International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Reactive power compensation using STATCOM Mrs. Manisha patel1, Divyesh S. Patel2; Monty J. Chapadiya3; Kevin K. Naik4; Bhavik K.Patel5 1Mrs.
Manisha patel, Head Of Electrical department, Mahavir Swami College of Engg. & Tech., Gujarat, India 2,3,4,5 Students of Electrical Engg, Mahavir Swami College of Engg. & Tech., Gujarat, India
---------------------------------------------------------------------***--------------------------------------------------------------------system such as, series impedance (current, voltage and Abstract - This paper presents a study on phase angle), and shunt impedance can be easily controlled MATLAB/SIMULINK model of STATCOM (Static by using FACTS technology. The main purpose of FACTS synchronous compensator) for reactive power technology is to make system electronically controllable by compensation. The STATCOM is shunt connected FACTS using devices on high voltage side. However, the FACTS device used for improve voltage profile of transmission technology consists of collection of various types of system which connected line with voltage source inverter controllers and these can be applied to the power system (VSI) with DC link capacitor. Reactive power individually or in the combination to control the parameters compensation using STATCOM is used for mitigates [4]. Basically there are four types of FACTS controllers: power loss & improves power factor and voltage profile 1] Shunt Controller in transmission system. In this paper we used PWM technique as control strategy using dq0 transformation 2] Series Controller and also study different results with different percentage 3] Shunt-Series Controller of compensation. It is the best way to overcome the problem of reactive power compensation without 4] Series-Series Controller constructing new transmission lines.
Key Words: MATLAB/SIMULINK, STATCOM, Inverter, Reactive Power, PWM, PCC.
1. INTRODUCTION The main purpose of power system is to generate & transmit power via transmission line to various consumers efficiently. It is a complex process. There are many components takes place in power system, one of the main components to form a major part is the reactive power in the system. Various loads like motor loads and other loads require reactive power for their operation. The majority of power consumption has been drawn in inductive loads. These loads are operated as lagging power factor. The feeder power losses are increased due to reactive power and also the flow of active power is disturbed in distribution system. Reactive power compensation is defined as, to manage reactive power in an efficient way to improve the performance of ac power systems. Different “FACTS (Flexible AC Transmission System)” technologies are used to compensate reactive power. The parameters of the power © 2017, IRJET
|
Impact Factor value: 5.181
|
Fig.1 Block diagram The series controller injects the voltage in series with the transmission line with any phase angle according to driving voltage to control the line current. The shunt controller draws or injects the current into the power system. The combination of shunt and series controller could inject the current via shunt controller of the system and injects the voltage via series controller of the system. These are coordinately control. The combined Series-Series controller provides independent reactive power compensation with the transmission of real power via DC ISO 9001:2008 Certified Journal
|
Page 564