Power system security enhancement by HVDC links using a closed-loop emergency control [PDF]
, 2019 In recent years, guaranteeing that large-scale interconnected systems operate safely, stably and economically has become a major and emergency issue.
Allaoui, Tayeb +4 more
core +2 more sources
A Recap of Voltage Stability Indices in the Past Three Decades
Energies, 2019 Increasing demand for electricity and the modernization of power systems within competitive markets has induced power systems to operate close to their stability limits.
Mir Sayed Shah Danish +5 more
doaj +1 more source
A Generalized Index for Static Voltage Stability of Unbalanced Polyphase Power Systems including Th\'evenin Equivalents and Polynomial Models [PDF]
, 2019 This paper proposes a Voltage Stability Index (VSI) suitable for unbalanced polyphase power systems. To this end, the grid is represented by a polyphase multiport network model (i.e., compound hybrid parameters), and the aggregate behavior of the devices
Kettner, Andreas Martin, Paolone, Mario
core +2 more sources
Frontiers in Energy Research, 2021 Electricity generation from renewable energy sources such as solar energy is an emerging sustainable solution. In the last decade, this sustainable source was not only being used as a source of power generation but also as distributed generation (DG ...
Mohamed Abdul Rasheed, Renuga Verayiah
doaj +1 more source
Generalized Voltage-based State-Space Modelling of Modular Multilevel Converters with Constant Equilibrium in Steady-State [PDF]
, 2017 This paper demonstrates that the sum and difference of the upper and lower arm voltages are suitable variables for deriving a generalized state-space model of an MMC which settles at a constant equilibrium in steady-state operation, while including the ...
Bergna-Diaz, Gilbert +4 more
core +3 more sources
Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review
Electricity, 2022 The ongoing development of renewable energy and microgrid technologies has gradually transformed the conventional energy infrastructure and upgraded it into a modernized system with more distributed generation and localized energy storage options ...
Xinyu Liang +2 more
doaj +1 more source
Enhancement Voltage Stability of the Iraqi Power Grid Using Shunt FACTs Devices [PDF]
Engineering and Technology Journal, 2016 Due to raise in demand, the transmission system becomes more exhausted, which in turn, forces the system to be more susceptible to voltage instability. The aim of this research is to study the enhancement in voltage stability margin by installation the ...
Inaam Ibrahim Ali +1 more
doaj +1 more source
Junctions of multiple quantum wires with different Luttinger parameters [PDF]
, 2012 Within the framework of boundary conformal field theory, we evaluate the conductance of stable fixed points of junctions of two and three quantum wires with different Luttinger parameters.
Adrian E. Feiguin +8 more
core +2 more sources
IEEE Access, 2022 Modern power utilization has been forced to operate close to their stability limits, which may lead to voltage instability or collapse owing to the stressed operating conditions of networks.
Bazilah Ismail +6 more
doaj +1 more source
Plug and Play DC-DC Converters for Smart DC Nanogrids with Advanced Control Ancillary Services [PDF]
, 2018 This paper gives a general view of the control possibilities for dc-dc converters in dc nanogrids. A widely adopted control method is the droop control, which is able to achieve proportional load sharing among multiple sources and to stabilize the ...
Caldognetto, Tommaso +4 more
core +1 more source