Automatic Learning Approaches for On-Line Transient Stability Preventive Control of the Hydro-Quebec System

1995 ◽  
Vol 28 (26) ◽  
pp. 391-396
Author(s):  
L. Wehenkel ◽  
I. Houben ◽  
M. Pavella
1995 ◽  
Vol 28 (26) ◽  
pp. 385-390 ◽  
Author(s):  
L. Wehenkel ◽  
I. Houben ◽  
M. Pavella ◽  
L. Riverin ◽  
G. Versailles

2010 ◽  
Vol 121-122 ◽  
pp. 887-892
Author(s):  
Lan Lan Yu ◽  
Bo Xue Tan ◽  
Tian Xing Meng

The transient stability preventive estimation and control is one of the most important tasks of the power system. The traditional time domain simulation method cannot meet the standard of on-line estimation because of its heavy computation burden. In this paper, we realize the on-line estimation of transient stability limits on critical lines of a power system using the favorable approximation ability of RBF network. We choose right samples by off-line count to train the RBF network in order to make the error satisfy demand. Preventive control direction and amount are determined based on first-order sensitivities of transient stability limits to generator outputs. The sensitivities are derived from partial derivatives of RBF network outputs to inputs. In the end, we take a practical power system for an example to demonstrate the efficiency of RBF network in estimation of the transient stability limit on critical lines and ability to provide preventive control strategy.


Author(s):  
Robekhah Harun ◽  
Zetty Harisha Harun ◽  
Laura Christ Dass

The increase in student enrolment and the need  to cater to students of diverse backgrounds have led to the adoption of blended learning in many higher learning institutions. Blended learning, which allows both face to face interaction and on-line delivery, has been adopted into many curricula. One such institution is University Technology MARA which is slowly introducing features of blended learning in its course syllabus beginning with practice to online assessments. However, to ensure successful implementation of blended learning as part of the curricula, there are several aspects for consideration such as learner and teacher readiness for blended learning. This paper examines issues regarding the use of blended learning as a delivery method at UiTM Kedah . The discussion in this paper focuses on learner’ readiness and perceptions of the blended learning environment. The data collected for this study are responses from learners to a questionnaire survey. The research findings form the basis for recommendations for the development of learning and teaching practices using blended learning approaches to enhance learners' learning experiences.  


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