Results 241 to 250 of about 22,219,137 (274)
Some of the next articles are maybe not open access.

Modelling and Simulation of Fractional Frequency Transmission for S of Power Systems

Journal of Sustainable Science and Transformative Research - Reviews & Letters, 2023
The fractional frequency transmission system (FFTS) is a very promising long- distance transmission approach, which uses lower frequency (50/2 Hz, 50/3 Hz, 50/4 Hz) to reduce the electrical length of the ac power line, and thus, to increase its transmission capacity by several fold.
openaire   +1 more source

Reliability comparison of two types of converters for fractional frequency transmission system

2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC), 2016
AC-AC converter is a piece of key equipment in the fractional frequency transmission system and both back-to-back MMC and M3C have great potential, but to date there are few works focusing on their reliability. A comparison of the reliability of these two types of converter is carried out in this paper, considering the SM redundancy.
null Biyang Wang   +6 more
openaire   +1 more source

Performance analysis of fractional frequency transmission system using hardware setup

2015 International Conference on Electrical, Electronics, Signals, Communication and Optimization (EESCO), 2015
Fractional frequency transmission system (FFTS) is new way of transmitting bulk power with reduction in transmission losses for very long distance (>400km). It also improves stability compared to extra high voltage AC (EHVAC) system. FFTS is very useful in transmitting power from renewable sources over very long distance.
Siddhesh Sawant   +2 more
openaire   +1 more source

Global Stable Control Scheme of Hexverter for Fractional Frequency Transmission System

2019 IEEE Power & Energy Society General Meeting (PESGM), 2019
This paper propose a novel control scheme of Hexverter in Fractional frequency transmission system (FFTS) application, which is based on the interconnection and damping assignment passivity-based control (IDA-PBC) methodology. This scheme characterize the global stability and strong robustness.
Yongqing Meng   +3 more
openaire   +1 more source

Unified iterative method to calculate power flow of the interconnected system with Fractional Frequency Transmission System

2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2011
Fractional Frequency Transmission System (FFTS) is a new approach to integrate large-scale, remote wind power into grid. It adopts lower frequency, such as 50/3Hz, to transmit remote wind power to the load center directly. Therefore, it could reduce the voltage influence caused by the intermittence of wind power.
Teng Yufei   +4 more
openaire   +1 more source

Fractional frequency transmission system to enhance line loadability in EHVAC & UHVAC long transmission line

2014 International Conference on Advances in Electronics Computers and Communications, 2014
In this paper comparative analysis is carried out for power transmission, for line of 1200km length at 50Hz and 50/3Hz. Test system of 765kV and 1200kV are selected as two transmission voltage levels. Simulation is carried out on test system over Matlab simulink environment. In steps of 25%, computation of sending & receiving end voltages, active power
B S Mohan   +2 more
openaire   +1 more source

Averaged-Value Model of Modular Multilevel Matrix Converter for Fractional Frequency Transmission System

2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019
Modular Multilevel Matrix Converter (M3C) is a very promising direct AC/AC converter for Fractional Frequency Transmission System (FFTS), which is also known as Low-frequency AC Transmission System (LFAC). The massively used IGBT devices and complex control of M3C makes the simulation research of FFTS very slow.
Jing Ge   +7 more
openaire   +1 more source

Power Flow Calculation and Operating Parameter Optimization of Fractional Frequency Power Transmission System

2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems (PEDG), 2019
Fractional frequency Transmission System (FFTS) owns the advantages of traditional High Voltage AC (HVAC) and High Voltage DC (HVDC) Transmission systems, and can meet the grid-connected demands of large-capacity and long-distance offshore wind farms. The power flow calculation model for a novel Modular Multilevel Matrix Converter is proposed, based on
LIU Rui, WANG Xiuli
openaire   +1 more source

Notice of Retraction: Research On Wind Power Connected To Power Grid By Fractional Frequency Transmission System

2010 Asia-Pacific Power and Energy Engineering Conference, 2010
On the base of study on the characteristic of the currently existing parallel operation model of wind power and the technology of fractional frequency transmission system (FFTS), wind power system connected to power grid via FFTS is presented in this paper. The system is modeled and simulated with MATLAB/SIMULINK.
Quan-xin Yang   +6 more
openaire   +1 more source

Design and Analysis of Low Frequency Transformer Applied in Fractional Frequency Transmission System

2023 26th International Conference on Electrical Machines and Systems (ICEMS), 2023
Yuan Hu, Jien Ma, Youtong Fang
openaire   +1 more source

Home - About - Disclaimer - Privacy