Results 161 to 170 of about 11,868,722 (204)

Compensation of voltage flicker using Unified Power Quality Conditioner (UPQC)

2014 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2014
Voltage flicker, which is a repetitive voltage magnitude change of low frequency, is one of the power quality problems. The problem is aggravated with the use of non-linear load. The paper presents the use of a Unified Power Quality Conditioner (UPQC) as a solution to voltage flicker. A simple control technique is proposed to control UPQC.
Pramod Agarwal, Premalata Jena
exaly   +2 more sources

Three phase unified power quality conditioner (UPQC) for power quality improvement by using UVTG technique

2013 International Conference on Renewable Energy and Sustainable Energy (ICRESE), 2013
This paper presents the simulation of the unified power quality conditioner (UPQC) to mitigate voltage harmonics, voltage sag, voltage swell & current harmonics. The UPQC consists of series and shunt active power filter (APF), which are connected in cascade via a common dc-link capacitor.
S. N. Gohil, M.V. Makwana, K.T. Kadivar, G. J. Tetar   +3 more
exaly   +2 more sources

MMC-UPQC: Application of Modular Multilevel Converter on Unified Power Quality Conditioner

2013 IEEE Power & Energy Society General Meeting, 2013
This paper is presented a topology of Unified Power Quality Conditioner (UPQC) based on Modular Multilevel Converter (MMC), which can compensate all kinds of disturbance from the supply voltage by the series Active Power Filter (APF) and reactive power, harmonic currents generated by nonlinear load by the shunt APF.
Yunbo Long, Yonghai Xu, Xiangning Xiao
exaly   +2 more sources

Simple control strategies of the active filters within a unified power quality conditioner (UPQC)

2017 International Conference on Modern Power Systems (MPS), 2017
Unified power quality conditioner (UPQC) consists of combined shunt and series active power filters for improving both the power quality on the source side and on the load side. The paper presents a simple method for controlling the series filter under unbalanced and distorted load conditions by using a three phase locked loop (PLL).
Sergiu Ivanov
exaly   +2 more sources

Review on Unified Power Quality Conditioner (UPQC) to mitigate power quality problems

2021 2nd Global Conference for Advancement in Technology (GCAT), 2021
For the normal working of the electrical apparatus customers want an uninterrupted flow of sinusoidal voltage and current of continual magnitude and frequency at the AC mains. Although the generated voltage at power plants is almost sinusoidal but our current power system has wide range of electrical apparatus some of which are non-linear in nature ...
Nirmal Kr. Agarwal, Abhinav Saxena, Amurt Prakash, Anushka Singh, Aayush Srivastava, Abhishek Baluni   +5 more
openaire   +1 more source

Conceptual Study of Unified Power Quality Conditioner (UPQC)

2006 IEEE International Symposium on Industrial Electronics, 2006
This paper deals with conceptual study of unified power quality conditioner (UPQC) during voltage sag and swell on the power distribution network. One of the peculiarities of UPQC is that it can inject voltage from 0deg to 360deg. Based on this injected voltage phase angle with respect to the utility or PCC voltage phase angle, UPQC can absorb or ...
V. Khadkikar, A. Chandra, A. Barry, T. Nguyen   +3 more
openaire   +1 more source

A single phase unified power quality conditioner (UPQC)

2016 IEEE International Conference on Power System Technology (POWERCON), 2016
This paper proposes a simple power circuit topology for single phase unified power quality conditioner (UPQC). The number of power circuit switches of conventional single-phase UPQC is reduced to half and hence it has resulted in considerable reduction of cost, weight, volume, protection circuits, power losses and control circuit complexity.
M. Tarafdar Hagh, M. Sabahi
openaire   +1 more source

Unified power quality conditioner (UPQC): the principle, control and application

Proceedings of the Power Conversion Conference-Osaka 2002 (Cat. No.02TH8579), 2003
This paper deals with unified power quality conditioner (UPQC), which aims at the integration of series-active and shunt-active power filters. The main purpose of a UPQC is to compensate for voltage imbalance, reactive power, negative-sequence current and harmonics.
null Gu Jianjun, null Xu Dianguo, null Liu Hankui, null Gong Maozhong   +3 more
openaire   +1 more source

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   +2 more sources

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