Results 61 to 70 of about 608 (186)
Enhanced wind turbine generator fault ride‐through capability by using hybrid on‐load tap changer
IET Generation, Transmission & Distribution, 2020 Low‐voltage ride‐through (LVRT) compliance of wind energy conversion systems is one of the significant concerns for both the wind industry and the system operator.
Hazem Karbouj, Zakir Hussain Rather
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Impact of Grid Impedance on LVRT Performance of DFIG System With Rotor Crowbar Technology
IEEE Access, 2019 Nowadays, most of the doubly fed induction generators (DFIGs) are equipped with rotor crowbar for the requirement of low voltage ride through (LVRT). The crowbar resistance is an important parameter, and it is selected taking rotor overcurrent and dc ...
Zakiud Din +4 more
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A study on the negative sequence current injection during LVRT of IBRs
RE&PQJLow Voltage Ride Through (LVRT) behaviour of Inverter Based Resources (IBR) during asymmetrical grid faults is dictated by the requirements of Grid Code (GC) at the Point of Common Coupling (PCC) of the renewable energy plants. Earlier GCs demanded only positive sequence current injection, which gave freedom to inverter manufacturers to implement ...
A. Blázquez +5 more
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Energy ReportsTo effectively address the problem of low comprehensive simulation accuracy of dynamic equivalent models for offshore wind farms under diverse fault conditions, this paper proposes a dynamic equivalent modeling method for offshore wind farms based on cc (
Yankun Shi +6 more
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Research on the Technology of Low Voltage Ride-through for Grid-connected Photovoltaic Inverter
Kongzhi 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
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Analysis of compressor surge induced by converter low-voltage ride through and improvement measures
You-qi chuyun[Objective] Centrifugal compressors encounter challenges in maintaining stable operation due to the occurrence of harmful surges, and the low-voltage ride through(LVRT) function of converters has been utilized to sustain continuous operation against ...
PU Bin +3 more
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Energies, 2019 The penetration of wind turbine generators onto the grid has grown worldwide at unprecedented rates in recent years. This raises the concern that the tripping of wind turbine generators could potentially cause system collapses.
Hyeong-Jin Lee +2 more
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EnergiesDuring 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
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Speed-sensorless Control of DFIG in the Condition of LVRT
Kongzhi 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
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Xi'an Gongcheng Daxue xuebaoWhen 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
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