计及冰蓄冷的冷热电联供能源系统非线性优化调度方法

Nonlinear optimal scheduling method for cooling heating and power system considering ice storage

冷热电联供能源系统的运行经济性取决于联供系统运行策略的合理程度。围绕含冰蓄冷装置的典型冷热电联供微型能源系统,建立主要能源设备的输入、输出非线性模型,以日运行成本最低为目标函数,输入微型能源网的冷热电负荷、能源市场价格以及设备类型与容量,通过求解非线性优化调度模型,可计算微型能源网内各供能设备的运行方式和出力。以某园区供冷季、供暖季、过渡季3个典型日工况的冷热点负荷为例进行模型验证,算例表明通过此方法计算的各供能设备的运行方式和出力,可显著降低系统的日运行费用,实现冷热电联供能源系统的经济优化运行。

The economy of cooling heating and power system depends on whether the running strategy of system is reasonable. Based on the typical cooling heating and power system with ice storage system, a nonlinear optimizing and scheduling model is established to minimize the daily running cost. Inputting power, cooling and heating load, energy market price, equipment type and capacity of the micro energy network, the running mode and output of each energy supply equipment in the energy network are calculated by solving the model. Taking three typical daily working conditions of cold supply season, heating season and transition season as an example to verify the model, the calculation example shows that the method in the paper can significantly reduce the daily running cost of the system and realize the economic optimal operation of the micro energy network of cooling heating and power system with ice storage system.