In this paper a novel control method based on Synchronous Reference Frame Theory (SRFT) is proposed to compensate power quality problems through a three- phase Unified Power Quality Conditioner (UPQC) under unbalanced and distorted load conditions. The performance of the proposed system has been verified using MATLAB-SIMULINK and are discussed in detail in this paper.
Inhaltsverzeichnis
- I. INTRODUCTION
- II. UPQC
- III. SRF TECHNIQUE
- IV. UPQC CONTROL ALGORITHM
- A. Reference Voltage Signal Generation for Series APF
- B. Reference Current Signal Generation for Shunt APF
- V. SIMULATION RESULTS
- VI. CONCLUSION
- REFERENCES
Zielsetzung und Themenschwerpunkte
This paper proposes a novel control method based on Synchronous Reference Frame Theory (SRFT) to address power quality issues using a three-phase Unified Power Quality Conditioner (UPQC) under unbalanced and distorted load conditions. The effectiveness of the proposed system is demonstrated through MATLAB-SIMULINK simulations.
- Power quality issues in distribution systems
- Unified Power Quality Conditioner (UPQC) for voltage and current compensation
- Synchronous Reference Frame (SRF) control technique
- Harmonic and distortion mitigation
- Simulation results and analysis
Zusammenfassung der Kapitel
The paper begins by introducing the problem of power quality issues in distribution systems, which are caused by the increasing use of non-linear loads and power electronics devices. The paper then presents the concept of the Unified Power Quality Conditioner (UPQC) as a solution to these problems. The UPQC consists of a series active filter and a shunt active filter connected back-to-back through a common DC link. The series filter compensates for voltage harmonics and distortions, while the shunt filter compensates for current harmonics and reactive power.
The paper then describes the Synchronous Reference Frame (SRF) technique, which is used to extract harmonics from supply voltages or currents. The SRF method involves transforming three-phase quantities into a rotating reference frame, which allows for easy separation of harmonics and fundamental components. The paper then presents the proposed UPQC control algorithm, which utilizes the SRF technique to generate reference signals for both the series and shunt active filters.
The paper concludes with a discussion of the simulation results, which demonstrate the effectiveness of the proposed control strategy in mitigating voltage sags, swells, and current harmonics under unbalanced and distorted load conditions. The simulation results show that the UPQC effectively isolates the load from the source voltage disturbances and provides a balanced and sinusoidal current to the source.
Schlüsselwörter
The key terms and focus themes of the text include Unified Power Quality Conditioner (UPQC), Synchronous Reference Frame (SRF), power quality, voltage harmonics, current harmonics, unbalanced loads, distorted loads, harmonic compensation, and simulation results.
- Citation du texte
- Akshay Kumar (Auteur), 2014, Harmonic Compensation of Voltage and Current Using UPQC, Munich, GRIN Verlag, https://www.grin.com/document/278319
