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。
Using the knowledge of linearity algebra, the dynamic mathematical model for metro traction power system is founded as per the actual requirement of engineering.
利用线性代数等知识，根据实际工程需要，建立了地铁牵引供电系统的动态数学模型。
POS can supply more precise mathematical model to analyze the off-line power flow, stability and faults of the power system.
POS提供了更为精确的数学模型来离线分析电力系统的潮流、稳定性和故障。
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