Abstract
Two control strategies are implemented for multiterminal voltage sourced converter (VSC)-based HVDC (M-VSC-HVDC). A test system consisting of five terminals was developed in PSCAD. In-Strategy 1, the Predictive controller is implemented in the inner control loop whereas strategy 2 using proportional-integral-derivative controller (PID). Small signal analytical models for two terminal VSC-HVDC are developed within MATLAB. Simulation is performed using PSCAD to verify and validate the conclusions from the analytical models. A detailed comparison study between the two strategies is carried out. An eigenvalues stability study for very weak AC system is also presented. Strategy II is seen to be adequate for advanced control design for multiterminal M-VSC-HVDC system for higher power applications. The potential of the supplementary DC voltage feedback to enhance the dynamic stability is considered. It is shown that in order to enhance system robustness it is important to use additional DC voltage feedback with strategy II on all stations operating with DC current/power regulation. The simulation results show that the supplementary DC voltage feedback contribute significantly toward improving the dynamic behavior of the M-VSC-HVDC system under a wide range of operating conditions
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011 |
| Publication status | Published - 11 Oct 2011 |
| Event | 2011 14th European Conference on Power Electronics and Applications, EPE 2011 - Birmingham, United Kingdom Duration: 30 Aug 2011 → 1 Sep 2011 |
Conference
| Conference | 2011 14th European Conference on Power Electronics and Applications, EPE 2011 |
|---|---|
| Country | United Kingdom |
| City | Birmingham |
| Period | 30/08/11 → 1/09/11 |
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Keywords
- Control strategy
- dynamic response
- eigenvalues
- M-VSC-HVDC
- modeling
- stability
- supplementary DC voltage feedback
- transmission system
- very weak AC system
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Small signal modelling and stability analysis of multiterminal VSC-HVDC. / Alsseid, Aleisawee M.; Jovcic, D.; Starkey, A.
Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011. 2011. 6020578.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Small signal modelling and stability analysis of multiterminal VSC-HVDC
AU - Alsseid, Aleisawee M.
AU - Jovcic, D.
AU - Starkey, A.
PY - 2011/10/11
Y1 - 2011/10/11
N2 - Two control strategies are implemented for multiterminal voltage sourced converter (VSC)-based HVDC (M-VSC-HVDC). A test system consisting of five terminals was developed in PSCAD. In-Strategy 1, the Predictive controller is implemented in the inner control loop whereas strategy 2 using proportional-integral-derivative controller (PID). Small signal analytical models for two terminal VSC-HVDC are developed within MATLAB. Simulation is performed using PSCAD to verify and validate the conclusions from the analytical models. A detailed comparison study between the two strategies is carried out. An eigenvalues stability study for very weak AC system is also presented. Strategy II is seen to be adequate for advanced control design for multiterminal M-VSC-HVDC system for higher power applications. The potential of the supplementary DC voltage feedback to enhance the dynamic stability is considered. It is shown that in order to enhance system robustness it is important to use additional DC voltage feedback with strategy II on all stations operating with DC current/power regulation. The simulation results show that the supplementary DC voltage feedback contribute significantly toward improving the dynamic behavior of the M-VSC-HVDC system under a wide range of operating conditions
AB - Two control strategies are implemented for multiterminal voltage sourced converter (VSC)-based HVDC (M-VSC-HVDC). A test system consisting of five terminals was developed in PSCAD. In-Strategy 1, the Predictive controller is implemented in the inner control loop whereas strategy 2 using proportional-integral-derivative controller (PID). Small signal analytical models for two terminal VSC-HVDC are developed within MATLAB. Simulation is performed using PSCAD to verify and validate the conclusions from the analytical models. A detailed comparison study between the two strategies is carried out. An eigenvalues stability study for very weak AC system is also presented. Strategy II is seen to be adequate for advanced control design for multiterminal M-VSC-HVDC system for higher power applications. The potential of the supplementary DC voltage feedback to enhance the dynamic stability is considered. It is shown that in order to enhance system robustness it is important to use additional DC voltage feedback with strategy II on all stations operating with DC current/power regulation. The simulation results show that the supplementary DC voltage feedback contribute significantly toward improving the dynamic behavior of the M-VSC-HVDC system under a wide range of operating conditions
KW - Control strategy
KW - dynamic response
KW - eigenvalues
KW - M-VSC-HVDC
KW - modeling
KW - stability
KW - supplementary DC voltage feedback
KW - transmission system
KW - very weak AC system
UR - http://www.scopus.com/inward/record.url?scp=80053487844&partnerID=8YFLogxK
M3 - Conference contribution
SN - 9781612841670
BT - Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011
ER -