27-07-2012, 04:01 PM
Behavioral Study of TCSC Device – A MATLAB/Simulink Implementation
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INTRODUCTION
RAPID increase in power demand according to forecast
made in 17th Electrical power Survey India[11], will rise
to peak value of 152746MW by 2011-12, that is more
than the double of 75,756 MW, what was required in 2003.
This cannot be achieved by installing new power station and
erecting more transmission line in the scheduled period of
forecast. To meet rising demand of power, FACTS devices are
introduced in the transmission line to enhance its power
transfer capability; either in series or in shunt. The series
compensation are an economic method of improving power
transmission capability of the lines [1][2][4]. Note it is not
possible to compromise the 2011-12th demand, but meanwhile
for installing and erecting periods.
OPERATION OF TCSC
The basic operation of TCSC can be easily explained from
circuit analysis. It consists of a series compensating capacitor
shunted by a Thyristor controlled reactor (TCR). TCR is a
variable inductive reactor XL (figure 2) controlled by firing
angle α. Here variation of XL with respect to α is given by
BENEFITS OF TCSC DEVICE IN TRANSMISSION LINE
The development and applications of TCSC device adds
advantage of not only increasing the transmission line
capacity, also improves the power oscillation damping (POD),
sub synchronous resonance (SSR) mitigation and transient
stability. Research works are mainly focused on improving
SSR mitigation, power oscillation damping, and transient
stability, which in turn increases the reliability of the system.
CONCLUSION
The main purpose of this paper is to lay a strong foundation
on TCSC. From that point, this paper precisely explained
about the operation, characteristic curve and resonance
condition of TCSC. This paper inspects the single and multi
resonance condition for different value of inductance by
MATLAB simulation.