Results 11 to 20 of about 45,404 (267)

Techno-Economic Comparisons of HVAC and Simultaneous AC-DC Transmission

Journal of Electrical and Computer Engineering, 2022
Electric power consumption has been increasing rapidly across the globe; this increase specially accelerated in the last decade. Consequently, existing transmission lines are becoming overloaded beyond their power transfer capability.
Lijalem Dires Asmare, Belachew Bantyirga Gessesse, Elias Mandefro Getie   +2 more
doaj   +1 more source

Studies of large‐scale DC connected photovoltaic power system based on multi‐modular cascaded DC‐DC converter

IET Generation, Transmission & Distribution, 2023
DC collection and transmission is one of the major development directions of large‐scale photovoltaic (PV) power system. In order to achieve low‐cost, high‐efficiency and long‐distance transmission of PV power, this paper adopted a DC grid‐connected ...
Fei Liu, Yushuo Chen, Jian Shi, Lu Qu, Zhenning Zi, Zhanqing Yu   +5 more
doaj   +1 more source

DC blocking criterion and measure calculation method for VSC-HVDC grid of ring structure

电力工程技术, 2022
In the past, the structures of conventional direct current (DC) and flexible DC transmission projects were end-to-end or multi-terminal radiation. The corresponding stability control system uses the converter electric quantity and pole emergency switch ...
XU Ke, LIU Yimin, ZHENG Shaoming, BAI Yang, ZHU Wan, REN Zuyi   +5 more
doaj   +1 more source

Multilink DC transmission for offshore Wind Power integration

2012 IEEE International Symposium on Industrial Electronics, 2012
The High Voltage Direct Current (HVDC) system gains much more flexibility on a basis of multi terminal operation. Having extra converters brings also new ideas in sharing the active power and one of the solutions is the use of virtual impedance correlated with a droop controller.
Bogdan-Ionut Craciun, Rodrigo da Silva, Remus Teodorescu, Pedro Rodríguez   +3 more
openaire   +3 more sources

A Mixed-Integer Second-Order Cone Programming Algorithm for the Optimal Power Distribution of AC-DC Parallel Transmission Channels

Energies, 2019
For the controllability of the transmission power of DC transmission channels, the optimal power distribution (OPD) of AC-DC parallel transmission channels is an effective measure for improving the economic operation of an AC-DC interconnected power grid.
Shunjiang Lin, Zhibin Yang, Guansheng Fan, Mingbo Liu, Sen He, Zhiqiang Tang, Yunong Song   +6 more
doaj   +1 more source

Quantifying magnetic degradation in laser-cut electrical steel: A domain-level study with angle-dependent magnetization [PDF]

AIP Advances
Laser cutting is an accurate and popular manufacturing process as it is largely employed in most industries in cutting and shaping materials, including electrical steel parts.
Rawal Shahbaz, Changgeng Zhang, Hina Fatima, Hao Zhang, Yan Zhang   +4 more
doaj   +1 more source

Influence of AC fault at sending end on receiving-end networks of large-scale AC/DC hybrid power grid

Zhejiang dianli, 2022
In order to meet the need for large-scale transmission of new energy consumption across regions， China has built and put into operation several conventional DC， UHVDC and flexible DC transmission projects and has realized asynchronous interconnection ...
SUN Tianjia, LIU Haiyang
doaj   +1 more source

Influence Research on Induced Voltage of Multi UHVDC Transmission Lines to the Power Line Under Construction in the Same Corridor

南方能源建设, 2019
[Introduction] Multi power transmission lines arranged in the same corridor could avoid the land division and reduce the adverse effect on the local planning and development, but the personal safety of operators in the process of towers and conductors ...
LI Biao, ZHANG Jie, YU Lei, WANG Jingyi, WANG Yandong   +4 more
doaj   +1 more source

Review on DC transmission systems for integrating large‐scale offshore wind farms

Energy Conversion and Economics, 2021
The exploitation of offshore wind power has increased rapidly in recent years. To gain more wind power energy, offshore wind farms move farther from onshore.
Zhengxuan Li, Qiang Song, Feng An, Biao Zhao, Zhanqing Yu, Rong Zeng   +5 more
doaj   +1 more source

Stability enhancement of power system by simultaneous ac-dc power transmission

IEICE Electronics Express, 2009
Generators may supply power to infinite bus through a single circuit long ac transmission line. The system becomes unstable after the clearance of a fault if the pre fault power transfer or the fault clearance time is high. Conversion of the line for simultaneous ac-dc power flow may keep the system stable with high values of pre fault power and fault ...
Basu, K. P., H., Naeem M.
openaire   +2 more sources