本論文以台電抽蓄電廠運轉策略為探討對象。當其它水力電廠機組因天然災害或水資源限制無法充分發電時，電力系統調度人員會以明湖及明潭抽蓄電廠發電機組做為系統主要頻率調整備轉容量與瞬間備轉容量來源。因此抽蓄電廠之運轉策略將對系統之發電成本及供電安全有直接影響。
目前台電電力系統調度人員已將負載-頻率靈敏係數作為指標，將運轉中最大發電機組發生故障跳機後系統一分鐘恢復頻率作為系統安全限制，來檢視頻率調整備轉容量的配置是否足夠。在其他水力機組供電能力不足下，調度人員在非離峰時段會併聯足夠的抽蓄機組發電作為頻率調整備轉容量。
本論文提出在非離峰時段減少抽蓄機組的發電，改採一抽蓄電廠抽水，一抽蓄電廠發電模式，將可兼顧系統合理備轉容量之安全限制並降低系統運轉成本、改善電力品質，同時減少抽蓄機組解聯、併聯的次數。

This thesis investigates the operating strategy of Taipower pumped storage plants under reasonable spinning reserve constraint. When non-pumped-storage hydroplants cannot operate under full-capacity condition due to natural disaster or limited water resource, electricity dispatchers will use Ming-Hu and Ming-Tan pumped-storage generating units as the main frequency regulating reserve (FRR) and instantaneous reserve. As a result, the strategy on how to operate pumped-storage hydroplants will have a direct effect on the operating cost and system safety.
At present, Taipower System electricity dispatchers use the load-frequency sensitivity factor (LFSF) as an index. The one-minute recovery frequency following the outage of largest on-line generator is used as a safety system constraint to check whether the FRR is sufficient or not. Normally when non-pumped-storage hydroplants do not generate enough power, electricity dispatchers often use multiple automatic generation control units as FRR during non-off-peak periods to generate power with enough spinning reserve.
This research proposes an alternative way to reduce the usage of pumped-storage units during non-off-peak periods. It is more efficient to schedule multiple pumped-storage hydroplants working spontaneously, some pump water and some others generate power. This proposed method will take into account not only system safety but also ways to reduce operation costs, to improve power quality and to decrease switchings for automatic generation control units.

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