基于动态能耗模型的微电网经济运行优化

Economic Operation Optimization for the Micro Grid Based on the Dynamic Energy Consumption Model

微电网系统具有较高的运营成本,为实现其经济运行,需要对系统的能耗量和运行成本给出准确的描述。基于微电网系统内冷、热、电等多种负荷的能耗特性及各能耗设备的运行工况特性,通过对数据的分析拟合得到系统内各能耗设备的动态能耗模型。考虑一次能源对冷、热、电3种负荷的转换利用方式及各能源之间的互补关系,构建了微电网系统的经济运行模型。利用量子行为粒子群优化算法对其进行优化求解,得到系统的最佳能源结构及综合运行成本。采用不同的算例对提出模型的有效性和可行性进行了验证,为微电网的能耗及经济性分析提供了一种新的思路和方法。

Compared with the traditional power system,the micro grid system exhibits a higher operation cost.In order to achieve the purpose of economic operation,the energy consumption and operation cost of the system need to be described accurately.Based on the energy consumption characteristics of the system and operation characteristics of the energy consumption equipment,dynamic energy consumption models of the system equipment were constructed by analyzing and fitting the data.Considering the conversion utilization modes of the primary energy and transformation relationship between the various energies,a economical operation model of the micro grid system was constructed.Though optimizing by the use of the quantum-behaved particle swarm optimization,the optimal energy structure and comprehensive operation cost of the system can be obtained.The feasibility and practicability of the proposed model were verified by the examples,and it provided a new idea for the energy consumption and economic analysis of the micro grid system.