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Abstract
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Article Information:
Investigation of Energy Storage Devices Impact on Improvement of Power Quality Aspects
F. Gharedaghi, M. Deysi, H. Jamali and A. Khalili
Corresponding Author: F. Gharedaghi
Submitted: 2011 September, 23
Accepted: 2011 October, 16
Published: 2012 March, 15 |
Abstract:
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Energy production and storage are in the midst of some major changes. During the past decade,
energy production and storage have become a high priority for business and government because of concerns
relating to the environment and sustainability of energy sources. The power quality problems that have occurred
on the existing, aging system will continue to worsen as intermittent, renewable energy systems are added. Fastacting
energy storage is required to help combat this problem. Among the many FACTS devices which can
improve the power system operation and power quality problems, Static Compensator (STATCOM) and
Unified Power Flow Controller (UPFC) are of the most promising new FACTS technologies. Both of these
devices utilize capacitors as the dc bus. Since capacitors are passive elements with very limited energy storage,
they cannot provide controllable real power for extended period. This paper investigates the impact of
integrating a Battery Energy Storage System (BESS) and/or a Superconducting Magnetic Energy Storage
(SMES) across the dc bus of STATCOM. This will allow fast control of both real and reactive power to
improve power system transient stability and to provide extra damping against power system oscillation in a
multi-area system linked by weak inter-connection. Comparative dynamic performances of these devices are
presented in this study. A control strategy is proposed to integrate these devices to improve the active power
management within the constraints of the power system to which the device is connected. The proposed
controller based on hysterisis control ensures unity power factor and sinusoidal supply current irrespective of
the variation in the load demand waveform and magnitude. Results from simulation studies using realistic
model of the power electronic devices on the dynamic performance of these schemes will be presented.
Key words: BESS, power quality, SMES, STATCOM, , ,
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Cite this Reference:
F. Gharedaghi, M. Deysi, H. Jamali and A. Khalili, . Investigation of Energy Storage Devices Impact on Improvement of Power Quality Aspects. Research Journal of Applied Sciences, Engineering and Technology, (06): 571-580.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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