Results 131 to 140 of about 37,593 (308)

Reliability analysis of single-phase photovoltaic inverters with reactive power support [PDF]

, 2010
Reactive power support is expected to be an emerging ancillary requirement for single-phase photovoltaic (PV) inverters. This work assesses related reliability issues and focuses on the second stage or inversion process in PV inverters. Three PV inverter
Murray, Charles J.
core  

Low-Voltage Ride-Through Technology in Photovoltaic Power Generation

Highlights in Science, Engineering and Technology
As global photovoltaic (PV) integration surges, the ramifications of PV systems on the power grid have become increasingly pronounced. When faced with grid disturbances or faults, the abrupt disconnection of PV systems can critically imperil grid stability.
openaire   +1 more source

Low Voltage Ride Through Characterization of Wind Energy Conversion Systems

RE&PQJ
Low Voltage Ride Through (LVRT) has emerged as an essential requirement that system operators demand to wind energy conversion systems (WECS). LVRT characterization is to get the minimum grid voltage profile under which the transient stability of WECS is not possible. This paper will determine the LVRT capability of existing Egyptian WECS.
null Hamdy S. K. El-Goharey, null Mostafa I. Marei, null Mohamed G. S. zaghloul   +2 more
openaire   +1 more source

From Custom to Court: The Evolution of Mediation in European Legal Systems

Conflict Resolution Quarterly, EarlyView.
ABSTRACT This article traces how European mediation has repeatedly rebalanced three variables—(1) the source of mediator authority, (2) the degree of institutionalization, and (3) the operative meaning of voluntariness—from antiquity to the present. Using three periods—Proto‐Mediation (c. 500 BCE–c. 1750), Classical Mediation (c.
Viktoriia Hamaiunova
wiley   +1 more source

Enhanced Control Strategies for Improving Low Fault Ride-Through Capability of Grid-Connected Doubly Fed Induction Wind Turbines

Energies
The DFIG faces challenges in providing fast and accurate support during grid voltage fluctuations. Severe voltage dips can trigger peak currents, which may damage the converter equipment and even lead to the disconnection of turbines from the grid.
Yuanjia Yang, Man Gao, Zhenxiong Zhou
doaj   +1 more source

Designing Governance for ESG: Incentive and Oversight Complementarities in Corporate Sustainability Performance

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This study investigates how internal governance design supports credible ESG performance by distinguishing between Incentive and Oversight Architectures. Using 13,993 firm‐year observations of US nonfinancial firms from 2018 to 2024, we estimate fixed effects and two‐step system GMM models.
Beyza Gürel, Nehir Balci, Mustafa Reha Okur   +2 more
wiley   +1 more source

Experimental validation of the solid state substation with embedded energy storage concept [PDF]

This paper proposes the concept of integrating the energy storage within a Medium Voltage to Low Voltage solid state substation in order to provide new features compatible with the requirements from future more intelligent grids.
Asher, Greg, De, Dipankar, Klumpner, Christian, Kulsangcharoen, Ponggorn, Patel, Chintanbai, Rashed, Mohamed   +5 more
core  

Mechanisms and Advanced Characterizations for Urea Electrosynthesis

EcoEnergy, EarlyView.
In this review, various mechanisms and the advanced characterizations involved in urea electrosynthesis are summarized. Furthermore, the outlook on the future potential, the challenges, and scope of these techniques for developing the urea electrosynthesis route are discussed, paving the way for the green synthesis of urea and other important chemicals.
Chu Zhang, Liwei Guo, Shuangli Li, Zihan Chen, Chunshuang Yan, Chade Lv   +5 more
wiley   +1 more source

LVRT Strategy Considering Reactive Power Support and Fluctuating Power Suppression for Photovoltaic Application [PDF]

Radioengineering
Addressing the insufficient negative sequence dynamic reactive current support and power doubling oscillations present in conventional low-voltage ride through control mechanisms for photovoltaic inverters, this study designs a q-axis command for both ...
Z. Zhang, Q. Liu, Y. Wang
doaj  

Mixed‐Impurity Co‐Poisoning of NH3‐SCR Catalysts: Poisoning Mechanisms, Antagonistic Effects, and Anti‐Inactivation Strategies

EcoEnergy, EarlyView.
This review summarizes the synergistic effects of mixed impurities on ammonia‐selective catalytic reduction (NH3‐SCR) catalysts, including the poisoning mechanism of the catalyst caused by mixed impurities, the antagonistic effects between the impurities, and the research on the anti‐poisoning strategies for the catalyst in recent years.
Hongyan Xue, Manas Pal, Zhaoteng Xue, Dongsen Mao   +3 more
wiley   +1 more source