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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Agada Ihuoma Nkechi, Abdul Motin Howlader and Atsushi Yona
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DOI:10.17265/1934-8975/2018.07.001
Affiliation(s)
Department of Electrical and Electronics Engineering, University of the Ryukyus, Okinawa 903-0213, Japan
ABSTRACT
Renewable energy is becoming more popular due to
its benefits for both economic and environmental reasons. Therefore, having a fault
free system will enhance efficiency and proper delivery of power. This paper presents the design, modelling and
simulation of a Synchronverter, analyzing
its fault and response of the system during integration. A synchronous frequency regulator for grid
connection is proposed to improve quick recovery, power quality enhancement and
good system performance after a fault occurrence. The swing equation provides
the inertia and the damping for stability, swift system integration of
photovoltaic energy to the grid and an overall effective performance. The effectiveness of the proposed model was
simulated in MATLAB/Simulink to analyze the system’s response during and after a fault occurrence and
photovoltaic integration comparing load change at different times. Simulation
results and analysis are presented to validate proposed controller.
KEYWORDS
Frequency regulator, inertia, swing equation, stability criterion, Synchronverter, VSG.
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