Results 21 to 30 of about 603 (139)

A Single‐Stage SPV‐Fed Reduced Switching Inverter‐Based Sensorless Speed Control of IM for Water Pumping Applications

open access: yesInternational Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022
This article elaborates on a reduced switch count‐based inverter for a single‐stage solar photovoltaic (SPV) fed induction motor (IM) with sensorless speed control for water pumping applications. The traditional SPV‐fed IM for water pumping applications requires a six‐switch voltage source inverter (SSVSI) for transforming the DC power from the SPV ...
Ankireddy Narendra   +5 more
wiley   +1 more source

Static Voltage Stability Assessment of the Kenyan Power Network

open access: yesJournal of Electrical and Computer Engineering, Volume 2021, Issue 1, 2021., 2021
In recent years, the Kenyan Power Network has witnessed large growths in load demand. Although the increased load demand has somewhat been matched with an increase in transmission and generation capacity, the rate of expansion has not been matched with the rate of increase in load demand due to economic, environmental, and geographical constraints ...
Ombuki Mogaka   +3 more
wiley   +1 more source

GA based optimal planning of VAR sources using Fast Voltage Stability Index method

open access: yesArchives of Electrical Engineering, 2016
This paper presents a novel approach for reactive power planning of a connected power network. Reactive power planning is nothing but the optimal usage of all reactive power sources i.e., transformer tap setting arrangements, reactive generations of ...
Bhattacharyya Biplab   +3 more
doaj   +1 more source

A Review of Data‐Driven Short‐Term Voltage Stability Assessment of Power Systems: Concept, Principle, and Challenges

open access: yesMathematical Problems in Engineering, Volume 2021, Issue 1, 2021., 2021
With the rapid growth of power market reform and power demand, the power transmission capacity of a power grid is approaching its limit and the secure and stable operation of power systems becomes increasingly important. In particular, in modern power grids, the proportion of dynamic loads with fast recovery characteristics such as air conditioners ...
Jiting Cao   +3 more
wiley   +1 more source

Phenolic compounds and carotenoids amounts on guava epicarp injury, 'girdling' [PDF]

open access: yes, 2011
A anomalia do epicarpo da goiaba, comumente relatada por agricultores e técnicos como o "anelamento juvenil da goiaba", tem causado preocupação devido à desinformação sobre o assunto.
FURLAN, Claudia Maria   +3 more
core   +2 more sources

Stability Analysis of a Line Voltage using FACTS Devices [PDF]

open access: yesE3S Web of Conferences
The analysis of voltage stability in power system networks is outlined in this document. The Fast Voltage Stability Index (FVSI) is employed to evaluate the condition of the power lines under both normal and critical load situations.
Ezhilarasan G.   +3 more
doaj   +1 more source

Power system optimization approach to mitigate voltage instability issues: A review

open access: yesCogent Engineering, 2023
Voltage instability is a major challenge facing power system (PS) that has affected some organizations in achieving their desired goals. Therefore, voltage instability is the incapability of the PS to maintain the voltage standard under no disturbance ...
Samson Ademola Adegoke, Yanxia Sun
doaj   +1 more source

Application of FVSI, Lmn and CPF Techniques for Proper Positioning of FACTS Devices and SCIG Wind Turbine Integrated to a Distributed Network for Voltage Stability Enhancement [PDF]

open access: yesEngineering, Technology & Applied Science Research, 2019
Induction power generators are the most popular wind energy conversion systems (WECS) because they do not require synchronization units. However, they usually draw a huge quantity of reactive power during disturbances. Hence, incorporating wind power into power networks may cause voltage instability.
Shaheer Hashim Eisa Osman   +2 more
openaire   +1 more source

Utilizing Unified Power Flow Controller for Voltage Stability Improvement of the Electric Power Transmission System of Ghana

open access: yesJurnal Nasional Teknik Elektro, 2020
Interconnecting power transmission systems provide reliability of electric power supply. The security of the system is however questioned when a disturbance in any part of the interconnected system causes instability in the entire network. Unified Power
William Duodu Asihene   +2 more
doaj   +1 more source

Optimisation of the squeeze forming process [PDF]

open access: yes, 2006
This thesis presents the optimisation of the squeeze forming process, considering both the thermal and mechanical aspects. The Finite Element Method has been used to simulate the process and a Genetic Algorithm was used as an optimisation tool. The
Ahmad, Rosli
core   +1 more source

Home - About - Disclaimer - Privacy