Results 21 to 30 of about 275,100 (301)
Tunable Balanced-to-Unbalanced In-Phase Power Divider: Theoretical Analysis and Design [PDF]
Radioengineering, 2022 This paper presents a tunable power divider (PD) which is balanced at the input port and unbalanced at the output ports. This tunable balanced-to-unbalanced (TBU) PD divides the power either equally or in specific ratio by varying capacitance in the ...
A. N. Yadav
doaj
Improved control of virtual synchronous generator under unbalance of grid voltage
Energy Reports, 2023 Asymmetric faults in the power grid will lead to unbalanced grid voltage. When the traditional VSG control operates under unbalanced grid voltage, the output current will be unbalanced, resulting in output power oscillation.
Chunxue Wen +3 more
doaj +1 more source
Power and Current Limiting Control of Wind Turbines Based on PMSG Under Unbalanced Grid Voltage
IEEE Access, 2021 Unbalanced grid voltage sags are the severe challenge for wind power generation system which connected to the grid successfully. The dc bus voltage and output power will fluctuate under unbalanced grid voltage. Moreover, the voltage sags will lead to the
Jun Liu, Chencong Zhao, Zhouhua Xie
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
Optimization of Voltage Unbalance Compensation by Smart Inverter
Energies, 2020 This paper presents a compensation method for unbalanced voltage through active and reactive power control by utilizing a smart inverter that improves the voltage unbalance index and detects an unbalanced state of voltage magnitude and phase, and thus ...
Ryuto Shigenobu +5 more
doaj +1 more source
Energies, 2018 Improper connections of unbalanced distributed generators (DGs) and loads in a three-phase microgrid cause unbalanced and bidirectional power flow problems. The unbalanced DGs and loads may also aggravate the electric power quality (EPQ), such as voltage
Wei-Neng Chang +2 more
doaj +1 more source
Journal of Modern Power Systems and Clean Energy, 2020 Battery energy storage system (BESS) has already been studied to deal with uncertain parameters of the electrical systems such as loads and renewable energies.
Reza Hemmati, Hasan Mehrjerdi
doaj +1 more source
Zhongguo dianli, 2022 The linear power flow calculation method can provide better robustness and higher efficiency for active distribution network analysis and operation regulation.
Hongwei LI, Li PAN, Lu HAN, Mingrui GE
doaj +1 more source
Double-Frame Current Control with a Multivariable PI Controller and Power Compensation forWeak Unbalanced Networks [PDF]
, 2016 The handling of weak networks with asymmetric loads and disturbances implies the accurate handling of the second-harmonic component that appears in an unbalanced network.
Rufery, Alfred, Siemaszko, Daniel
core +3 more sources
Nonlinear unbalanced Bessel beams in the collapse of Gaussian beams arrested by nonlinear losses [PDF]
, 2008 Collapse of a Gaussian beam in self-focusing Kerr media arrested by nonlinear losses may lead to the spontaneous formation of a quasi-stationary nonlinear unbalanced Bessel beam with finite energy, which can propagate without significant distortion over ...
Alberto Parola +6 more
core +3 more sources