Abstract
This paper presents frequency domain method for harmonic analysis of space vector based STATCOM. Space Vector Pulse Width Modulation (SVPWM) method is an advanced PWM method. It is a best method among all the PWM techniques. It provides a freedom in a switching cycle for placement space vector. In this paper, the SVPWM is used for switching of STATCOM. The harmonic (or frequency) domain is a steady-state form of harmonic analysis method, which represents converters to their harmonic spectra. This paper presents harmonic analysis by means of harmonic domain for space vector based Static shunt converter (STATCOM). Performance of the STATCOM is evaluated in harmonic domain simulation studies in MATLAB environment.
Highlights
Harmonic in power system is introduced by highly non-linear devices and it degrades its performance
Due to recent development in the semiconductor technology and availability of high power switches e.g. Insulated Gate Bipolar Transistor (IGBT) and Gate Turn off Thyristor (GTO) have widespread acceptance in for high power Voltage Source Converter (VSC)’s, which are used for HVDC converters and flexible AC transmission system (FACTS) controllers
To extend the results obtained by other authors in the modeling of STATCOM FACTS device, the proposed Space Vector Pulse Width Modulation (SVPWM) VSC based STATCOM model is developed in order to be able to obtain the evolution in harmonic components of the STATCOM signal
Summary
Harmonic in power system is introduced by highly non-linear devices and it degrades its performance. (2016) Harmonic Domain Modelling of Space Vector Based STATCOM. Chandrakar performance of these devices is frequency domain analysis [1] [2] Harmonic phasor contains both positive and negative frequency terms for phase dependence. The Harmonic (frequency) Domain method is used for power system analysis in the steady state to model the coupling between phases and between harmonics. Previous work conducted in harmonic domain has been primarily focus on modeling PWM, multi-module, selective harmonic elimination based STATCOM [11]. To extend the results obtained by other authors in the modeling of STATCOM FACTS device, the proposed SVPWM VSC based STATCOM model is developed in order to be able to obtain the evolution in harmonic components of the STATCOM signal. This paper presents the harmonic analysis of SVPWM based SSSC during steady state condition. Fourth section deals with harmonic domain modeling of SVPWM VSC used for STATCOM
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