Results 91 to 100 of about 4,601 (250)

Modeling the limiting performance of resistive superconductor fault current limiters for 2G HTS tape

Firat University Journal of Experimental and Computational Engineering, 2022
Fault currents in power systems force valuable power system elements thermally, electro-dynamically and electromagnetically. Due to the increase in fault current levels, the installation of components resistant to fault currents and the damage of these ...
Muhsin Tunay Gençoğlu, Buğra Yılmaz
doaj  

Optimal overcurrent relay coordination: Balancing costs, time performance and generator placement in fault current limiter optimization

IET Generation, Transmission &Distribution, Volume 18, Issue 7, Page 1431-1448, April 2024.
This work investigates FCL cost minimization through the placement of the synchronous generator location within the network. This will be achieved by implementing JSO algorithm. Restoring the coordination through the FCLs without changing the directional over current relays settings is one goal of this work.
Ribin Mohamedshareef, Mehdi Abapour, Seyed Hossein Hosseini, Heresh Seyedi   +3 more
wiley   +1 more source

System configuration, fault detection, location, isolation and restoration: a review on LVDC Microgrid protections [PDF]

, 2019
Low voltage direct current (LVDC) distribution has gained the significant interest of research due to the advancements in power conversion technologies. However, the use of converters has given rise to several technical issues regarding their protections
Bououden, Burt, Callavik, Dong Chen, Mitchell, Mohamed Emad Farrag, Oudalov, Waqas Javed, Wu, Xue, Yan Xu, Zhong   +11 more
core   +1 more source

The recent development of protection coordination schemes based on inverse of AC microgrid: A review

IET Generation, Transmission &Distribution, Volume 18, Issue 1, Page 1-23, January 2024.
The traditional OCR faced many protection performance challenges and miss‐coordination events due to the high DG penetration. Therefore, the main goal of using the voltage value that the relay discovers is to offer reliable relay coordination under high DG penetration.
Feras Alasali, Haytham Mustafa, Abdelaziz Salah Saidi, Naser El‐Naily, Salima Abeid, William Holderbaum, Emad Omran, Saad M. Saad   +7 more
wiley   +1 more source

Microfinance In Nepal: Determinants of Viability, Sustainability and Outreach among Grameen, NGO, and Cooperative Microfinance Institutions [PDF]

Nepal is one of the poorest countries in the world, with 70% of its population below the poverty line. Subsidized national poverty lending programs have failed to attain viability, mobilize savings and reach the poor in significant numbers.
Dhungel, Dipak, Pant, Harihar Dev, Seibel, Hans Dieter   +2 more
core  

Impact of distributed PV generation on relay coordination and power quality [PDF]

, 2019
Distributed generation (DG) has gained popularity among electricity end users who are determined to contribute to a cleaner environment by conforming to green and sustainable energy sources for various daily needs. The power system impact of such trends (
Akmal, Muhammad, Al-Naemi, Faris, Al-Tarabsheh, Anas, Iqbal, Nusrat, Meegahapola, Lasantha   +4 more
core   +1 more source

Enhancing FRT performance and smoothing output power of DFIG wind farm equipped by SFCL and SMES in a fuzzy framework

Engineering Science and Technology, an International Journal, 2019
Wind farms equipped by Doubly-Fed Induction Generators (DFIG) should have two capabilities so that system operators can efficiently utilizes them. These capabilities include Fault-Ride-Through (FRT) and smoothing the output active power fluctuations ...
Mostafa Sedighizadeh, Hesam Yarmohammadi, Masoud Esmaili   +2 more
doaj   +1 more source

A Novel Transient Analysis of Multiterminal VSC‐HVDC System Incorporating Superconducting Fault Current Limiter

International Transactions on Electrical Energy Systems, Volume 2024, Issue 1, 2024.
Power transmission using a voltage source converter‐ (VSC‐) based high‐voltage direct current (HVDC) system offers autonomous control of real and reactive power, constant DC voltage polarity, and bidirectional power flow. This helps to realize the multiterminal VSC‐HVDC system and its integration into renewable energy sources to meet the growing power ...
Wajid Ahmed, Premila Manohar, C. H. Hussaian Basha, Manohar Mishra   +3 more
wiley   +1 more source

Transforming an Unsustainable Project into Sustainable Rural Financial Institutions: The Case of the Small Farmer Co-operatives Ltd. (SFCLs) in Nepal [PDF]

, 2001
Over the last decade, Nepal has turned into a microfinance laboratory, exploring various approaches to provide financial services to the rural poor, both in the hill and plain areas of the country.
Shakya, Roshan, Wehnert, Ulrich
core  

Influence of Shunt Branch on the Current Limiting and Recovery Performance of Variable Resistance SFCL

IEEE Access
With the continuous development of power grid, the high short-circuit threatens the stability of the power system. The short-circuit exceeds the disconnection capacity of the circuit breaker and has a negative impact on the integrity and stability of the
Duanjiao Li, Bin Xiang, Congwei Yao, Qi Zhang, Xiaofeng Pang, Wenxing Sun, Haiyun Tang, Xue Zhang, Zhongbin Yuan, Linglong Cai   +9 more
doaj   +1 more source