Results 1 to 10 of about 16,206,899 (292)

Derivation and Comparison of Modular Multilevel Converter Topologies with DC Fault Ride-through Capability

open access: yesZhongguo dianli, 2021
The DC fault has become one of the most serious obstacles for the development of DC system because of its wide impact range and large fault current.
Shiyuan FAN   +5 more
doaj   +2 more sources

Fault ride-through control strategy of H-bridge cascaded energy storage system [PDF]

open access: yesE3S Web of Conferences, 2020
The cascaded energy storage system has received extensive attention in areas such as new energy consumption, maintaining stable operation of the power grid, and supporting black start due to its advantages such as high access voltage level, large single ...
Yin Shi   +4 more
doaj   +1 more source

Photovoltaic inverters with fault ride-through Capability [PDF]

open access: yes2009 IEEE International Symposium on Industrial Electronics, 2009
This paper presents a new control strategy that allow the photovoltaic system operate under grid faults without overpass the rated current and assuring sinusoidal currents. In the classic control strategies used in photovoltaic systems the power delivered to the grid remains constant when a fault occurs, hence the current can reach dangerous values ...
Azevedo, Gustavo M.S.   +4 more
openaire   +2 more sources

Transmission distribution coordination for DER fault ride through support

open access: yesEnergy Reports, 2022
Rapid renewable energy sources (RESs) deployments in transmission and distribution networks have changed power systems’ operation and control mechanisms.
Ha Thi Nguyen   +7 more
doaj   +1 more source

Enhancing LVRT capability of DFIG using cooperative control of BTFCL and RPC

open access: yesAutomatika, 2023
To integrate the high penetration of power from wind farms into a grid, one of the key requirements posed by new grid codes is Low Voltage Ride Through (LVRT) capability. This paper studies voltage compensation-based methods to improve fault ride-through
K. Gireeshma, S. Chandramohan
doaj   +1 more source

Fault equivalent model for non-blocking DC fault ride-through of hybrid MMC

open access: yes电力工程技术, 2023
Compared with full-bridge modular multilevel converter (MMC), the hybrid MMC composed of half bridge sub-module and full bridge sub-module has the low cost and high DC fault ride-through capability.
WANG Zeqing   +5 more
doaj   +1 more source

Multifunctional scheme for frequency/voltage/stability control in HVDC line under concurrent cyber‐attacks and faults

open access: yesIET Generation, Transmission & Distribution, 2022
This paper presents a control mechanism on high voltage direct current (HVDC) transmission line for frequency/voltage regulation, fault ride through (FRT) capability, and cyber‐attack/fault detection.
Reza Hemmati, Hossien Faraji
doaj   +1 more source

Coordinated Control Strategy of DC Fault Ride-through for the WF Connected to the Grid Through the MMC-HVDC

open access: yesFrontiers in Energy Research, 2021
Aiming at the problems of DC fault isolation and power surplus in the HVDC system with large-scale wind farm (WF) integration after single-pole grounding fault, this article designs a modified current transfer modular multilevel converter (M-CT-MMC ...
Bo Zhu   +5 more
doaj   +1 more source

Fault Ride-through Hybrid Controller for MMC-HVDC Transmission System via Switching Control Units Based on Bang-bang Funnel Controller

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
This paper proposes a fault ride-through hybrid controller (FRTHC) for modular multi-level converter based high-voltage direct current (MMC-HVDC) transmission systems. The FRTHC comprises four loops of cascading switching control units (SCUs).
Yang Liu   +3 more
doaj   +1 more source

A Novel Control Strategy for AC Fault Ride Through in Multi-terminal DC System

open access: yes发电技术, 2022
This paper proposed a novel control strategy-coordinated DC voltage control (DCVC)-to enhance the AC fault ride through capability of multi-terminal high voltage direct current (HVDC) system.
YANG Zhou   +3 more
doaj   +1 more source

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