Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

Modeling of a Chain Link Statcom in EMTP-RV

Authors: N. M. Shah; Vijay Kumar Sood; V. Ramachandran;

Modeling of a Chain Link Statcom in EMTP-RV

Abstract

This paper describes an alternative circuit arrangement to form a static synchronous compensator (STATCOM), by connecting a number of gate turn off (GTO) thyristor converter 'chain links' in series per phase on the AC side of the system. Each GTO converter forms one 'link' of a 1-phase bridge voltage-sourced converter (VSC) and is referred to as a 'chain link converter'. In the proposed scheme, each GTO is switched 'ON' and 'OFF' once per cycle of the fundamental frequency by using a sinusoidal pulse width modulation (SPWM) technique. This SPWM technique uses two triangular carrier bands - one positive and one negative - per link, and has a carrier frequency of twice the fundamental frequency and one modulating signal for all the links. A 1-phase, 3-link STATCOM is modelled in EMTP-RV and evaluated. The 1-phase version is suitable for analysis purposes at this stage to gain insight into the operational behavior of this special type of STATCOM. A 3-phase version of this topology will be implemented next. The proposed STATCOM is connected at the end point of a radial transmission line to stabilize the voltage by compensating the reactive power at the point of connection. The performance of this STATCOM is analysed by using open loop control under both steady state and transient operating conditions. An open loop control is employed here as a preliminary step towards the subsequent controller design by evaluating the behavior of the STATCOM for different values of control inputs under different operating conditions. The details of the model along with the results of the preliminary simulation tests in EMTP-RV are presented here

Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    3
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
3
Average
Average
Average
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!