Results 61 to 70 of about 1,303 (282)

Three-stage commutation failure suppression strategy based on safe commutation boundary and predictive control model

International Journal of Electrical Power & Energy Systems
HVDC systems are vulnerable to commutation failure due to insufficient commutation margin during AC faults, which threatens system stability. Existing optimization strategies are often computationally complex and heavily reliant on simulation models ...
Tongtong Zhang, Shuqing Zhang
doaj   +1 more source

A fault current limiting approach for commutation failure prevention in LCC-HVDC transmission systems

, 2019
Commutation failure is one of the most frequent failures in line-commutated converter based high-voltage direct-current (LCC-HVdc) systems which may lead to the outage of HVdc links, and thus affect the performance of the power system.
Mat Said, Dalila, Mirsaeidi, Sohrab, Dong, Xinzhou   +2 more
core   +1 more source

Commutation Failure Prediction for Multi-Infeed LCC-HVDC Systems Under Asymmetrical Faults

, 2023
Commutation failure (CF) occurs frequently under inverter AC system faults. Around 70% of power system faults are Single-Line-to-Ground (SLG) faults that affect not only magnitudes but also phase angles of non-faulty phases.
Chunyan Cui, Zhang, Xiao-Ping; id_orcid, Nan Chen, Chen, Nan; id_orcid, Li, Lanfang, Xue, Ying; id_orcid, Ying Xue, Cui, Chunyan, Xiao-Ping Zhang, Yuefeng Yang, Yang, Yuefeng, Lanfang Li   +11 more
core   +1 more source

A Social Entrepreneurship Perspective of De‐Carbonising the Footprint through Recycling Compensation: A Case Study of the NGO Madre Coraje

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyses the carbon footprint of the NGO Madre Coraje, using an integrated methodology that combines the calculator provided by REAS (Red de Economía Alternativa y Solidaria) Navarra and the Life Cycle Assessment (LCA). It quantifies emissions across the three scopes of the Greenhouse Gas Protocol, evaluating both direct and ...
José Fernandez‐Serrano, Juan A. Hueso, Orlando Vega‐Galeano   +2 more
wiley   +1 more source

Green Human Resource Management (GHRM) and Environment Social Governance (ESG): A Systematic Literature Review

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper presents a systematic literature review exploring the intersection of Green Human Resource Management (GHRM) and Environmental, Social, and Governance (ESG) criteria. The study synthesizes current research, identifies prevailing trends, and highlights gaps within this emerging field.
Zile Huma, Emma Garcia Meca, Jennifer Martínez‐Ferrero, Nazim Hussain   +3 more
wiley   +1 more source

Scope 3 Carbon Emissions Assessment for Manufacturing SMEs

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This paper addresses the challenges facing managers of Small‐ and Medium‐Size Enterprises (SMEs) when conducting environmental sustainability assessment at the value chain level, particularly Scope 3 Greenhouse Gases (GHG) emissions. The paper investigates issues related to data availability and data quality for Scope 3 assessment and ...
Kourosh Halat, Stephen Childe, Nick Golding, John Summerscales   +3 more
wiley   +1 more source

An Artificial Neural Network Based Strategy for Commutation Failure Forecasting in LCC-HVDC Transmission Networks

, 2023
Commutation failure (CF) is a major challenge associated with line-commutated converter high voltage dc (LCC-HVdc) systems. Faults at the inverter ac systems are regarded as main cause of commutation failure.
Kimia Ghaffari (10332005), Jinghan He (6458033), Kashem M Muttaqi (13589731), Sohrab Mirsaeidi (20257917), Dalila Mat Said (12413386), Fuxiang Shang (20260779)   +5 more
core  

Social Accounting for Work‐Related Injuries: Towards a Sustainable Management of Social Externalities

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The present study seeks to advance the understanding of the determinants of occupational injuries, thereby enhancing both academic knowledge and decision‐making in the management and implementation of occupational health and safety measures.
Rosa María Cañaveras Perea, Ángel Tejada Ponce, María Pilar Sánchez González   +2 more
wiley   +1 more source

Studyonthe CommutationFailureinMulti-infeedHVDCSystem

工程科学与技术, 2014
:Because the accuracy of the traditional minimum voltage drop method used to commutation failure is not high enough, a new commutation failure criterion was proposed.
肖俊, 李兴源, 张英敏, 林桥
doaj  

Reduction of commutation failure frequency in HVDC transmission systems by means of an improved solid-state fault current limiter [PDF]

, 2020
In the recent decade, High Voltage Direct Current (HVDC) technology has become the preferred option for bulk power transmission due to its numerous advantages such as lower losses and less space requirements compared to High Voltage Alternating Current ...
Liu, Hanzhang, Mat Said, Dalila, Jinghan He, He, Jinghan, Sohrab Mirsaeidi, Dimitrios Tzelepis, Tzelepis, Dimitrios, Mirsaeidi, Sohrab, Hanzhang Liu, Dalila Mat Said   +9 more
core   +1 more source