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。
The economic objective function and security objective function is combined to improve the established optimization models of reactive power distribution network.
在已建立的配电网无功优化的模型基础上对其进行了改进，将经济性目标函数和安全性目标函数相结合。
Abstract: This paper introduce the structure, function, hardware and software design and implementation of a wireless gas meter reading system which is real-time, reliable, economic, low-power.
摘要：针对现在抄表系统复杂度高或成本高等问题，本文设计了一套燃气表无线抄表系统，从基本架构、主要功能、软硬件的实现加以说明，具有实时、可靠、经济、低功耗等优点。
Abstract: This paper introduce the structure, function, hardware and software design and implementation of a wireless gas meter reading system which is real-time, reliable, economic, low-power.
摘要：针对现在抄表系统复杂度高或成本高等问题，本文设计了一套燃气表无线抄表系统，从基本架构、主要功能、软硬件的实现加以说明，具有实时、可靠、经济、低功耗等优点。
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