Based on the energy balance of power system, the mathematical model of energy storage, economic model of power system with energy storage, and the cost function of power system are introduced.
从电力系统的能量平衡入手，介绍了能量存储的数学模型、具有能量存储系统的电力系统经济模型以及电力系统的费用函数。
The function of currency is just like that of "a double-blade sword". If this "sword"is used properly, it can be the first and constant forcing power to economic growth.
货币的作用是一把双刃剑，运用得体可以真正发挥经济的“第一推动力”和“持续推动力”的作用；
Taking the minimum cost per unit power generation as the objective function, a thermo-economic optimization model for gas and steam combined cycle power generation system is established.
以单位发电量最低成本为目标函数，建立了燃气-蒸汽联合循环发电系统的热经济学优化模型。
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