A PROBABILISTIC ASSESSMENT OF TRANSIENT STABILITY
| dc.contributor.advisor | Billington, R. | |
| dc.creator | Kuruganty, Pratapa Rudra Sastry | |
| dc.date.accessioned | 2024-05-28T21:26:53Z | |
| dc.date.available | 2024-05-28T21:26:53Z | |
| dc.date.issued | 1979-08 | |
| dc.date.submitted | August 1979 | |
| dc.description.abstract | The application of probabilistic techniques in the quantitative evaluation of power system reliability is gaining in popularity as utilities and regulators are recognizing the inadequacy of qualitative methods when uncertainties associated with generation, transmission and distribution of electrical energy are to be considered in the assessment procedure. Probability methods are being used extensively in the area of static adequacy assessment, however, their application to transient stability evaluation has not been widely accepted. This thesis illustrates a procedure to include the probabilistic aspects associated with the type, location and clearance of faults in the transient stability evaluation procedure. A new transient stability index, which considers the probabilistic phenomena is developed. The procedure for obtaining this index and its response to the system parameters affecting stability are demonstrated for a single machine-infinite bus system. The protection system plays an important role in maintaining system stability. The probability distributions of fault clearing time used in calculating the stability indices must be obtained by reliability modelling of the protection system. This modelling procedure is illustrated for a simple distance impedance scheme. Extension of the basic technique to multimachine systems is illustrated for a hypothetical system. Two types of indices namely the line and system indices are developed. The response of the stability index to system parameters is investigated for the multimachine system. Two methods of system simplification, to obtain approximate stability indices useful in initial system planning studies are investigated for this system. The techniques proposed are applied to two practical models based on the Saskatchewan Power Corporation (SPC) system using actual system outage statistics. These data were then used to create an additional index, "Expected Frequency of Transient Instability" for the 33 bus model of the Saskatchewan Power Corporation system. | |
| dc.identifier.uri | https://hdl.handle.net/10388/15725 | |
| dc.title | A PROBABILISTIC ASSESSMENT OF TRANSIENT STABILITY | |
| dc.type.genre | Thesis | |
| thesis.degree.department | Electrical Engineering | |
| thesis.degree.grantor | University of Saskatchewan | en_US |
| thesis.degree.level | Doctoral | |
| thesis.degree.name | Doctor of Philosophy (Ph.D.) |