Results 81 to 90 of about 3,905 (208)
House Price Volatility and Household Indebtedness in the United States and the United Kingdom [PDF]
Recent household financial models predict that collateral-constrained households are more likely to increase debt-financed spending in response to rising house values.
John Gathergood, Richard Disney
core
Improved DFIG Capability during Asymmetrical Grid Faults [PDF]
, 2015 In the wind power application, different asymmetrical types of the grid fault can be categorized after the Y/d transformer, and the positive and negative components of a single-phase fault, phase-to-phase fault, and two-phase fault can be summarized. Due
Blaabjerg, Frede, Zhou, Dao
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Enhancement LVRT capability of DFIG driven wind conversion system
International Journal of Applied Power Engineering (IJAPE)In this paper we present two techniques for protecting the doubly fed induction generator (DFIG) in the event of external disturbances on the electrical network, the crowbar circuit and series dynamic braking resistor (SDBR) techniques. During voltage dips, the first technique is triggered and short-circuits the rotor side converter (RSC) so as to ...
Abdeslam Jabal Laafou +3 more
openaire +1 more source
Control and grid integration of MW-range wind and solar energy conversion systems [PDF]
, 2017 Solar-based energy generation has increased by more than ten times over the same period. In total, worldwide electrical energy consumption increased by approximately 6340 TWh from 2003 to 2013.
Cardenas, Roberto +2 more
core +1 more source
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
doaj +1 more source
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
doaj +1 more source
Advanced Reactive Power Reserve Management Scheme to Enhance LVRT Capability
Energies, 2017 : To increase the utilization of wind power in the power system, grid integration standards have been proposed for the stable integration of large-scale wind power plants. In particular, fault-ride-through capability, especially Low-Voltage-Ride-Through (
Hwanik Lee, Moonsung Bae, Byongjun Lee
doaj +1 more source
Minimising the impact of disturbances in future highly-distributed power systems [PDF]
, 2017 It is expected that future power systems will require radical distributed control approaches to accommodate the significant expansion of renewable energy sources and other flexible grid devices.
Belloni, F.R. +11 more
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Protection of AC and DC Microgrids: Challenges, Solutions and Future Trends [PDF]
, 2015 In future, distributed energy resources (RESs) will be utilized at consumption points. As a consequence, power flow and fault current would be bidirectional and topologydependent; and hence the conventional protection strategies would be inefficient ...
Beheshtaein, Siavash +3 more
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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
doaj +1 more source