نتایج جستجو برای: intelligent protection

تعداد نتایج: 254231  

With the development of critical loads, power quality problem has become particularly important and poor power quality will be cause many adverse effects and the cost of many deaths will follow. To improve power quality and protection of sensitive loads against grid disturbances have been used new equipment based on power electronics similar FACTs devices, they are Custom Power. One of the most...

2014
A. C. Adewole R. Tzoneva

IEC 61850-9-2 is an international substation automation standard that proposes a Process Bus communication network between process level equipment and bay level Intelligent Electronic Devices (IEDs) used for power systems protection and control. This paper considers the drive towards the use of IEC 61850-9-2 Process Bus in substations. The impact of the IEC 61850-9-2 standard on the operating p...

In this paper, an efficient and comprehensive hybrid intelligent technique for the optimal placement of phasor measurement units (PMUs) is proposed to minimize the number of PMU installation subjected to full network observability. Three main purposes of PMUs output synchronous measurements are monitoring, control, and protection of power system. We have combined Binary Imperialistic Competitio...

Journal: :Bioresources 2023

Active and intelligent packaging production helps to improve the food value chain, granting reliability consumers. According these two premises, concepts were born. Sustainability protection criteria are fundamental aspects that can be achieved with wood components.

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1389

the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...

Journal: :Advances in computer, signals and systems 2023

With the in-depth development of environmental protection concept and smart campus, intelligent campus has become an important issue. Through analysis existing research platform cases, this paper proposes architecture functional modules old colleges universities based on protection, including article information release, material recycling resource reuse. At same time, by analyzing challenges f...

Journal: :Appl. Soft Comput. 2012
Mohammad Lutfi Othman Ishak Aris Mohammad Ridzal Othman Hairussaleh Osman

Nowadays protection engineers are suffering from very complex implementations of protection system analysis due to massive quantities of inconsistent data, let alone coming from diverse intelligent electronic devices (IEDs). Thus, a novel Rough-Set-based data mining strategy has been formulated to resolve the inconsistency in a distance protective relay’s decision system (i.e. a transformed rel...

2002
C. R. OZANSOY A. ZAYEGH A. KALAM

In the past decade, new communications schemes have been designed and retrofitted into the substations by the utilities to integrate data from relays and Intelligent Electronic Devices (IEDs) and capitalize on the protection, control, metering, fault recording, communication functions available in digital devices. A modern power system is one of the largest complexes constructed and operated bo...

Journal: :Frontiers in Energy Research 2023

Series-compensated transmission lines (SCTLs) are increasingly preferred for transmitting bulk amounts of electricity generated from the present-day large-scale wind farm to utility grid due several technical and economic benefits. However, when a fault occurs in such farm-integrated SCTL, impedance across metal oxide varistor (MOV)-protected series capacitor varies non-linearly. Also, current ...

Journal: :IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2023

Meteorological radar data is essential for meteorological monitoring, forecasting, and research, it plays a crucial role in observing warning of extreme weather risks. However, radars have some limitations, such as uneven distribution severe topographical influence. remote sensing satellites can partially overcome these limitations by providing larger observational scope high spatial temporal r...

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