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Application of Dynamic Voltage Restorer in microgrid for voltage sag/swell mitigation
2015 IEEE Power, Communication and Information Technology Conference (PCITC), 2015Microgrids are becoming increasingly attractive to consumers as it allows utilization of freely available renewable energy sources. They are usually installed at consumer's sites i.e the distribution end. Due to high penetration of distributed generation units with different types of loads, microgrids can cause power quality and power control issues ...
M.T.L. Gayatri +2 more
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A proposed Transformer-less Dynamic Voltage Restorer to Voltage Sag/swell Mitigation
2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE), 2019Power quality can be improved by reducing the voltage disturbances. The dynamic voltage restorer (DVR) increases the power quality by compensating the voltage disturbance. This paper presents a transformer-less DVR that can recover the voltage disturbances to that the same magnitude and phase angle before disturbance occurs, by using dq0 measurement ...
Haitham Elmasry +3 more
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Dynamic Control Strategy in Medium Voltage DVR for Mitigating Voltage Sags/Swells
2006 International Conference on Power System Technology, 2006This paper presents control algorithm for dynamic voltage restorer (DVR) to improve voltage quality problems such as voltage sags/swells in distribution systems. When voltage sags/swells occur, possibly, due to faults and some load switching, DVR has to detect the problem and inject appropriate voltage component as soon as possible.
P. Boonchiam, N. Mithulananthan
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Series Voltage Regulator for a Distribution Transformer to Compensate Voltage Sag/Swell
IEEE Transactions on Industrial Electronics, 2017This paper presents a series voltage regulator for a distribution transformer which addresses power quality issues in the electrical power distribution system. The proposed system is comprised of a line frequency transformer connected to a power electronic converter which is autoconnected on the secondary side. This autoconnection is facilitated by use
Taeyong Kang +3 more
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Voltage sag/swell compensation using Z-Source inverter based dynamic voltage restorer
2011 International Conference on Emerging Trends in Electrical and Computer Technology, 2011This paper presents the modeling and simulation of a dynamic voltage restorer as a voltage sag/swell mitigation device in electrical power distribution networks. The dynamic voltage restorer, with its excellent dynamic capabilities, when installed between the supply and a critical load feeder, can compensate for voltage sags/swells, restoring line ...
Rani P. Usha, M. Rajkumar, S. Rama Reddy
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Study on Compensation of Voltage Sag and Voltage Swell by Using DVR (Dynamic Voltage Restorer)
2018 International Conference on Current Trends towards Converging Technologies (ICCTCT), 2018Significant feature for electrical engineering is quality of power in modern days. Due to growing use of solid state, non-linear, power semiconductor switching devices power quality issues are formed. A power quality crisis refers to the problems that are cause by the increase of a non standard voltage or current or frequency.
Riddhi Pandya, FalRuni Bhavsar
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Compensation of voltage sags and swells by using Dynamic Voltage Restorer (DVR)
2016 International Conference on Electrical, Electronics, and Optimization Techniques (ICEEOT), 2016The most important aspect for electrical engineering is power quality in recent year. Power quality problem is an event of abnormal voltage, current or frequency. Utility distribution networks experience from various types of disturbances. The major problems dealt here are the voltage sags/swells.
Akanksha V. Ital, Sumit A. Borakhade
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Mitigation of Voltage Swell by Switched Autotransformer with Random Hysteresis Voltage Control
2011 Asia-Pacific Power and Energy Engineering Conference, 2011This paper presents a voltage swell compensator based on a switched autotransformer by random hysteresis voltage control. The advantage of this compensator is that it uses only one controlled switch per phase with no energy storages. Also the control scheme purposed here distributes the harmonic spectrum of the load voltage and reduces its total ...
Hamed Mehranfar +2 more
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Single-phase Z-source voltage sag/swell compensator
2009 IEEE International Symposium on Industrial Electronics, 2009This paper deals with a new topology based on single-phase Z-source AC/AC converter for voltage swells or sags compensation. The proposed system is able to compensate voltage swells. In addition, it is also able to compensate up to over 50% voltage sag.
Minh-Khai Nguyen +2 more
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Modified series compensation for voltage sag / swell mitigation
2014 IEEE 6th India International Conference on Power Electronics (IICPE), 2014A voltage source inverter (VSI) is employed to implement a variable frequency drive (VFD) for obtaining desired speed-torque characteristics of an AC motor which is normally fed by a diode rectifier at the front end. These uncontrolled converters inject excessive harmonic currents in to AC mains resulting in detoriated power quality in terms of AC ...
Kirti Mathuria +3 more
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