Results 211 to 220 of about 448 (262)

Predictive Voltage Control of Transformerless Dynamic Voltage Restorer

IEEE Transactions on Industrial Electronics, 2015
This 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, Mahesh K Mishra
exaly   +2 more sources

Multilevel Dynamic Voltage Restorer

IEEE Power Electronics Letters, 2004
This paper presents the implementation and control of a high voltage dynamic voltage restorer (HVDVR) for use in power distribution network to compensate for sags in utility voltages. The proposed HVDVR is implemented using a multilevel inverter topology with isolated DC energy storages, allowing the direct connection of the HVDVR to the distribution ...
P.C. Loh, D.M. Vilathgamuwa, S.K. Tang, H.L. Long   +3 more
openaire   +1 more source

Research and design of dynamic voltage restorer

IEEE 10th International Conference on Industrial Informatics, 2012
The demand on electrical power quality is ever increasing along with the growing technological advancement. Voltage sag is the most frequently happening problem on power system and might cause great economic loss. To solve this problem, Dynamic Voltage Restorer (DVR) is the most efficient and economic device at present.
Songsong Chen, Jianwei Wang, Wei Gao, Xiaoguang Hu   +3 more
openaire   +1 more source

Supervisory control of dynamic voltage restorers

IEE Proceedings - Generation, Transmission and Distribution, 2004
The impact of system issues on the performance and power rating of dynamics voltage restorers is examined. Algorithms to restore a network voltage sag or swell to given set points have been the subject of significant research in the past. The supervisory control scheme is examined to determine these set points.
Ramachandaramurthy, V. K., Arulampalam, A., Fitzer, C., Zhan, C., Barnes, M., Jenkins, N.   +5 more
openaire   +4 more sources

Voltage Sag Detection Technique for a Dynamic Voltage Restorer

IEEE Transactions on Industry Applications, 2003
Dynamic voltage restorers (DVRs) are used to protect sensitive loads from the effects of voltage sags on the distribution feeder. This paper presents and verifies a novel voltage sag detection technique for use in conjunction with the main control system of a DVR.
Fitzer, Chris, Barnes, Mike, Green, Peter   +2 more
openaire   +2 more sources

A new voltage reference generator for dynamic voltage restorer

2015 IEEE 24th International Symposium on Industrial Electronics (ISIE), 2015
Dynamic voltage restore (DVR) is a well established power device able to compensate voltage disturbances, in especial voltage sags and swells, in the power system. Its main goal is to protect sensitive loads against these disturbances. For this purpose, the precise computation of the DVR compensation voltage reference is a important issue.
Gustavo Medeiros de Souza Azevedo, Francisco A. S. Neves, Valeria S. Santos, Marcelo Cabral Cavalcanti   +3 more
openaire   +1 more source

Transformerless dynamic voltage restorer

IEE Proceedings - Generation, Transmission and Distribution, 2002
The feasibility of achieving dynamic voltage restoration without the use of the injection transformer is investigated. The configuration of a proposed transformerless dynamic voltage restorer (DVR) features separate energy storage capacitors for phase-to-phase isolation, cascaded switches/inverters for the voltage boosting functions and a dynamic ...
B.H. Li, S.S. Choi, D.M. Vilathgamuwa
openaire   +1 more source

The Review of Dynamic Voltage Restorer

Advanced Materials Research, 2013
The dynamic voltage restorer (DVR), as an important electrical installation, can handle the voltage sags and stable the electrical power system. This paper talks about power system operation problems - Voltage dips, then briefly introduces Dynamic Voltage Restorer basic structure and principles, the then mainly complaint about the dynamic voltage ...
Xue Song Zhou, Hao Wu, You Jie Ma
openaire   +1 more source

Mitigation of Voltage Sags by Dynamic Voltage Restorer

Journal of Automation and Control Engineering, 2014
Voltage sag is the most severe type of power quality disturbance faced by many commercial and industrial customers. The proliferation of voltage sag load equipment used in industrial plants may cause tremendous economic and financial losses up to millions of dollars attributed to a single disruption.
Jeyagopi Raman, Arwinder Singh
openaire   +1 more source

Voltage flicker mitigation with dynamic voltage restorer

2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC), 2010
This paper is concerned with a pre-flicker compensation strategy adopted by a dynamic voltage restorer (DVR) to mitigate voltage flicker in a power system. The DVR configuration based on flying capacitor multicell (FCM) converter is proposed to mitigate the voltage flicker because of taking the FCM converter advantages such as transformer-less ...
Arash Khoshkbar Sadigh, Seyed Hossein Hosseini, Mehdi Farasat, Ehsan Mokhtarpour   +3 more
openaire   +1 more source