论文标题
使用动态编程确定电能储藏的成本效益控制
Determining Cost-Efficient Controls of Electrical Energy Storages Using Dynamic Programming
论文作者
论文摘要
对于能源密集型行业的中小型公司来说，电动电力价格是一个挑战，也是中小型公司的机会。通过使用电能存储和/或生产过程的适应，公司可以从延时的能源价格中显着获利并降低其能源成本。 我们考虑一个时间差异的最佳控制问题，以在特定时间步骤达到所需的最终储能状态。因此，能源输入是离散的，因为在EPEX现货市场上只能购买100 kWh的倍数。我们使用可用的价格估计来最大程度地减少基于圆形的动态编程方法的总能源成本。借助我们的模型，可以考虑存储的非线性能量损失函数，并且与整数（线性）编程公式相比，我们获得了显着的加速。
Volatile electrical energy prices are a challenge and an opportunity for small and medium-size companies in energy-intensive industries. By using electrical energy storage and/or an adaptation of production processes, companies can significantly profit from time-depending energy prices and reduce their energy costs. We consider a time-discrete optimal control problem to reach a desired final state of the energy storage at a certain time step. Thereby, the energy input is discrete since only multiples of 100 kWh can be purchased at the EPEX SPOT market. We use available price estimations to minimize the total energy cost by a rounding based dynamic programming approach. With our model non-linear energy loss functions of the storage can be considered and we obtain a significant speed-up compared to the integer (linear) programming formulation.
