PLL Implementation and Reactive Power Compensation

  • K. Suman Asst. Professor, CVR College of Engineering, EEE Department, Hyderabad, India
  • N.N.V. Surendra Babu Professor, CVR College of Engineering, EEE Department, Hyderabad, India

Abstract

Phase locked loop (PLL) plays significant role in connecting a power electronic converter to the grid. A PLL can be implemented with software or hardware. In this paper, PLL is developed in MATLAB/SIMULINK using harmonic oscillator. The PLL can extract exact supply frequency information under balanced grid voltages. Static Synchronous Compensator (STATCOM) is a shunt connected Flexible AC Transmission Systems (FACTS) device which can able to absorb or generate reactive power. STATCOM is used in power transmission systems for reactive power compensation, load balancing etc. Secondly, a two level voltage source inverter based STATCOM is presented for reactive power compensation. A control strategy is developed for DC link voltage balance and instantaneous reactive power compensation. To validate the effectiveness of the control scheme, simulation study is done in MATLAB/SIMULINK for different load conditions.

Published
2019-08-15
Issue
Vol 12 (2017): CVR Journal of Science and Technology
Section
Articles

Copyright (c) 2017 Creative Commons Licence CVR Journal of Science & Technology by CVR College of Engineering is licensed under a Creative Commons Attribution 4.0 International License.

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.