Power Quality Improvement in Utility Grid using Single Phase Micro Sources, DSTATCOM and Distributed Generators
Abstract
utility connected grid by using converter based single
phase micro sources. T he voltage unbalance can be
severe if single-phase rooftop mounted PVs are
distributed randomly between the households.
Moreover, there can also be single-phase nonlinear
loads present in the system. The cumulative effect of
all these will cause power quality problem at the
utility side. To counteract this problem, we have
proposed t wo different schemes. In this first
scheme a distribution static compensator (DSTATCOM
) is connected at the utility bus to
improve the power quality. The DSTATCOM only
supplies reactive power and no real power. In the
second scheme, a larger three-phase converter
controlled DG is placed that not only supplies the
reactive power but also provides active power. The
efficacies of the controllers have been validated
through simulation for various operating
conditions using MATLAB/SIMULINK.
References
B. K. Bose, “Energy, environment, and
advances in power electronics,” IEEE Trans. on
Power Electronics, vol. 15, pp. 688–701, July 2000.
X. Yoasuo, C. Liuchen, B. K. Soren, B. Josep
and S. Toshihisa, “Topologies of single-phase
inverters for small distributed power generators: an
overview”, IEEE Trans. on Power Electronics, vol.
, pp. 1305-1314, Sep 2004
T. E. McDermott, R. C. Dugan, “Distributed
generation impact on reliability and power quality
indices” Rural Electric Power Conference, 2002, pp
D3-D3_7.
Y. W. Li, D. M. Vilathgamuwa and P. C. Loh,
“A grid-interfacing power quality compensator for
three-phase three-wire microgrid applications,” IEEE
Trans on Power Electronics, Vol. 21, Issue 4, pp.
- 1031, July 2006
A. Ghosh, A. K. Jindal and A. Joshi,
“Inverter control using output feedback for power
compensating devices,” Proc. IEEE Asia-Pacific
Region-10 Conference TENCON, Bangalore, pp. 4952,
October
A. Ghosh and G. Ledwich, "Load
compensating DSTATCOM is weak ac systems,"
IEEE Trans. Power Delivery, Vol. 18, No. 4, pp.
- 1309, 2003.
W. Freitas, A. Morelato, X. Wilsun and F.
Sato, “Impacts of ac generators and DSTATCOM
devices on the dynamic performance of
distributionsystems,” IEEE Trans. On Power
Delivery, Vol. 20, No. 2, pp.
-1501, 2005.
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