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DStatCom regulation by a fuzzy segmented PI controller
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DOI：10.1016/j.epsr.2009.11.003.png)
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Abstract
En 中文
This paper presents a segmented PI controller for the 84-pulses DStatCom connected to the electric power system (EPS) and subjected to several common disturbances in voltage and load levels The 84-pulses signal is obtained by combining one twelve-pulses voltage source converter (VSC) with an asymmetric single-phase seven-level converter. adding an injection transformer This structure allows a reduced VSC output's total harmonic distortion The synchronizing strategy ties the DStatCom to the EPS in an automatic way, preventing phase and frequency problems PI controllers exhibit good performance around nominal conditions but they do not tolerate severe disturbances Thus, a segmented PI strategy based on the error and error's variation is utilized and selected according to fuzzy rules Simulations demonstrate the appropriateness of the proposal (C) 2009 Elsevier B.V. All rights reserved.
Keywords:
FACTS
DStatCom
Voltage source converters
PI controller
Fuzzy controllers
Journal
IF:
4.2
Papers:
1.2W
Citations:
2.2W
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