最適化手法を用いたエネルギー供給ネットワークの運用マネジメント(燃料電池コージェネレーションとヒートボンプ給湯機の併用ネットワークへの適用）

摘要

省エネルギ一を積極的に進めるために，コ一ジエネレ一シヨン（CGU)やヒートポンプ給湯機（HPU)などの家庭 用電熱源機器（PHD)の開発·普及が進んでいる.しかし， CGUは余剰発電出力を電力系統に逆潮流できる条件が限ら れており，HPUは主に深夜電力を用いて温水を生成するた めに貯湯槽からの放熱損失が無視できない.このような運 転制約を緩和するためには，複数台のPHDで生成した電力 と温水を相互に融通するエネルギ一供給ネットワーク（ESN) を構築することが有効である1).%An operational management system of energy supply networks employing power and heat interchanges is extended to applications combining residential cogeneration and heat pump water heating units. The developedrnoperational management system consists of the energy demand prediction by support vector regression, optimalrnoperational planning based on mixed-integer linear programming, and rule-based operational control. To involve arnheat pump water heating unit to energy supply networks, the operational constraints including performancerncharacteristics in the optimal operational planning, and the operation rule under actual energy demands are newly considered. Annual operating simulation under the measured energy demands of a housing complex consisting ofrnfour dwellings reveals that the energy supply network using the two fuel cell-based cogeneration units and one heat pump water heating unit has a higher energy-saving effect than that using the four fuel cell-based cogeneration units.