VSC transmission model for analytical studies

D. Jovcic, L. Lamont, L. Xu

Research output: Contribution to conferencePaper

70 Citations (Scopus)

Abstract

This paper presents a model of Voltage Source Converter (VSC) based transmission that can be used for wide range of stability studies and controller design with MATLAB software. The model is intended for analytical studies in the frequency domain above 5Hz. The system model has modular structure and includes three separate units in state-space form: AC rectifier model, AC inverter and DC system model. The converters, controllers and Phase Locked Loop (PLL) units are included in the DC model and the model is linked with other units using input-output matrices in the state-space models. The converter non-linear model is linearised assuming small deviations around the steady-state. The model is tested against the PSCAD/EMTDC non-linear model and the results show satisfactory accuracy. The tests also confirm that the analytical model well represents multivariable system properties. An example of the model use is given showing the eigenavlue study of the influence of PLL gains on the system stability. It is concluded that increased PLL gains deteriorate system stability.
LanguageEnglish
Pages1737-1742
Number of pages6
DOIs
Publication statusPublished - Jul 2003
Event IEEE-Power-Engineering-Society General Meeting 2003 - Toronto, Canada
Duration: 13 Jul 200317 Jul 2003

Conference

Conference IEEE-Power-Engineering-Society General Meeting 2003
CountryCanada
CityToronto
Period13/07/0317/07/03

Fingerprint

Electric potential
Phase locked loops
System stability
Controllers
Multivariable systems
MATLAB
Analytical models

Keywords

  • VSC transmission
  • model
  • analytical studies
  • analytical models
  • voltage control
  • stability
  • software design
  • power conversion
  • phase locked loops
  • mathematical model
  • MATLAB
  • frequency domain analysis
  • converters

Cite this

Jovcic, D., Lamont, L., & Xu, L. (2003). VSC transmission model for analytical studies. 1737-1742. Paper presented at IEEE-Power-Engineering-Society General Meeting 2003, Toronto, Canada. https://doi.org/10.1109/PES.2003.1267418
Jovcic, D. ; Lamont, L. ; Xu, L. / VSC transmission model for analytical studies. Paper presented at IEEE-Power-Engineering-Society General Meeting 2003, Toronto, Canada.6 p.
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abstract = "This paper presents a model of Voltage Source Converter (VSC) based transmission that can be used for wide range of stability studies and controller design with MATLAB software. The model is intended for analytical studies in the frequency domain above 5Hz. The system model has modular structure and includes three separate units in state-space form: AC rectifier model, AC inverter and DC system model. The converters, controllers and Phase Locked Loop (PLL) units are included in the DC model and the model is linked with other units using input-output matrices in the state-space models. The converter non-linear model is linearised assuming small deviations around the steady-state. The model is tested against the PSCAD/EMTDC non-linear model and the results show satisfactory accuracy. The tests also confirm that the analytical model well represents multivariable system properties. An example of the model use is given showing the eigenavlue study of the influence of PLL gains on the system stability. It is concluded that increased PLL gains deteriorate system stability.",
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Jovcic, D, Lamont, L & Xu, L 2003, 'VSC transmission model for analytical studies' Paper presented at IEEE-Power-Engineering-Society General Meeting 2003, Toronto, Canada, 13/07/03 - 17/07/03, pp. 1737-1742. https://doi.org/10.1109/PES.2003.1267418

VSC transmission model for analytical studies. / Jovcic, D.; Lamont, L.; Xu, L.

2003. 1737-1742 Paper presented at IEEE-Power-Engineering-Society General Meeting 2003, Toronto, Canada.

Research output: Contribution to conferencePaper

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N2 - This paper presents a model of Voltage Source Converter (VSC) based transmission that can be used for wide range of stability studies and controller design with MATLAB software. The model is intended for analytical studies in the frequency domain above 5Hz. The system model has modular structure and includes three separate units in state-space form: AC rectifier model, AC inverter and DC system model. The converters, controllers and Phase Locked Loop (PLL) units are included in the DC model and the model is linked with other units using input-output matrices in the state-space models. The converter non-linear model is linearised assuming small deviations around the steady-state. The model is tested against the PSCAD/EMTDC non-linear model and the results show satisfactory accuracy. The tests also confirm that the analytical model well represents multivariable system properties. An example of the model use is given showing the eigenavlue study of the influence of PLL gains on the system stability. It is concluded that increased PLL gains deteriorate system stability.

AB - This paper presents a model of Voltage Source Converter (VSC) based transmission that can be used for wide range of stability studies and controller design with MATLAB software. The model is intended for analytical studies in the frequency domain above 5Hz. The system model has modular structure and includes three separate units in state-space form: AC rectifier model, AC inverter and DC system model. The converters, controllers and Phase Locked Loop (PLL) units are included in the DC model and the model is linked with other units using input-output matrices in the state-space models. The converter non-linear model is linearised assuming small deviations around the steady-state. The model is tested against the PSCAD/EMTDC non-linear model and the results show satisfactory accuracy. The tests also confirm that the analytical model well represents multivariable system properties. An example of the model use is given showing the eigenavlue study of the influence of PLL gains on the system stability. It is concluded that increased PLL gains deteriorate system stability.

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KW - power conversion

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KW - frequency domain analysis

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Jovcic D, Lamont L, Xu L. VSC transmission model for analytical studies. 2003. Paper presented at IEEE-Power-Engineering-Society General Meeting 2003, Toronto, Canada. https://doi.org/10.1109/PES.2003.1267418