نتایج جستجو برای: high voltage power lines

تعداد نتایج: 2653155  

Journal: :Energies 2021

The growing interest in the negative environmental impact of overhead power lines high and extra-high voltage stems from increasing ecological awareness societies. Consequently, a number respective legal restrictions have been issued actions undertaken to reduce this impact, especially electric field frequency. aim paper is analyze possibilities reducing width influence zones by changing design...

Journal: :Remote Sensing 2023

As the scale of power grid continues to expand, human-based inspection method struggles meet needs efficient operation and maintenance. Currently, existing UAV system in market generally has short endurance time, high flight requirements, low degree autonomous flight, accuracy intelligent identification, slow generation reports, other problems. In view these shortcomings, this paper designs an ...

2012
Spyros CHATZIVASILEIADIS Thilo KRAUSE Göran ANDERSSON

The paper proposes a security-constrained optimal power flow algorithm (SC-OPF) which allows the post-contingency control of High Voltage Direct Current lines, based on the Voltage Source technology (VSC-HVDC). The presented algorithm integrates corrective actions of HVDC lines in a single optimization problem, without the need to solve a detailed power flow or OPF for each contingency. The app...

2016
Wafa Tourab Abdesselam Babouri

BACKGROUND This work presents an experimental and modeling study of the electromagnetic environment in the vicinity of a high voltage substation located in eastern Algeria (Annaba city) specified with a very high population density. The effects of electromagnetic fields emanating from the coupled multi-lines high voltage power systems (MLHV) on the health of the workers and people living in pro...

Journal: :international journal of smart electrical engineering 2015
sadegh etemad nasser mozayani

the use of renewable energy in power generation and sudden changes in load and fault in power transmission lines  may cause a voltage drop in the system and challenge the reliability of the system. one way to compensate the changing nature of renewable energies in the short term without the need to disconnect loads or turn on other plants, is the use of renewable energy storage. the use of ener...

Voltage stability is one of the most important factors in maintaining reliable operation of power systems. When a disturbance occurs in the power system, it usually causes instabilities and sometimes leads to voltage collapse (VC). To avoid such problems, a novel approach called Vector Analysis (VA) is proposed that exploits a new instability detection index to provide wide area voltage stabili...

Reactive power dispatch for voltage profile modification has been of interest Abstract to powerr utilities. Usually local bus voltages can be altered by changing generator voltages, reactive shunts, ULTC transformers and SVCs. Determination of optimum values for control parameters, however, is not simple for modern power system networks. Heuristic and rather intelligent algorithms have to be so...

2004
Mat Darveniza Tapan K Saha

In the information technology age, users of electricity services require both better reliability (fewer interruptions of supply) and better power quality (fewer disturbances, particularly voltage sags). The paper shows that the best way to reduce the frequency of interruptions and voltage sags is to reduce the number of faults on the distribution utility’s low voltage and high voltage lines. Mo...

ژورنال: :international journal of electrical and electronics engineering 0
hassan faraji baghtash ahmad ayatollahiii khalil monfaredi

a novel ultra-high compliance, low power, very accurate and high output impedance current output stage (cos) with extremely high output current drive capability is proposed in this paper. the principle of operation of this unique structure is discussed, its most important formulas are derived and its outstanding performance is verified by hspice simulation in tsmc 0.18µm cmos, bsim3, and level4...

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