیر آن در افزایش امنیت سیستم با استفاده از BBO، WIPSO و PSO-2017
FACTS devices play a vital role in improving the static as well as dynamic performance of the power systems. However the type, location and rating of the FACTS devices play a major role in deciding the extent to which the objective of improving the system performance is achieved in a cost effective manner. In this work an objective function comprising of cost, line loadings and load voltage deviations is proposed to tap maximum benefits out of their installation and the weights assigned to them decide their relative importance. The impact of installing TCSC, SVC, TCSC-SVC and UPFC in minimizing the formulated objective has been analyzed in enhancing security, under increased system loading conditions.© 2017 Electronics Research Institute (ERI). Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keywords: FACTS devices | PSO | WIPSO | BBO | Enhance system security | Optimal placement
مقاله انگلیسی
2 A chaos-oriented prediction and suppression model to enhance the security for cyber physical power systems
مدل پیش بینی و سرکوب بی نظمی برای افزایش امنیت سیستم های قدرت فیزیکی سایبری-2017
Article history:Received 31 May 2016 Received in revised form 9 November 2016Accepted 30 November 2016Available online 13 December 2016Keywords:Cyber-physical power system Voltage source inverters Pulse width modulation Chaos predictionChaos suppressionSmart grid has become a fully automated system with common use of electronic equipments to control, compute and communicate. This can be modeled as cyber physical power systems (CPPS) to analyze connec- tions and interactions, and security is one of the key factors to find the inner unmanaged vulnerabilities. In some cases, voltage source inverters (VSI) with pulse width modulation (PWM) are sensitive to initial conditions, and this is a typical chaotic state. In this paper, we present a CPPS model with the improved chaos prediction and suppression methods to enhance the security with the abilities to avoid and elimi- nate chaos. The main process is ‘‘prediction–quantization–control’’. First, an improved maximum velocity criterion method is used to predict the possibility of chaos in the parameter space of CPPS. Second, when a possibility of chaos is predicted, a sinusoidal wave frequency modulation is used to suppress chaos. To analyze the connections of the inner entities’ transmission, a security coefficient is introduced to obtain hazard perception and to express measurements quantitatively. Third, it has proposed a chaotic control algorithm based on a fuzzy model with closed-loop dynamic mechanism to solve the security coefficient effectively. The experiments prove the predicted result has a margin of error of plus or minus 10%, and the sinusoidal wave frequency modulation can avoid chaos on CPPS. Also, the results show that secu- rity coefficient increases by 13.89%, which means it is useful with sensitive parameters and other related disturbances. Overall, this CPPS model can eliminate potential chaos phenomena caused by inversion pro- cesses, and it can be used into smart grids to improve the security effectively.© 2016 Elsevier Inc. All rights reserved.
Keywords:Cyber-physical power system | Voltage source inverters | Pulse width modulation | Chaos prediction | Chaos suppression
مقاله انگلیسی
rss مقالات ترجمه شده rss مقالات انگلیسی rss کتاب های انگلیسی rss مقالات آموزشی
logo-samandehi
بازدید امروز: 1607 :::::::: بازدید دیروز: 0 :::::::: بازدید کل: 1607 :::::::: افراد آنلاین: 59