dynamic voltage restorer


Dynamic voltage restoration is a method of overcoming voltage sags and swells that occur in electrical power distribution. These are a problem because spikes consume power and sags reduce efficiency of some devices.

Simulation of dynamic voltage restorer using hysteresis voltage control
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Abstract Dynamic Voltage Restorer (DVR) is one of the custom power devices that are used as an effective solution for the protection of sensitive loads against voltage disturbances in power distribution system. The efficiency of the DVR depends on the performance of the

Dynamic voltage restorer against voltage sag
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A dynamic voltage restorer (DVR) is a custom power device used to correct the voltage sag by injecting voltage as well power into the system. The mitigation capability of these devices is mainly influence by the maximum load; power factor and maximum voltage dip to be

Voltage sag and mitigation using dynamic voltage restorer (DVR) system
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This paper highlights voltage sag as one of a power quality issue and Dynamic Voltage Restorer (DVR) is using for mitigation of voltage sag. Voltage sag is short reduction voltage from nominal voltage , occurs in a short time which can cause damage and loss of production

Voltage sag correction by dynamic voltage restorer with minimum power injection
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Author Affiliation: School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore Abstract: A dynamic voltage restorer is a power quality device used to correct the voltage disturbances by injecting voltage as well as power into the system. A

Mitigation of voltage sags/swells using dynamic voltage restorer (DVR)
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This paper describes the effectiveness of using dynamic voltage restorer (DVR) in order to mitigate voltage sags and swells in low voltage distribution systems. A dynamic voltage restorer based on the dqo algorithm is discussed. The proposed control scheme is very

An overview of dynamic voltage restorer for voltage profile improvement
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The use of sensitive electronic equipment has increased now a days which has lead to power quality problems. The various power quality disturbances are transients, interruptions, voltage sag, voltage swell, voltage collapse, harmonics etc. To solve these power quality

Adaptive PI Control of Dynamic Voltage Restorer Using Fuzzy Logic.
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PI controller is very common in the control of DVRs. However, one disadvantage of this conventional controller is the fact that by using fixed gains, the controller not provide the required control performance, when there are variations in the system parameters or

Dynamic voltage restorer based on load condition
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Dynamic voltage restorers (DVR) can provide the most commercial solution to mitigation voltage sag by injecting voltage as well as power into the system. The mitigation capability of these devices is mainly influenced by the maximum load; power factor and maximum

Compensation of sags and swells voltage using Dynamic Voltage Restorer (DVR) during single line to ground and three-phase faults
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This paper deals with modeling and simulation technique of a Dynamic Voltage Restore (DVR). The DVR is a dynamic solution to protect sensitive loads against voltage sags and swells. The DVR can be implemented to protect a group of medium voltage or low voltage

Dynamic voltage restorer for voltage sag mitigation using PI with fuzzy logic controller
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This paper deals with terminology and various issues related to power quality problems. This problem occurs in voltage sags, swells, harmonics, surges, sustained over voltage and under voltage originated from power system can often damage/or disrupt computerized

Simulation and modeling of a dynamic voltage restorer
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This paper presents modeling and analysis of a Dynamic Voltage Restorer (DVR) with sinusoidal pulse width modulation (SPWM) based controller by using the Matlab/Simulink. The proposed control scheme is simple to design and allows flexibility in cost or robustness

Power quality enhancement in power distribution system using artificial intelligence based dynamic voltage restorer
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The power quality enhancement is very mandatory with the newer generation load equipments, whose performance is very sensitive to power quality disturbances especially with voltage sag, Harmonics and Interruption. The power electronic based power

Mitigation of voltage sags/swells by dynamic voltage restorer using PI and fuzzy logic controller
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Dynamic Voltage Restorer can provide the most cost effective solution to mitigate voltage sags and swells by establishing the proper voltage quality level that is required by customer. This device is connected in series with the distribution feeder at medium voltage . The PI

A fuzzy logic based dynamic voltage restorer for voltage sag and swell mitigation for industrial induction motor loads
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Power quality has been an issue that is becoming increasingly pivotal in industrial electricity consumers point of view in recent times. Modern industries employ Sensitive power electronic equipments, control devices and non-linear loads as part of automated processes

Voltage Disturbances Mitigation in Low Voltage Distribution System Using New Configuration of Dynamic Voltage Restorer (DVR)
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This paper discusses the design and development of Dynamic Voltage Restorer (DVR) controller for voltage unbalanced compensation using dqo transformation technique. The controller in dqo coordinates has better performance than conventional controllers. The

Application of dynamic voltage restorer in electrical distribution system for voltage sag compensation
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Power quality has become a major area of concern in present era due to the increase in modern sensitive and sophisticated loads connected to the Distribution System. One of the

State of the art: Dynamic voltage restorer for power quality improvement
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Improved and controlled power quality is one of the essential and fundamental need in any power driven industry for optimum utilization of resources. However critical problems in power quality have been recognized such as sags, swells, harmonic distortions and other

Design of PI and fuzzy controllers for Dynamic Voltage Restorer (DVR)
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Power quality is one of the major concerns in the present era. It has become important, especially, with the introduction of sophisticated devices, whose performance is very sensitive to the quality of power supply. To solve this problem, custom power devices are

Design and simulation of a novel self supported dynamic voltage restorer (DVR) for power quality improvement
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Power quality is one of the major concerns in the present era. The problem of voltage sags and swells and its major impact on sensitive loads are well known. To solve this problem, custom power devices are used. One of those devices is the Dynamic Voltage Restorer

Photovoltaic fed Dynamic Voltage Restorer with Voltage Disturbance Mitigation Capability Using ANFIS Controller
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The performance of present complex power system suffers with sudden current and voltage variations. The present model uses renewable source for Z-Source Inverter fed Dynamic Voltage Restorer (PV-ZSI-DVR). The proposed DVR topology dynamically compensates




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