Results 131 to 140 of about 256 (163)

A New Coordinated Operation Strategy for Unified Power Quality Conditioner (UPQC)

2018 IEEE 27th International Symposium on Industrial Electronics (ISIE), 2018
This paper proposes a new coordinated operation strategy to improve the low utilization rate of series inverter in traditional unified power quality conditioner (UPQC), and to fully optimize the total capacity of UPQC. When source voltage is in the normal range, the series inverter compensates part of reactive power by reducing the source power factor ...
Qunhai Huo, Dongqiang Jia, Tongzhen Wei, Jingyuan Yin   +3 more
openaire   +1 more source

Instantaneous power theory based Unified Power Quality Conditioner (UPQC)

2010 Joint International Conference on Power Electronics, Drives and Energy Systems & 2010 Power India, 2010
This paper presents a novel control strategy for the case of 3-phase 3-wire Unified Power-Quality Conditioner (UPQC) based on the concepts of instantaneous active and reactive Power theory. The UPQCs is one of the major custom power solutions capable of mitigating the effect of supply voltage sags / swells, distortion, unbalance voltage at the point of
K. Palanisamy, J Sukumar Mishra, I. Jacob Raglend, D. P. Kothari   +3 more
openaire   +1 more source

Voltage quality enhancement using unified power quality conditioner (UPQC)

2017 International Conference on Energy, Communication, Data Analytics and Soft Computing (ICECDS), 2017
Recently power quality has become more important issue. Day by day in industries and in distribution area power electronics based device are widely used and creates more power quality problems. The quality of the power is defective by certain reasons. This improvement of the quality of the power is seen e.g. as sag, swell, over voltages, under voltage,
Saurabh S. Jadhao, Gajanan P. Ratnaparkhi, G.M. Dhole, S.R. Paraskar   +3 more
openaire   +1 more source

Minimization of VA loading of Unified Power Quality Conditioner (UPQC)

2009 International Conference on Power Engineering, Energy and Electrical Drives, 2009
The Unified Power Quality Conditioner (UPQC) is a versatile device which could function as series active filter and shunt active filter. UPQC can simultaneously fulfill different objectives like, maintaining a balanced sinusoidal (harmonic free) nominal voltage at the load bus, eliminating harmonics in the source currents, load balancing and power ...
G. Siva Kumar, P. Harsha Vardhana, B. Kalyan Kumar, Mahesh Kumar Mishra   +3 more
openaire   +1 more source

A novel control strategy for unified power quality conditioner (UPQC)

2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference. Proceedings (Cat. No.02CH37289), 2003
This paper presents a novel and easy to implement control strategy for unified power quality conditioner (UPQC). This control strategy is usable in three-phase three-wire utilities. The control strategy of parallel active filter (PAF) is based on combination of extended p-q theory and instantaneous symmetrical components theory while the control ...
M.T. Haque, T. Ise, S.H. Hosseini
openaire   +1 more source

A new control scheme for unified power quality conditioner (UPQC)

2011 3rd International Conference on Electronics Computer Technology, 2011
This paper presents a solution to the control of a unified power quality (PQ) conditioner (UPQC) for Power Quality improvement in power distribution systems. The problem formulation allows not only harmonic compensation but also voltage sags/swells, load demand changes, and power factor correction to be tackled in a unified framework.
R. Rajasree, S. Premalatha, M. Arun Bhaskar, V. Meenatchi, B. Vidya, S. Suresh Kumar   +5 more
openaire   +1 more source

Mitigation of Power Quality Problems Using Fuzzy Logic-Based Unified Power Quality Conditioner (UPQC)

Journal Européen des Systèmes Automatisés, 2023
This suggested research work provided a distributed generator-based unified power quality conditioner with a decreased rating and a star-connected transformer as a means of enhancing power quality. The unified power quality conditioner (UPQC), a Y-connected transformer, and an LC filter are all included in this work.
K. Sai Kumar, Sayanti Chatterjee, P. Siva Kumar, Ranjith Kumar Gatla, A. Naresh Kumar   +4 more
openaire   +1 more source

A simple new control technique for unified power quality conditioner (UPQC)

2004 11th International Conference on Harmonics and Quality of Power (IEEE Cat. No.04EX951), 2005
It is expected that, in future, utility service providers will enforce more strict power factor and harmonic standards. Therefore, efforts are being made so that power electronic system or any other load drawing reactive volt-amperes is made to appear as linear load drawing current in-phase with the utility voltage.
V. Khadkikar, P. Agarwal, A. Chandra, A.O. Barry, T.D. Nguyen   +4 more
openaire   +1 more source

A Novel Hybrid Unified Power Quality Conditioner (UPQC) for Medium-Voltage Power Grid

Advanced Materials Research, 2013
This paper proposed a three-phase three wire UPQC (hybrid UPQC). The topology is novel which consists of a series and a hybrid shunt filters. The unique topology can reduce the capacity of power devices in the hybrid UPQC when compensating source harmonic currents. In this paper a detailed design about the main circuit is presented.
Tian Bo Zhu, Hua Geng
openaire   +1 more source

A new reference waveform estimation strategy for unified power quality conditioner (UPQC)

2010 IEEE International Energy Conference, 2010
In this paper, a new reference waveform estimation strategy based on an adaptive notch filter (ANF) is proposed for unified power quality conditioner (UPQC). Two coupled ANFs are used to generate the reference waveforms for shunt and series components of UPQC. Mathematical properties of proposed algorithm are presented in detail.
M. Hosseini Abardeh, R. Ghazi
openaire   +1 more source