Results 81 to 90 of about 7,162 (246)
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
Power Electronics – The Key Technology for Renewable Energy System Integration [PDF]
, 2015 The energy paradigms in many countries (e.g. Germany and Denmark) have experienced a significant change from fossil-based resources to clean renewables (e.g. wind turbines and photovoltaics) in the past few decades.
Blaabjerg, Frede +3 more
core +2 more sources
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
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
core +2 more sources
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
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
Power Control Flexibilities for Grid-Connected Multi-Functional Photovoltaic Inverters [PDF]
, 2016 This study explores the integration issues of next-generation high-penetration photovoltaic (PV) systems, where the grid is becoming more decentralised and vulnerable.
Blaabjerg, Frede +3 more
core +2 more sources
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
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