NDLI: Unbalanced voltage control of virtual synchronous generator in isolated micro-grid

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Unbalanced voltage control of virtual synchronous generator in isolated micro-grid

Content Provider	Scilit
Author	Cao, Y. Z. Wang, H. N. Chen, B.
Copyright Year	2017
Description	Journal: Iop Conference Series: Materials Science and Engineering Virtual synchronous generator (VSG) control is recommended to stabilize the voltage and frequency in isolated micro-grid. However, common VSG control is challenged by widely used unbalance loads, and the linked unbalance voltage problem worsens the power quality of the micro-grid. In this paper, the mathematical model of VSG was presented. Based on the analysis of positive- and negative-sequence equivalent circuit of VSG, an approach was proposed to eliminate the negative-sequence voltage of VSG with unbalance loads. Delay cancellation method and PI controller were utilized to identify and suppress the negative-sequence voltages. Simulation results verify the feasibility of proposed control strategy.
Related Links	http://iopscience.iop.org/article/10.1088/1757-899X/211/1/012020/pdf
ISSN	17578981
e-ISSN	1757899X
DOI	10.1088/1757-899x/211/1/012020
Journal	Iop Conference Series: Materials Science and Engineering
Volume Number	211
Language	English
Publisher	IOP Publishing
Publisher Date	2017-06-27
Access Restriction	Open
Subject Keyword	Journal: Iop Conference Series: Materials Science and Engineering Energy and Fuel Technology Pi Controller Synchronous Generator Negative Sequence Power Quality Isolated Micro Virtual Synchronous Micro Grid Voltage Control
Content Type	Text
Resource Type	Article

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