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| Titel: |
PERFORMANCE EVALUATION OF TWO OPTIMAL LOAD SHEDDING POLICIES IN ELECTRIC POWER SYSTEMS |
| Auteur: |
Mostafa, M. A. El-Hawary, M. E. Mansour, M. M. El-Naggar, K. M. El-Arabaty, A. M. |
| Verschenen in: |
Electric power components & systems |
| Paginering: | Jaargang 25 (1997) nr. 2 pagina's 199-213 |
| Jaar: |
1997-02-01 |
| Inhoud: |
Load shedding is a key option in power system restoration. This paper offers an performance evaluation study of an optimal steady state load shedding policy that uses the sum of the squares of the difference between the connected active and the reactive load and the supplied active and reactive power to determine the optimal values of the supplied load. The loads are treated as dependent variables modelled as functions of bus voltages only. The equality constraints associated with the power system load curtailment problem are the power flow equations in polar form utilizing the nodal admittance matrix approach. The inequality constraints include limits on line flows, voltage magnitudes and angles and active and reactive power generations. An investigation of the performance of the proposed algorithm over a range of generation deficits as well as overload conditions is presented. Testing is done using IEEE 14 and 30 bus power systems and optimal results arc compared with results obtained using an earlier approach. The tests verify that the proposed approach yields a better optimal state of the power system when compared with the earlier approach. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 8 gevonden artikelen
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