Results 221 to 230 of about 448 (262)

Dynamic Voltage Restorer For Voltage Sag Compensation

2005 International Conference on Power Electronics and Drives Systems, 2006
The Dynamic Voltage Restorer (DVR) is a power electronic device that is used to inject 3-phase voltage in series and in synchronism with the distribution feeder voltages in order to compensate for voltage sag. In this paper the operation of a DVR is presented.
A.K. Ramasamy, R. Krishnan Iyer, V.K. Ramachandaramuthy, R.N. Mukerjee   +3 more
openaire   +1 more source

The influence of motor loads on the voltage restoration capability of the dynamic voltage restorer

PowerCon 2000. 2000 International Conference on Power System Technology. Proceedings (Cat. No.00EX409), 2002
The performance of voltage sag mitigation devices such as the dynamic voltage restorer (DVR) has been analyzed in highly simplified electrical environment consisting of simple line and load models. The negative influences of dynamic motor loads on the existing voltage disturbance, such as post-fault sags, additional during-fault phase-angle deviations,
C.S. Chang, Y.S. Ho
openaire   +1 more source

Voltage sag compensation with energy optimized dynamic voltage restorer

IEEE Transactions on Power Delivery, 2002
The compensation capability of a dynamic voltage restorer (DVR) depends primarily on the maximum voltage injection ability and the amount of stored energy available within the restorer. A new phase advance compensation (PAC) strategy for the DVR is proposed in order to enhance the voltage restoration property of the device.
Vilathgamuwa, Mahinda, Perera, A.A.D.R., Choi, San Shing   +2 more
openaire   +2 more sources

Detailed Analysis of Load Voltage Compensation for Dynamic Voltage Restorers

TENCON 2006 - 2006 IEEE Region 10 Conference, 2006
This paper presents detailed analysis of load voltage compensation for dynamic voltage restorer (DVR) that used for enhancing power quality. DVR is a custom power device used to correct voltage sag by injecting voltage as well as power into power distribution system.
Boonchiam, P., Apiratikul, P., Mithulananthan, N.   +2 more
openaire   +3 more sources

An Enhanced Voltage Sag Compensation Scheme for Dynamic Voltage Restorer

IEEE Transactions on Industrial Electronics, 2015
This paper deals with improving the voltage quality of sensitive loads from voltage sags using a dynamic voltage restorer (DVR). The higher active power requirement associated with voltage phase jump compensation has caused a substantial rise in size and cost of the dc link energy storage system of DVR.
Abdul Mannan Rauf, Vinod Khadkikar
openaire   +1 more source

Sensitive loads voltage improvement using Dynamic Voltage Restorer

Proceedings of the 2011 International Conference on Electrical Engineering and Informatics, 2011
High quality energy is necessary to end-users domestic or industrial customers of the public electric distribution networks. The quality of the electric power is characterized by the measurement and the analysis of the electric disturbances which make it possible to understand the origin of the disturbances, to evaluate their impact on the sensitive ...
Mohammed Nasser Tandjaoui, Chellali Benachaiba, Othmane Abdelkhalek, Doumbia Mamadou Lamine, Y. Mouloudi   +4 more
openaire   +1 more source

Dynamic Voltage Restorer with Compound Compensation Method

Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering, 2019
To realize the quick compensation of the sag voltage by the dynamic voltage restorer (DVR), reduce the influence on the sensitive load. This paper proposes a compound compensation based on pre-sag compensation and minimum energy compensation. Firstly, the compensation phasor diagrams of pre-sag compensation and minimum energy compensation are analyzed,
Dingzhong Shi, Hongwen Liu, Zhijie Song
openaire   +1 more source

Multilevel Optimal Predictive Dynamic Voltage Restorer

IEEE Transactions on Industrial Electronics, 2010
This paper presents an optimal predictive controller for a multilevel converter-based dynamic voltage restorer (DVR), which is able to improve the voltage quality of sensitive loads connected to the electrical power network. The optimal predictive controlled multilevel DVR can restore sags and short interruptions while reducing the total harmonic ...
J. Dionísio Barros, J. Fernando A. da Silva   +1 more
openaire   +1 more source

Fault current interruption by the dynamic voltage restorer

2013 IEEE Power & Energy Society General Meeting, 2013
This paper introduces and evaluates an auxiliary control strategy for downstream fault current interruption in a radial distribution line by means of a dynamic voltage restorer (DVR). The proposed controller supplements the voltage-sag compensation control of the DVR.
Firouz Badrkhani Ajaei, Shahrokh Farhangi, Reza Iravani   +2 more
openaire   +1 more source

Mitigation of Voltage Sag And Voltage Swell By Dynamic Voltage Restorer

2019 International Conference on Intelligent Computing and Control Systems (ICCS), 2019
This work deals with reducing major voltage flickering problems by using dynamic voltage restoration and SPWM technique it helps to improve the power quality of the system. Even though voltage swag and swell occurs in transmission as well as distribution side but the problem is resolved only at the distribution side.
Pujarchana Swain, Basanta K. Panigrahi, Rama Prasanna Dalai, Jyotiranjan Mohnaty, Sidhanta S. Medinray, Shakti Prasad Ray   +5 more
openaire   +1 more source