http://www.iaeme.com/IJEET/index.asp 32 editor@iaeme.com International Journal of Electrical Engineering & Technology (IJEET) Volume 7, Issue 5, September–October, 2016, pp.32–43, Article ID: IJEET_07_05_004 Available online at http://www.iaeme.com/IJEET/issues.asp?JType=IJEET&VType=7&IType=5 ISSN Print: 0976-6545 and ISSN Online: 0976-6553 Journal Impact Factor (2016): 8.1891 (Calculated by GISI) www.jifactor.com © IAEME Publication SRF THEORY BASED STATCOM FOR COMPENSATION OF REACTIVE POWER AND HARMONICS Satyanarayana Gorantla Associate Professor in EEE Department, Anurag Engineering Collage, Kodad & Research Scholar in A.N.U, Andhra Pradesh, India. Dr. Goli Ravi Kumar HOD of EEE Department, Bapatla Engineering College, Andhra Pradesh, India. ABSTRACT The power electronic devices like converters and inverters inject harmonic currents into AC system due to their non linear characteristics. These devices draw high amount of reactive power from source. The commencement of Nonlinear Load into the ac power system will have the effect of harmonics. The presence of harmonics in system it will effected with power quality problems. Due to this high amount of power losses and disoperation of power electronics devices is caused, along with this Harmonics have a number of undesirable effects like Voltage disturbances. These harmonics are needed to mitigate for Power Quality Enhancement in distributed system. Here the device called STATCOM is one of the FACTS Devices which can be used to mitigate the harmonics and reactive power compensation. The voltage source converter is core of the STATCOM and the hysteresis current control is indirect method of controlling of VSC. In this paper we implement with SRF based STATCOM control. SRF theory is implemented for the generation of controlling reference current signals for controller of STATCOM. The Matlab\Simulink based model is developed and simulation results are showed for linear and nonlinear load conditions. Key words: Harmonics compensation, Power quality, Reactive power, STATCOM, Synchronous reference frame theory (SRF). Cite this Article: Satyanarayana Gorantla and Dr. Goli Ravi Kumar, SRF Theory Based STATCOM for Compensation of Reactive Power and Harmonics. International Journal of Electrical Engineering & Technology, 7(5), 2016, pp. 32–43. http://www.iaeme.com/IJEET/issues.asp?JType=IJEET&VType=7&IType=5 1. INTRODUCTION In Modern distribution systems have very complex networks connected with linear and Non linear loads. Generation of electricity without any power quality is very complex, so in power system faces various types of power quality problems which vary in their scope and severity. While delivering power to the consumers, power quality is the most important criteria to look for. Power quality is how far the practical