An expert system for voltage and reactive power control of a power system

Journal Article · Tue Nov 01 04:00:00 EST 1988 · IEEE Trans. Power Syst.; (United States)

DOI:https://doi.org/10.1109/59.192952· OSTI ID:6568359

Cheng, S J; Malik, O P; Hope, G S ^[1]

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1. Dept. of Electrical Engineering, The Univ. of Calgary, Calgary, Alberta T2N 1N4 (CA)

A methodology, called the sensitivity tree, which can be easily used to form an expert system for real-time control is proposed in this paper. Based on this methodology, an expert system for control of voltage and reactive power of a power system is developed. The main objective of this expert system is to help the operator detect buses experiencing abnormal conditions, select the most effective control measures and calculate the control actions required to overcome the voltage violation. The control measures used to alleviate the voltage problem are capacitor compensation, transformer tap and generator terminal voltage changes. By keeping the bus voltage in the entire system within limits, system security is increased. The expert system is written in PROLOG language. Simulations studies with this expert system applied to a 30 bus power system show satisfactory results.

• OSTI ID: 6568359
• Journal Information: IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 3:4; ISSN ITPSE
• Country of Publication: United States
• Language: English

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