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Test results of compensation for load fluctuation under a fuzzy control by a 1 kWh/1 MW SMES

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4 Author(s)
Sannomiya, T. ; Kyushu Electr. Power Co. Inc., Fukuoka, Japan ; Hayashi, H. ; Ishii, T. ; Ikeda, R.

A full system of 1 kWh/1 MW SMES (superconducting magnetic energy storage) has been completed. This SMES is the first step to the realization of practical SMES system for power line control. In the field tests the SMES, its function for compensating load fluctuation of 6 kV distribution line with fuzzy control applied, was confirmed. The fuzzy control of the SMES interprets whether power variation in the distribution line increases or decreases. It interprets concurrently whether the energy capacity stored in the SMES increases or decreases. In the tests, the calculated theoretical values almost coincident well with experimental values under the fuzzy control. The test results proved the effectiveness of the fuzzy control system of SMES. These results might be useful for the design of the next larger scale SMES

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Applied Superconductivity, IEEE Transactions on  (Volume:11 ,  Issue: 1 )