Research on Power Quality Improvement in Distribution System with Induction Motor Load Using Fuzzy Logic Controlled UPQC | Chapter 2 | Advanced Aspects of Engineering Research Vol. 7

 The operation of a unified power quality conditioner (UPQC) as a universal active power conditioning device to minimise both current and voltage distortions at the distribution end of a power system network is described in this study. The UPQC is made up of a common DC link capacitor shared by a series active power filter (DVR) and a shunt active power filter (DSTATCOM). A fuzzy logic controller controls the series compensator, which is used to restore voltage. The operation of the shunt compensator is controlled by extracting d axis and q axis current from load current and maintaining DC link voltage with a fuzzy logic controller. The speed and accuracy with which compensating signals are generated determines how well UPQC performs. Simulation findings are used to investigate the steady state and dynamic behaviour of the control circuit under various load current and/or utility voltage situations. With a fairly simple control circuit setup, the described technique offers an adequate dynamic response. An induction motor load is used to test the planned UPQC. Under these load situations, it can reduce voltage sag/ swell, reactive power adjustment, voltage fluctuations, harmonic elimination, and so on. UPQC simultaneously and independently mitigates voltage and current-based distortion. MATLAB/simulink is used to validate the proposed system and controller. The simulation results show that the THD is low and that the compensation is perfect.

Author(s) Details

R. Senthil Kumar
Department of Electrical and Electronics, SNS College of Technology Coimbatore, India.

C. Vivekanandan
Dr.NGP Institute of Technology Coimbatore, India.

View Book :- https://stm.bookpi.org/AAER-V7/article/view/960

Advanced Study on Performance Analysis of Three- Phase DVR with Modified Switching Band Controller | Chapter 8 | Emerging Trends in Engineering Research and Technology Vol. 11

 This paper deals with the mitigation of PQ related voltage problems by using three-phase neutral clamped VSI topology to realise the DVR and DVR configuration for the selection of appropriate inductor interface, resistance and capacitance of the DC capacitor storage sequence. For any country's sustainable growth, quality and reliable power are important. Three-phase four wire DVR with changed switching band controller topology is suggested here which overcomes the frequent violation of the band, low controllability and strong philtre currents and traditional philtre topology compared to three-phase four wire DVR. Based on simulation studies, the compensation potential of the proposed topology is evaluated and the resulting results are compared with different switching control results. Tactics. In various switching control techniques, the resulting merits and demerits are addressed in VSI switching loss, ripple in compensated load voltages and error between reference injected voltages and actual injected voltages. From the study, it is noted that the precise reference injected voltages are created from SRF theory and PLL provides unique rotational speed.

Author (s) Details

Dr. Vasudeva Naidu Pudi
Electrical Department, Matrusri Engineering College, Hyderabad, India.

Dr. Srinivasa Rao Sura
Electrical Department, GITAM, Vishakhapatnam, India.

Mr. Prasad Bolla
Electrical Department, GITAM, Hyderabad, India.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/335