Results 141 to 150 of about 328 (183)
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10th International Conference on Harmonics and Quality of Power. Proceedings (Cat. No.02EX630), 2004
In this paper an analysis of the line interactive device UPQC (unified power quality conditioner) from a reliability point of view is carried out. A brief description of its topology points out the components constituting it, such as the static transfer switch, the converters, the energy storage unit and the input static switch.
Pievatolo A. +3 more
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In this paper an analysis of the line interactive device UPQC (unified power quality conditioner) from a reliability point of view is carried out. A brief description of its topology points out the components constituting it, such as the static transfer switch, the converters, the energy storage unit and the input static switch.
Pievatolo A. +3 more
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A Novel UPQC based on variable impedance
2021 Power System and Green Energy Conference (PSGEC), 2021A unified power quality controller based on a magnetic flux control tunable reactor is proposed. The magnetic flux control tunable reactor is composed of a voltage source inverter (VSI) and a transformer with an air gap. The power quality controller is divided into two parts: the harmonic open circuit part is connected in series in the system, and the ...
Zhao Shaofeng +5 more
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A Novel Control Strategy for UPQC
2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, 2005UPQC is the powerful tool to settle the power quality problem. This paper presents a novel control strategy of UPQC. It can be used in the system that voltage and current are unbalanced or/and with harmonics. Only the voltages and the currents measured are used in the control, it avoids the transformation like Park transformation of dq0 theory which is
null Shu Hongchun +3 more
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Performance evaluation of R-UPQC and L-UPQC based on a novel voltage detection algorithm
2012 IEEE Symposium on Industrial Electronics and Applications, 2012This paper proposes a new method to detect voltage imperfections such as balanced/unbalanced voltage sag/swell, voltage flicker, and voltage disturbance in a single or three-phase electrical systems with excellent performance characteristics. The proposed method is based on single-phase synchronous d-q reference frame transformation. In contrast to the
B. S. Mohammed +3 more
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2014 9th IEEE Conference on Industrial Electronics and Applications, 2014
Traditional schemes of UPQC and OPEN UPQC are proposed in literature to solve both the voltage quality problem of the load and the current quality problem of the grid. However, the traditional UPQC is not flexible when configured to compensate an industrial park if not all loads are sensitive. The previously proposed OPEN UPQC scheme has the advantages
Tongzhen Wei, Dongqiang Jia
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Traditional schemes of UPQC and OPEN UPQC are proposed in literature to solve both the voltage quality problem of the load and the current quality problem of the grid. However, the traditional UPQC is not flexible when configured to compensate an industrial park if not all loads are sensitive. The previously proposed OPEN UPQC scheme has the advantages
Tongzhen Wei, Dongqiang Jia
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PV integrated UPQC for sensitive Load
2020 International Conference on Emerging Trends in Information Technology and Engineering (ic-ETITE), 2020Unified Power Quality Conditioner system used on the distribution side of power system can be improvised by integrating with renewable energy resources like the photovoltaic system. Photo Voltaic (PV) integrated UPQC compensates for real (P) and reactive power (Q).
S.S. Dheeban, N.B. Muthu Selvan
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Performance of UPQC for Power Quality improvement
2010 Joint International Conference on Power Electronics, Drives and Energy Systems & 2010 Power India, 2010This paper deals with a Unified Power Quality Conditioner (UPQC) for load balancing, power factor-correction, voltage regulation, voltage and current harmonics mitigation, mitigation of voltage sag, swell and voltage dip in a three-phase three-wire distribution system for different combinations of linear and non-linear loads.
Yash Pal, A. Swarup, Bhim Singh
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Operating Region of Single-Phase UPQCs
IEEE 36th Conference on Power Electronics Specialists, 2005., 2006The stationary analysis of a single-phase unified power quality conditioner is introduced. The decomposition of a single-phase waveform into a sum of sine and cosine functions gives a representation of the original signals and at the same time allows to find the operating region of the system.
J.R. Reyes +2 more
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A UPQC controller design based on SMVSC
2013 5th International Conference on Power Electronics Systems and Applications(PESA), 2013To achieve the coordination control of voltage and current compensation with excellent system robust, a unified power quality conditioner (UPQC) controller design procedures based on sliding mode variable structure control (SMVSC) is proposed. First, making use of high self-adaptability and strong robustness of SMVSC, linearization and decoupling ...
Zhou Hailiang +3 more
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Twenty Switch Three Level CHB Based UPQC
IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society, 2019This paper proposes a novel twenty switch three-level cascaded H bridge (CHB) based UPQC for the mitigation of multiple power quality problems. The proposed topology is developed by using five H bridge and two DC link capacitance, so it saves four semiconductor switches and one DC link capacitance compared to the conventional three-level CHB based UPQC.
V. Muneer, Avik Bhattacharya
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