Results 91 to 100 of about 7,162 (246)

DGFACTS comparative in wind power to solve LVRT requirements

open access: yesRE&PQJ
This article compares the results recorded in the connection of three types of DGFACTS (DSTATCOM, DVR, UPQC) to a wind farm equipped with wind turbines with squirrel-cage induction generators, in order to test the response to voltage dips due to single-phase short circuit and two phase short circuit, because this type of asymmetric faults is one of the
Gómez-Pérez, null   +3 more
openaire   +3 more sources

Research on the Technology of Low Voltage Ride-through for Grid-connected Photovoltaic Inverter

open access: yesKongzhi Yu Xinxi Jishu, 2013
It analyzes the current commonly used LVRT (low voltage ride-through) solutions, presents a new LVRT SPLL (software phase locked loop) technique which is simpler and faster, and designs a grid-connected PV (photovoltaic) inverter based on the SPLL ...
WANG Nan, CHEN Yifeng, WU Hengliang
doaj  

Impact of Phase Angle Jump on a Doubly Fed Induction Generator under Low-Voltage Ride-Through Based on Transfer Function Decomposition

open access: yesEnergies
During the fault period, a phase angle jump may occur at the stator or the point of common coupling, which will deteriorate the low-voltage ride-through (LVRT) characteristics of a doubly fed induction generator (DFIG). The existing LVRT studies focus on
Peiru Feng   +5 more
doaj   +1 more source

Speed-sensorless Control of DFIG in the Condition of LVRT

open access: yesKongzhi Yu Xinxi Jishu, 2016
It presented a speed-sensorless control method of DFIG to adapt to LVRT operation condition. Firstly, a DFIG vector control model based on stator coordinate and rotator coordinate was given, characteristics of rotor voltage in normal working condition ...
SHE Yue   +3 more
doaj  

Stability enhancement of a hybrid micro-grid system in grid fault condition [PDF]

open access: yes, 2012
Low voltage ride through capability augmentation of a hybrid micro-grid system is presented in this paper which reflects enhanced reliability in the system. The control scheme involves parallel connected multiple ac-dc bidirectional converters.
15th International Conference on Electrical Machines and Systems, ICEMS 2012   +4 more
core  

Hybrid control strategy for photovoltaic grid-connected inverters meeting low voltage ride through requirements

open access: yesXi'an Gongcheng Daxue xuebao
When photovoltaic grid-connected inverters adopt voltage-oriented control (VOC), their dynamic response is slow, struggling to meet the national standard requirements for lowvoltage ride-through (LVRT) capability in photovoltaic power generation systems ...
SUN Zhiyuan   +3 more
doaj   +1 more source

LVRT Strategy -based Multi-controller Switching for DFIG [PDF]

open access: yesProceedings of the 3rd Annual International Conference on Electronics, Electrical Engineering and Information Science (EEEIS 2017), 2017
Dan WANG, Cheng-Xiong MAO, Shi-Hong GAO
openaire   +1 more source

Low-voltage ride-through strategy for an integrated permanent magnet synchronous generator in a flexible interconnected distribution network

open access: yesFrontiers in Energy Research
For the permanent magnet synchronous generator (PMSG) integrated into the flexible interconnected distribution network (FIDN), its low-voltage ride-through (LVRT) strategy needs to be designed to enhance the transient operation capability of the FIDN ...
Lin Yang   +7 more
doaj   +1 more source

How functional fitness relates to muscular power among older adults [PDF]

open access: yes, 2014
The current study examined the relationship between functional fitness measures and muscular power among older adults. A 30-second chair stand test, 10-meter habitual walking test, and an 8-foot up-and-go test were all used as measures of functional ...
Moix, Jessica Mae
core   +1 more source

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