Results 21 to 30 of about 7,259 (258)

A Simple Operation Approach for Modular Multilevel Converter Under Grid Voltage Swell in Medium-Voltage Microgrids

IEEE Access, 2019
Modular multilevel converter (MMC) is drawing more and more attention in medium-voltage microgrid applications. Large-scale switching-off loads and grid faults may lead to the voltage swell in microgrid, where MMC should have the ride-through ability. In
Qian Xiao, Yu Jin, Linglin Chen, Xiaodan Yu, Hongjie Jia, Huiqiao Liu, Remus Teodorescu, Frede Blaabjerg   +7 more
doaj   +1 more source

Control of transformerless T-type DVR using multiple delayed signal cancellation PLL under unbalanced and distorted grid condition

Engineering Science and Technology, an International Journal, 2021
In the near future, the power system network may experience severe voltage distortions due to association of renewable energy sources (RES), and the large penetration of power electronic based loads into the microgrid.
Kodari Rajkumar, P. Parthiban, Nalla Lokesh   +2 more
doaj   +1 more source

Development of Generalised Integrator with a Feedback Loop Based Dynamic Voltage Restorer for Fast Mitigation of Voltage Sag/Swell

Covenant Journal of Engineering Technology, 2023
Power-electronic converter-based device called the Dynamic Voltage Restorer (DVR) is intended to shield delicate loads from supply-side voltage perturbations. It is connected in series to the distribution feeder and has the ability to generate or absorb
Ibrahim Baba, Yusuf Jibril, Boyi Jimoh, Ibrahim Abdulwahab, Abdulrahman Olaniyan   +4 more
doaj  

Compensation of Sag and Swell Voltage by using Dynamic Voltage Restorer [PDF]

International Journal of Trend in Scientific Research and Development, 2019
The increase use of modern sensitive and sophisticated loads connected to distribution system causes various problems to the system. The major problems are voltage sag and swell, there is need to compensate it .Today most of the distribution companies are using power semiconductor based devices for improving power quality.
Diksha Wasnik, Prof Radharaman Shaha, Pratik Ghutke   +2 more
openaire   +1 more source

Voltage Quality Enhancement in Microgrid Through Customized Synchronous Reference Frame Theory Based Upgraded Dynamic Voltage Restorer

Pakistan Journal of Engineering & Technology, 2020
Microgrid (MG) offers an elaborate list of solutions to solve the common problems associated with local distribution systems. These problems are mainly reliability issues.
Ayesha Ayoub , Muhammad Siddique , Ahsan Iqbal , Hassan Ali   +3 more
doaj   +5 more sources

Design of reduced switch count multi-level inverter based electric spring for critical load voltage stability

Energy Reports, 2023
This paper presents Transistor Clamped H-Bridge (TCHB) inverter-based Electric Spring (ES), a demand side management device that enhances the voltage stability of the critical load connected to the grid through Renewable Energy Sources (RES).
B.V.S. Raghava, R.J. Satputaley, S. Manmadha Rao   +2 more
doaj   +1 more source

Compensation of Sag and Swell Voltage by Using Dynamic Voltage Restorer

INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT, 2022
There is an introduction to the dynamic voltage restorer in this paper that discusses voltage sags and swell. Also, it is about the compensation of voltage sag and swells. The power quality requirement is one of the most important issues. The power quality problem includes voltage sag, swell, notch, spike, transient, etc.
openaire   +1 more source

A new voltage control strategy to improve performance of DSTATCOM in electric grid

CES Transactions on Electrical Machines and Systems, 2020
A new voltage control strategy of distribution static compensator (DSTATCOM) has been proposed in this paper for electric grid applications. The proposed control scheme combines two methods of DSTATCOM operation to improve its performance.
Chandan Kumar, Mahesh K. Mishra, Saad Mekhilef   +2 more
doaj   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source