论文标题
地区供暖网络中的液压参数估计
Hydraulic Parameter Estimation in District Heating Networks
论文作者
论文摘要
在区域加热网络中使用液压模型可以提高抽水效率并降低对液压瓶颈的敏感性。这些模型通常是白框，因为它们是根据区域加热网络及其参数的全部知识获得的。这种类型的模型是耗时的，并且可能与系统的实际行为有所不同。在本文中，提出了一种方法来获得树状区域加热系统的灰盒液压模型：基于仅两个位置的压力测量值估算液压参数。虽然以前的工作仅估计与管道压力损失有关的参数，但该工作还包括灰色框模型结构中的客户阀，这是针对控制的应用程序的重要包含。最后，一个数值示例说明了小型地区加热网络上提出的方法，显示了其在嘈杂的测量基础上获得准确模型的能力。
Using hydraulic models in control design in district heating networks can increase pumping efficiency and reduce sensitivity to hydraulic bottlenecks. These models are usually white-box, as they are obtained based on full knowledge of the district heating network and its parameters. This type of model is time-consuming to obtain, and might differ from the actual behavior of the system. In this paper, a method is proposed to obtain a grey-box hydraulic model for tree-shaped district heating systems: hydraulic parameters are estimated based on pressure measurements in only two locations. While previous works only estimate parameters related to pressure losses in pipes, this work also includes customers valves in the grey-box model structure, an important inclusion for control-oriented applications. Finally, a numerical example illustrates the proposed method on a small district heating network, showing its ability to obtain an accurate model on the basis of noisy measurements.
