Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems

H R Najafi, F Robinson

Research output: Contribution to conferencePaper

1 Citation (Scopus)
74 Downloads (Pure)

Abstract

This paper deals with design and stability of a newnonlinear fuzzy state feedback controller for HVDCsystems. A novel simplified nonlinear dynamic model isdeveloped for HVDC system that can be used to designthe controller. The proposed nonlinear dynamic modeldecomposes into several linear systems around its importantequilibrium points. These local linear modelsdescribe the plant dynamical behavior at its differentoperating points. The proposed controller is used in thecontrol loops of the HVDC system. The simulation iscarried out based on the Cigré benchmark model. Simulationresults show improvement of overall AC/DC/ACsystem performance when severe faults occur, comparedto the conventional controller. Also, the stable behaviorof a very weak AC/DC system (SCR<2) with proposedcontroller is very significant when a sudden change incurrent order and/or a switched reduction in ESCR isapplied. The same situation with conventional controlbrings the system into unstable region.
Original languageEnglish
Pages1-6.
Number of pages6
DOIs
Publication statusPublished - 2006
EventIndustrial Electronics and Applications, 2006 1ST IEEE Conference on -
Duration: 1 Jan 2006 → …

Conference

ConferenceIndustrial Electronics and Applications, 2006 1ST IEEE Conference on
Period1/01/06 → …

Fingerprint

State feedback
Controllers
Thyristors
Linear systems
Dynamic models

Cite this

Najafi, H. R., & Robinson, F. (2006). Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems. 1-6. . Paper presented at Industrial Electronics and Applications, 2006 1ST IEEE Conference on, . https://doi.org/10.1109/ICIEA.2006.257209

Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems. / Najafi, H R; Robinson, F.

2006. 1-6. Paper presented at Industrial Electronics and Applications, 2006 1ST IEEE Conference on, .

Research output: Contribution to conferencePaper

Najafi, HR & Robinson, F 2006, 'Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems', Paper presented at Industrial Electronics and Applications, 2006 1ST IEEE Conference on, 1/01/06 pp. 1-6. . https://doi.org/10.1109/ICIEA.2006.257209
Najafi HR, Robinson F. Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems. 2006. Paper presented at Industrial Electronics and Applications, 2006 1ST IEEE Conference on, . https://doi.org/10.1109/ICIEA.2006.257209
Najafi, H R ; Robinson, F. / Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems. Paper presented at Industrial Electronics and Applications, 2006 1ST IEEE Conference on, .6 p.
@conference{0c2eef863878467b8d7d2b5b8c6aae02,
title = "Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems",
abstract = "This paper deals with design and stability of a newnonlinear fuzzy state feedback controller for HVDCsystems. A novel simplified nonlinear dynamic model isdeveloped for HVDC system that can be used to designthe controller. The proposed nonlinear dynamic modeldecomposes into several linear systems around its importantequilibrium points. These local linear modelsdescribe the plant dynamical behavior at its differentoperating points. The proposed controller is used in thecontrol loops of the HVDC system. The simulation iscarried out based on the Cigr{\'e} benchmark model. Simulationresults show improvement of overall AC/DC/ACsystem performance when severe faults occur, comparedto the conventional controller. Also, the stable behaviorof a very weak AC/DC system (SCR<2) with proposedcontroller is very significant when a sudden change incurrent order and/or a switched reduction in ESCR isapplied. The same situation with conventional controlbrings the system into unstable region.",
author = "Najafi, {H R} and F Robinson",
year = "2006",
doi = "10.1109/ICIEA.2006.257209",
language = "English",
pages = "1--6.",
note = "Industrial Electronics and Applications, 2006 1ST IEEE Conference on ; Conference date: 01-01-2006",

}

TY - CONF

T1 - Design of a New Nonlinear Fuzzy State Feedback Controller for HVDC Systems

AU - Najafi, H R

AU - Robinson, F

PY - 2006

Y1 - 2006

N2 - This paper deals with design and stability of a newnonlinear fuzzy state feedback controller for HVDCsystems. A novel simplified nonlinear dynamic model isdeveloped for HVDC system that can be used to designthe controller. The proposed nonlinear dynamic modeldecomposes into several linear systems around its importantequilibrium points. These local linear modelsdescribe the plant dynamical behavior at its differentoperating points. The proposed controller is used in thecontrol loops of the HVDC system. The simulation iscarried out based on the Cigré benchmark model. Simulationresults show improvement of overall AC/DC/ACsystem performance when severe faults occur, comparedto the conventional controller. Also, the stable behaviorof a very weak AC/DC system (SCR<2) with proposedcontroller is very significant when a sudden change incurrent order and/or a switched reduction in ESCR isapplied. The same situation with conventional controlbrings the system into unstable region.

AB - This paper deals with design and stability of a newnonlinear fuzzy state feedback controller for HVDCsystems. A novel simplified nonlinear dynamic model isdeveloped for HVDC system that can be used to designthe controller. The proposed nonlinear dynamic modeldecomposes into several linear systems around its importantequilibrium points. These local linear modelsdescribe the plant dynamical behavior at its differentoperating points. The proposed controller is used in thecontrol loops of the HVDC system. The simulation iscarried out based on the Cigré benchmark model. Simulationresults show improvement of overall AC/DC/ACsystem performance when severe faults occur, comparedto the conventional controller. Also, the stable behaviorof a very weak AC/DC system (SCR<2) with proposedcontroller is very significant when a sudden change incurrent order and/or a switched reduction in ESCR isapplied. The same situation with conventional controlbrings the system into unstable region.

UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=4025826

U2 - 10.1109/ICIEA.2006.257209

DO - 10.1109/ICIEA.2006.257209

M3 - Paper

SP - 1-6.

ER -