Abstract
Steam valve control is usually discarded in power system stability due to belief in its slow response. The present manuscript makes use of it as a backup control in the case of failure of the main fast excitation control. The model describing system dynamics as a function of the two controllers, with wide range loading conditions, is derived in a norm-bounded format. Linear matrix inequalities are derived as a sufficient condition to obtain reliable controllers that provide good oscillation damping when both controllers are sound or even in the case of failure of either one. The design scheme is robust in the sense that it keeps reliable stability against wide load changes as well. A single machine infinite bus system is presented to illustrate the proposed design procedure and exhibit its performance. Results of excitation and governor controller testing show that the desired performance could be fulfilled from light load to heavy load conditions. System performance shows a remarkable improvement of dynamic stability by obtaining a well-damped oscillation time response even in the case of failure of either controller. Extension of the proposed controller to multiarea load-frequency control with time delay is also presented.
| Original language | English |
|---|---|
| Pages (from-to) | 2853-2864 |
| Number of pages | 12 |
| Journal | Turkish Journal of Electrical Engineering and Computer Sciences |
| Volume | 24 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2016 |
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Keywords
- Excitation control
- Linear matrix inequalities
- Load-frequency control
- Power system stability
- Reliable control
- Robust control
- Steam valve control
- Time-delay systems
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Computer Science(all)
Cite this
Wide-range reliable stabilization of time-delayed power systems. / Soliman, Hisham M.; Benzaouia, Abdellah; Yousef, Hassan.
In: Turkish Journal of Electrical Engineering and Computer Sciences, Vol. 24, No. 4, 2016, p. 2853-2864.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Wide-range reliable stabilization of time-delayed power systems
AU - Soliman, Hisham M.
AU - Benzaouia, Abdellah
AU - Yousef, Hassan
PY - 2016
Y1 - 2016
N2 - Steam valve control is usually discarded in power system stability due to belief in its slow response. The present manuscript makes use of it as a backup control in the case of failure of the main fast excitation control. The model describing system dynamics as a function of the two controllers, with wide range loading conditions, is derived in a norm-bounded format. Linear matrix inequalities are derived as a sufficient condition to obtain reliable controllers that provide good oscillation damping when both controllers are sound or even in the case of failure of either one. The design scheme is robust in the sense that it keeps reliable stability against wide load changes as well. A single machine infinite bus system is presented to illustrate the proposed design procedure and exhibit its performance. Results of excitation and governor controller testing show that the desired performance could be fulfilled from light load to heavy load conditions. System performance shows a remarkable improvement of dynamic stability by obtaining a well-damped oscillation time response even in the case of failure of either controller. Extension of the proposed controller to multiarea load-frequency control with time delay is also presented.
AB - Steam valve control is usually discarded in power system stability due to belief in its slow response. The present manuscript makes use of it as a backup control in the case of failure of the main fast excitation control. The model describing system dynamics as a function of the two controllers, with wide range loading conditions, is derived in a norm-bounded format. Linear matrix inequalities are derived as a sufficient condition to obtain reliable controllers that provide good oscillation damping when both controllers are sound or even in the case of failure of either one. The design scheme is robust in the sense that it keeps reliable stability against wide load changes as well. A single machine infinite bus system is presented to illustrate the proposed design procedure and exhibit its performance. Results of excitation and governor controller testing show that the desired performance could be fulfilled from light load to heavy load conditions. System performance shows a remarkable improvement of dynamic stability by obtaining a well-damped oscillation time response even in the case of failure of either controller. Extension of the proposed controller to multiarea load-frequency control with time delay is also presented.
KW - Excitation control
KW - Linear matrix inequalities
KW - Load-frequency control
KW - Power system stability
KW - Reliable control
KW - Robust control
KW - Steam valve control
KW - Time-delay systems
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U2 - 10.3906/elk-1403-259
DO - 10.3906/elk-1403-259
M3 - Article
VL - 24
SP - 2853
EP - 2864
JO - Turkish Journal of Electrical Engineering and Computer Sciences
JF - Turkish Journal of Electrical Engineering and Computer Sciences
SN - 1300-0632
IS - 4
ER -