Today India is a major player in the global wind
energy and as compared to develop countries Indian grid
system is very weak also having poor infrastructure.
Considering the increasing share of wind generation interfaced
to grid it is necessary to study power quality issues. Power
quality problems such as voltage sag and swell are some major
concern. In this paper these issues are analyzed. Wind turbine
connected to squirrel cage induction generator is modelled
using PSCAD simulation software to analyse the said issues
where STATCOM is introduced as an active voltage and
reactive power supporter to increase the power system
stability. STATCOM unit is developed to inject reactive power
for mitigation of power quality problems and to get stable grid
operation.
D. P. Kadam : Department of Electrical Engineering, K. K. Wagh Institute of Engineering Education & Research,
Panchawati, Nasik 422003, M.S., India
Dr. B. E. Kushare : Department of Electrical Engineering, K. K. Wagh Institute of Engineering Education & Research,
Panchawati, Nasik 422003, M.S., India
Squirrel Cage Induction Generator (SCIG)
PSCAD
Wind Turbine Generator (WTG)
Static
Synchronous Compensator (STATCOM)
Power Quality
This paper has investigated the application of
STATCOM to wind farm equipped with Squirrel Cage Induction Generators to study reactive power supporter
during wind variation and symmetrical & unsymmetrical
fault condition. A simulation on model of large scale
wind farm is designed in PSCAD software to study the
voltage sag & swell mitigation using STATCOM. The
study has demonstrated that an additional active
voltage/var support produced by a STATCOM can
significantly improve the recovery of wind turbines from
fault since this device can make a faster restoration of
the voltage, improving the stability limit conditions of
the induction generators.
The simulation results provide a clear qualitative
verification of transient margin increase in the wind
energy conversion system with STATCOM when
compared to the system without the STATCOM support.
[1] J. G. Slootweg and W. L. Kling, “Modelling of Large
Wind Farms in Power System Simulations”, Paper
published in IEEE Conference, PP. 503-508, 2002.
[2] J. Bhagwan Reddy, D. N. Reddy, “Reliability
Evaluation of a Grid Connected Wind Farm-A case
Study of Ramgiri Wind farm in Andhra Pradesh,
India”, Paper published in IEEE Conference, PP. 659-
662, 2004.
[3] R. Grunbaum, P. Halvarsson, D. Larsson, P. R. Jones,
“Conditioning of Power Grids serving Offshore Wind
Farms based on Asynchronous Generators”, ABB
Power Technologies, Sweden, PP. 34-39, 2004.
[4] Mazen Abdel- Salam, Adel Ahmed Mahmoud
Mahrous, “Steady- state and transient analyses of wind
farm connected to an electric grid with varying
stiffness”, Proceedings of the 14th International Middle
East Power Systems Conference, Cairo University,
Egypt, Dec. 19-21, 2010 PP. 203-208, 2010.
[5] R. Venkatesh, “Power Quality issues and Grid
interfacing of wind Electric Generators and Design of
an Optimal reactive Power Compensation System for
Wind farms”
[6] Kadam D. P. and Dr. Kushare B. E. “Dynamic
Behaviour of Large Scale Wind Farm”, International
Journal of Electrical Engineering, Volume 5, Number
6, PP. 757-764, 2012.
[7] Kadam D. P. and Dr. Kushare B. E. “Overview of
Different Wind generator Systems and their
comparisons”, International Journal of Engineering
Science & Advanced Technology, Volume 2, Issue-4,
PP. 1076-1081, 2012.
[8] S. M. Muyeen, Mohammad Abdul Mannan, Mohd.
Hasan Ali, Rion Takahashi, Toshiaki Murata, Junji
Tamura, “Stabilization of Grid Connected Wind
Generator by STATCOM”, Paper published in IEEE
PEDS 2005 Conference, PP. 1584-1588, 2005.
[9] Lie Xu, Yao and Christian Sasse, “Comparison of
Using SVC and STATCOM for Wind Farm
Integration”, IEEE Proceedings of the International
conference on Power System Technology, PP. 1-7,
2006.
