STATCOM for Improved Dynamic Performance of Wind
Farms in Power Grid
ABSTRACT:
Application of FACTS controller called Static Synchronous
Compensator STATCOM to improve the performance of power grid with Wind Farms is
investigated .The essential feature of the STATCOM is that it has the ability
to absorb or inject fastly the reactive power with power grid . Therefore the
voltage regulation of the power grid with STATCOM FACTS device is achieved.
Moreover restoring the stability of the power system having wind farm after
occurring severe disturbance such as faults or wind farm
mechanical power variation is obtained with STATCOM controller .
The dynamic model of the power system
having wind farm controlled by proposed STATCOM is developed . To Validate the
powerful of the STATCOM FACTS controller , the studied power system is simulated
and subjected to different severe disturbances . The results prove the
effectiveness of the proposed STATCOM controller in terms of fast damping the
power system oscillations and restoring the power system stability .
KEYWORDS:
1.
STATCOM
2.
Wind Generation
3.
Transient Stability
SOFTWARE: MATLAB/SIMULINK
BLOCK DIAGRAM:
Fig. 1 Studied model
CONCLUSION:
Power
system with wind farms performance can be improved using FACTS devices such as
STATCOM . The dynamic model of the studied power system is simulated using
Simulink Matlab package sofware . To validate the effect of the STATCOM
controller of power system operation , the system is subjected to different
disturbances such as faults and power operating conditions . The digital
results prove the powerful of the proposed STATCOM controller in terms of
Stability improvement, power swings damping, voltage regulation, increase of
power transmission and chiefly as a supplier of controllable reactive power to
accelerate voltage recovery after fault occurrence.
REFERENCES:
[1] V. Akhmatov, H.knudsen, A.H. Nielsen,
J.K.pedersen, and N.K. poulsen, "A dynamic stability limit of grid
connected induction generators", Pro. International IASTED conference on
power and energy systems, marbella, spain, 2000.
[2]
L. holdsworth, X.G. Wu, J.B. EKanayake, and N. Jenkins, "Comparison of
fixed-speed and doubly-fed induction generator wind turbines during power
system disturbances", IEE proc. C-Gener. Transm. Distrib., vol. 150, no.
3, pp. 343-352, 2003.
[3]
S.M. Bolik, "Grid requirments challenges for wind turbines", Fourth International
Workshop on large-scale Integration of Wind Power and transmission networks for
Offshore Wind Farms, Oct .2003.
[4]
L. Holdsworth, N.Jenkins, and G. Strbac, "Electrical stability of large, offshore
wind farms", IEE seventh International Conference on AC-DC power
Transmission, pp.156-161-2001.
[5]
X.G. Wu, A.Arulampalam, C. Zhan, and N.jenkins, "Application of a static
reactive power compensator (STATCOM) and a dynamic braking resistor (DBR) for
the stability enhancement of a large wind farms", Wind Engineering
Journal, vol. 27, no.2, pp.93-106, March2003.