Results 261 to 270 of about 636,624 (317)
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Voltage control in low voltage systems with controlled low voltage transformer (CLVT)
CIRED 2012 Workshop: Integration of Renewables into the Distribution Grid, 2012The rapidly growing penetration of Germany's distribution grids with all forms of DG causes a high pressure on voltage stability according to several normative guidelines. Beside conventional network reinforcements increasing short-circuit-power, new technical alternatives awake interest.
B. Werther +3 more
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Interaction among voltage controlling devices and voltage control effect identification
Proceedings of 2010 IEEE International Symposium on Circuits and Systems, 2010This paper presents a method to verify the adequacy of voltage control actions in the operation of electrical systems. The assessment is done through a sensitivity matrix, whose characteristics are presented and discussed. The goal is to identify whether the usual logic of voltage controlling equipment is occurring normally or not.
Ricardo B. Prada, Lindomar J. Souza
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Voltage control of multiple step voltage regulators by renewing control parameters
2014 Power Systems Computation Conference, 2014This paper presents a novel method of determining the control parameters and a voltage control method for multiple step voltage regulators (SVRs) in a single feeder. The main feature of the proposed method is the updating of the control parameters at constant intervals to minimize the amount of voltage violations and the tap operation times of the SVRs
Shinya Yoshizawa +6 more
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Voltage-controlled photonic oscillator
Optics Letters, 2010We report the development and demonstration of an X-band voltage-controlled photonic oscillator based on a whispering gallery mode resonator made of an electro-optic crystalline material. The oscillator has good spectral purity and wide, agile, linear tunability.
A A, Savchenkov +6 more
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Voltage-controlled oscillator in the coil
Proceedings of the IEEE 2005 Custom Integrated Circuits Conference, 2005., 2006In this paper we have examined the effect of devices inside an inductor through simulations and measurements. A voltage-controlled oscillator (VCO) was constructed inside an inductor using layout techniques that minimize eddy current loss and magnetic coupling.
Frank Zhang +2 more
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On voltage stability regions and voltage secondary control
PowerTech Budapest 99. Abstract Records. (Cat. No.99EX376), 2003This paper presents some new results on the geometry of the reactive load-flow problem. These results have implications in order to asses the system margin to the voltage collapse and to design a secondary voltage control aimed to avoid the voltage collapse.
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"Semiconductor voltage controllable reactance"
IRE Transactions on Electron Devices, 1955A germanium alloy-junction diode has been developed which is useful as a voltage controlled reactance up to and including ultra high frequencies. Special attention has been paid to electrical losses and lead inductance. Typical performance at 500 mc/s and 6 volts bias is a capacitance of 30 µµfd with a change in capacitance at this voltage of 2 µµfd ...
J. O'Connell, L.J. Giacoletto
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Journal of Circuits, Systems and Computers, 2020
In this paper, the design of a fuzzy rule-based MDPSM controlled buck converter is analyzed. Power factor improvement and harmonic minimization for the buck converter connected through the variable load with a fuzzy rule are discussed and simulated.
R. Thangam, S. P. Joy Vasantha Rani
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In this paper, the design of a fuzzy rule-based MDPSM controlled buck converter is analyzed. Power factor improvement and harmonic minimization for the buck converter connected through the variable load with a fuzzy rule are discussed and simulated.
R. Thangam, S. P. Joy Vasantha Rani
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Transactions of the American Institute of Electrical Engineers, 1926
Lack of voltage control is one of the objections which have been made to the use of rectifiers. The author describes a method of voltage control for rectifiers based on the use of a saturated core interphase transformer. Saturation of this device produces a gradual change from two three-phase rectifiers operating in parallel to one six-phase rectifier ...
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Lack of voltage control is one of the objections which have been made to the use of rectifiers. The author describes a method of voltage control for rectifiers based on the use of a saturated core interphase transformer. Saturation of this device produces a gradual change from two three-phase rectifiers operating in parallel to one six-phase rectifier ...
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Predictive Voltage Control of Transformerless Dynamic Voltage Restorer
IEEE Transactions on Industrial Electronics, 2015This paper presents a predictive voltage control scheme for the effective control of a transformerless dynamic voltage restorer (TDVR). This control scheme utilizes the discrete model of a voltage source inverter and an interfacing filter for the generation of the switching strategy of inverter switches.
Chandan Kumar 0001, Mahesh K. Mishra
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