楼宇型分布式能源系统设备容量和运行策略优化研究

设备容量优化和运行策略优化是分布式能源系统设计，运行的关键问题。为实现分布式能源系统的经济效益，能效水平和环境效益最大化，针对楼宇型分布式能源系统建立了相对普适化的物理模型和数学模型，以粒子群优化算法和线性规划相结合，采用两阶段优化方法计算系统的最优容量配置，并给出运行策略。以某写字楼的分布式能源系统为例，得到最优的系统设备容量和全年逐时运行策略，并采用遍历法验证计算结果的准确性。优化的分布式能源系统与传统供能系统相比，费用年值降低7.79%，年总能耗降低24.18%，污染物排放量减少了62.77 %。

Optimal design of operation strategy and capacity for building-type distributed energy system

Equipment capacity optimization and operational strategy optimization are key issues in the design and operation of distributed energy systems.In order to achieve the maximize of economic benefits, energy efficiency level and environmental benefits,a relatively universal physical model and mathematical model are established for the building-type distributed energy system,adopting a combination of particle swarm optimization algorithm and linear programming.By using a two-stage optimization method the optimal operating strategy and optimal capacity configuration of the system are obtained.Taking the distributed energy system of an office building as an example, the optimal system equipment capacity and year-to-day running strategy are obtained, and the traversal method is used to verify the accuracy of the calculation results.Compared with the conwentional separation production system, the optimized distributed energy system reduces the annual cost by 7.79%, the annual total energy consumption by 24.18%, and the pollutant emissions by 62.77%.