ABSTRACT:
This paper presents simulation model of the 132KV transmission
line with comparison of ANN based STATCOM and conventional PI based STATCOM.
The STATCOM being the state-of-the-art VSC based dynamic shunt compensator in FACTS
family is used now a days in transmission system for reactive power control,
increase of power transfer capacity, voltage regulation etc. Such type of
controller is applied at the middle of the transmission line to enhance the
power transmission capacity of the line. The simulation result shows that the
STATCOM is effective improve the power factor and voltage regulation for the
132kV line loading.
KEYWORDS:
1.
STATCOM
2.
PI
3.
ANN control strategy
4.
MatLab simulink
SOFTWARE: MATLAB/SIMULINK
BLOCK DIAGRAM:
Fig
1: Schematic Representation of the Control Circuit.
EXPECTED SIMULATION RESULTS:
Fig
2 1-phase current and voltage waveform using STATCOM
Fig3
Phase Current and Voltage waveform when the STATCOM is ON
Fig
4Phase Current and Voltage waveform when Load is Varied in the system
Fig
5 Phase Current and Voltage waveform when suddenly a Load is remove from the
system at 0.4sec
Fig
6 3-phase current and voltage waveform using STATCOM
Fig
7 Active and Reactive power flow in Transmission system using STATCOM
Fig8
1-phase current and voltage waveform for STATCOM using ANN
Fig
9 Phase Current and Voltage waveform when the STATCOM is ON
Fig
10 1 Phase Current and Voltage waveform when Load is Varied in the System
Fig11
3-phase voltage and current waveform for STATCOM using ANN
CONCLUSION:
The
paper present that the STATCOM bring the power factor to the unity thereby
enhancing the power transfer capability by supplying or absorbing controllable
amount of reactive power. By using a STATCOM with ANN controller and the
Response time is faster comparing to the PI Controller because of this voltage
regulation maintained within a limit. More over ANN Controlled STATCOM will
improve the stability of the system and improve the dynamic performance of the
system.
REFERENCES:
[1]
B.Sing ,R.saha, A.Chandra “Static Synchronous Compensator (STATCOM): a review”
IET Power Electronic 2008
[2]
N.G Hingroni and I Gyugyi. “Understanding FACTS: Concepts and Technology of
flexible AC Transmission System”, IEEE Press, New York, 2000.
[3]
D.J Hanson, M.L.Woodhouse, C.Horwill “STATCOM: a new era of Reactive
Compensation” Power Engineering Journal June 2002
[4]
Mustapha Benghanem — Azeddine Draou” A NEW MODELLING AND CONTROL ANALYSIS OF AN
ADVANCED STATIC VAR COMPENSATOR USING A THREE–LEVEL (NPC) INVERTER TOPOLOGY”
Journal of ELECTRICAL ENGINEERING, VOL. 57, NO. 5, 2006, 285–290
[5]
Jagdish Kumar, Biswarup Das, and Pramod Agarwal “ Modeling of 11- Level Cascade
Multilevel STATCOM” International Journal of Recent Trends in Engineering, Vol
2, No. 5, November 2009
