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Applying array-based logic to substation control for switch interlocking

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1 Author(s)
Strunge, C. ; Dept. of Electr. Power Eng., Tech. Univ., Lyngby, Denmark

Array-based logic is a novel technology based on algebraic-geometrical formulations where logical truth-values are considered as physical measurements. The preliminary study on which this paper is based shows how array-based logic can be applied to an existing substation control system resulting in a mathematically consistent and complete description of a substation interlocking scheme for steady-state security assessment. This study also showed that building a complete system rule-base in array-based logic is resembling the design of electrical networks: knowledge descriptions for each component are joined in agreement with the system topology. The knowledge description for each component, a `primitive', is a logical description of the legality of each component state. The technology of array-based logic described in this paper is now incorporated in functioning expert system shells for personal computers. Because of the potentials of this technology a number of suggestions made by the preliminary study are being investigated in a research project

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Power Delivery, IEEE Transactions on  (Volume:14 ,  Issue: 3 )