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The comparison of commutators for one-phase inductive type fault current limiters control is presented. The brief comparative analyze including mechanicals, semiconductors and hybrid breakers has been made one type solid-state switch based on the semi-controllable thyristors and capacitive control circuit with power transistors has been chosen. The simulation results are proposed and the functionality is proved.

The precise planning of production and demand schedules is essential for the stability of the energy system. For this purpose, various economic incentives have been developed and implemented that encourage accurate adherence to the pre-registered schedules. In order to respond to the strictly following of the schedules a proactive compensation of electric power imbalance in day-ahead market is suggested. An original methodology for parameter estimation of the Imbalance Compensation System is proposed and experimental results are reported.

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