Expert Systems - Digital Signal Processing in Power System Protection and Control - page 299

Table 14.1 Aspects of problem solving as performed by human experts, expert systems and
conventional programs
14.4 Expert System Applications
Capabilities of ES are well recognized, they include: strategic goal setting, plan-
ning, design, decision-making, quality control and monitoring, diagnosis that may
be exploited in almost any conceivable branch of industry.
One has to underline that, unfortunately, there are only a few applications of ES
to power system protection reported (off-line tasks solved):
• Protection settings co-ordination [ 7 ].
• Alarm processing [ 10 ].
• Designing the protection system of a power transformer [ 13 ].
• Post-fault analysis [ 16 ].
• Fault diagnosis [ 18 ].
As yet there is no application reported of the ES technique employed as a
decision-making tool in an on-line operating protective relay, mainly due to
complexity of such systems that might not be able to respond suitably fast and in
real-time regime. Therefore, unlike in the other chapters on artificial intelligence
techniques, no example of ES application is provided in this chapter.