Results 111 to 120 of about 4,868 (226)

Inter-harmonics in multi-terminal VSC-based HVDC systems

Journal of Modern Power Systems and Clean Energy, 2016
Multi-terminal voltage sourced converter (VSC)-based high voltage direct current (HVDC) system composes of a number of VSCs connected to an HVDC grid (or dc grid). The dc grid is often configured by cable interconnections between converter stations, thus
Minxiao Han, Phuchuy Nguyen, Wenli Yan
doaj   +1 more source

The prospects and challenges for HVDC cable technology in a smart grid world [PDF]

, 2019
High voltage direct current (HVDC) cable systems are traditionally the best solution for long-distance submarine transmission, but are not very common on land.
Mazzanti, Giovanni, J. Castellon, Castellon, Jerome, G. Mazzanti, T. Andritsch, Andritsch, Thomas   +5 more
core  

A Nonlinear Extended State Observer-Based Load Torque Estimation Method for Wind Turbine Generators

Eng
As global demand for clean and renewable energy continues to rise, wind power has become a critical component of the sustainable energy transition.
Yihua Zhu, Jiawei Yu, Yujia Tang, Wenzhe Hao, Zhuocheng Yang, Guangqi Li, Zhiyong Dai   +6 more
doaj   +1 more source

Load-Side Encoder-Based Redundant Control Framework for PMSG Wind Energy Conversion Systems

Inventions
In permanent magnet synchronous generator-based wind energy conversion systems, generator-side measurements may become unreliable due to sensor faults, which can degrade system reliability.
Zijian Zhang, Wenzhe Hao, Chao Luo, Jiawei Yu, Yihua Zhu, Zhiyong Dai, Guangqi Li   +6 more
doaj   +1 more source

High‐speed main protection for multiterminal LCC‐MMC‐UHVDC based on initial wave process comparison

IET Generation, Transmission & Distribution
The multiterminal LCC‐MMC‐UHVDC, which employs an LCC on the rectifier side and multiple FHMMCs on the inverter side, has emerged as a cutting‐edge technology.
Yan Li, Jun Li, Guiyuan Li, Runbin Cao, Xinjie Zeng, Ning Tong   +5 more
doaj   +1 more source

Efficient Prototyping of a Field-Programmable Gate Array-Based Real-Time Model of a Modular Multilevel Converter

Energies
Field-programmable gate array (FPGA)-based real-time simulation plays a crucial role in testing power–electronic dominated systems with the formation of controller hardware-in-the-loop (CHIL) or power hardware-in-the-loop (PHIL).
Wenming Gong, Chaofan Liu, Mingdong Wang, Xiaobing Zhao   +3 more
doaj   +1 more source

Operation and Control of HVDC Grids

, 2018
Högspända likströmsnät spelar en allt större roll med att integrera förnyelsebar energi i våra elnät. För att styra dessa nät på bästa möjliga sätt krävs optimala omvandlar- och nätkontrollstrategier. I detta projekt studeras hur ett fyrterminalt högspänt likströmsnät kan styras och drivas genom att implementera olika omvandlar- och ...
Bianchi, Adam, Nylander, Gabriel
openaire   +1 more source

The role of HVDC in reducing carbon emissions [PDF]

International audienceHigh-Voltage Direct Current (HVDC) is the most high-power application of power electronics. HVDC has been commercially available as a niche technology in power grids for 70 years, first using Line- Commutated Converters and, in the ...
Davidson, Colin
core   +1 more source

Overview of Coordinated Control Strategies of Wind Farm Integrated MMC-HVDC

CES Transactions on Electrical Machines and Systems
With the development of onshore power grid projects in desert, Gobi and desertified regions as well as offshore wind power projects, electric energy requires long-distance transmission due to insufficient local consumption.
Jingyi Zhang, Huiru Yang, Zhen Tian, Meng Huang, Pan Feng, Fei Liu, Zhe Chen, Ruanming Huang, Xiaoming Zha   +8 more
doaj   +1 more source

Implementation of Nodes in HVDC Grids

, 2020
This project is made for a deeper understanding ofhow frequency and amplitude of the waves that create the controlwave in a Pulse Width Modulated 2-level inverter affect the powerquality and power losses. The results were that a high frequencyreduces the Total Harmonic Distortion but increases the powerloss.
openaire   +1 more source