停電損失を考慮した電力貯蔵装置の最適配置手法

概要

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In is expected that electrical energy storage facilities will be installed for improving load factor. Although there are no constraints for places to install, ordinarily, a site is considered as a possibility if it is one where transmission loss is minimized or where voltage or frequency can he easily controlled by setting up storage facilities. If storage facilities are installed at load buses, electric power would be maintained by supply from the storage facilities to the loads, even when outage should occur at the power source side of the buses in question. In this paper, the authors propose a method to determine the arrangement of storage facilities, for the objective of minimizing the cost of interruption of electrical service, assuming that the facilities are installed at load buses. The problem is formulated and solved by using the dynamic programming method. From the examples, it is confirmed that we can reduce the cost of interruption by the ratio of (maximum output)/(interrupted load), if the corresponding maximum capacity is 2〜5 times larger than the mean outage duration time, and also it is confirmed that it is better to install larger storage facilities for larger capacity loads and for loads with larger mean outage duration time.