Incremental fuzzy PI control of a HVDC plant

High Voltage Direct Current (HVDC) transmission systems traditionally use PI controllers with fixed gains. These controllers operate satisfactorily within a small operating range because of the non-linearity and uncertainty of the plant. However, when AC systems are weak, the HVDC systems are prone...

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Main Author: Qi, Jian
Format: Others
Published: 2005
Online Access:http://spectrum.library.concordia.ca/8845/1/MR14277.pdf
Qi, Jian <http://spectrum.library.concordia.ca/view/creators/Qi=3AJian=3A=3A.html> (2005) Incremental fuzzy PI control of a HVDC plant. Masters thesis, Concordia University.
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spelling ndltd-LACETR-oai-collectionscanada.gc.ca-QMG.88452013-10-22T03:46:13Z Incremental fuzzy PI control of a HVDC plant Qi, Jian High Voltage Direct Current (HVDC) transmission systems traditionally use PI controllers with fixed gains. These controllers operate satisfactorily within a small operating range because of the non-linearity and uncertainty of the plant. However, when AC systems are weak, the HVDC systems are prone to repetitive commutation failures under disturbances, which may lead to the instability and collapse of the DC link. This thesis is a contribution to the study of these problems. In order to make the HVDC systems have optimal control over a wider operating range, an Incremental Fuzzy Gain Scheduling Proportional and Integral Controller (IFGSPIC) is proposed for the current control of the rectifier. For this study using the EMTP RV simulation package, a typical HVDC system connected to a weak AC system is modeled with the detailed representation of the converter, converter transformer and AC/DC filters etc. The DC current error and its derivative are taken as two parameters necessary to adapt the proportional (P) and integral (I) gains of the current controller based on fuzzy reasoning. 2005 Thesis NonPeerReviewed application/pdf http://spectrum.library.concordia.ca/8845/1/MR14277.pdf Qi, Jian <http://spectrum.library.concordia.ca/view/creators/Qi=3AJian=3A=3A.html> (2005) Incremental fuzzy PI control of a HVDC plant. Masters thesis, Concordia University. http://spectrum.library.concordia.ca/8845/
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format Others
sources NDLTD
description High Voltage Direct Current (HVDC) transmission systems traditionally use PI controllers with fixed gains. These controllers operate satisfactorily within a small operating range because of the non-linearity and uncertainty of the plant. However, when AC systems are weak, the HVDC systems are prone to repetitive commutation failures under disturbances, which may lead to the instability and collapse of the DC link. This thesis is a contribution to the study of these problems. In order to make the HVDC systems have optimal control over a wider operating range, an Incremental Fuzzy Gain Scheduling Proportional and Integral Controller (IFGSPIC) is proposed for the current control of the rectifier. For this study using the EMTP RV simulation package, a typical HVDC system connected to a weak AC system is modeled with the detailed representation of the converter, converter transformer and AC/DC filters etc. The DC current error and its derivative are taken as two parameters necessary to adapt the proportional (P) and integral (I) gains of the current controller based on fuzzy reasoning.
author Qi, Jian
spellingShingle Qi, Jian
Incremental fuzzy PI control of a HVDC plant
author_facet Qi, Jian
author_sort Qi, Jian
title Incremental fuzzy PI control of a HVDC plant
title_short Incremental fuzzy PI control of a HVDC plant
title_full Incremental fuzzy PI control of a HVDC plant
title_fullStr Incremental fuzzy PI control of a HVDC plant
title_full_unstemmed Incremental fuzzy PI control of a HVDC plant
title_sort incremental fuzzy pi control of a hvdc plant
publishDate 2005
url http://spectrum.library.concordia.ca/8845/1/MR14277.pdf
Qi, Jian <http://spectrum.library.concordia.ca/view/creators/Qi=3AJian=3A=3A.html> (2005) Incremental fuzzy PI control of a HVDC plant. Masters thesis, Concordia University.
work_keys_str_mv AT qijian incrementalfuzzypicontrolofahvdcplant
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