论文部分内容阅读
水电能源系统是一个典型的开放系统,与外界环境存在着频繁的物质和能量交换。根据热力学熵的基本概念及熵概念泛化的基本特性,提出了水电能源系统熵的定义,并进行了系统电站熵变分析;结合水电能源系统电站的特点,提出了径流调节过程中基于决策出流量的水头、水量潜在熵增计算表达式;建立了系统电站发电量优化规划即熵增最小目标方程,应用凸规划原理及凸函数性质论证了目标方程存在最优解;最后提出了水电能源系统优化规划模型,实例验证该模型符合实际规划需求。
Hydropower energy system is a typical open system, with the external environment there is frequent exchange of material and energy. According to the basic concept of thermodynamics entropy and the basic characteristics of generalization of entropy concept, the definition of entropy of hydropower energy system and the entropy change analysis of hydropower system are proposed. Combined with the characteristics of hydropower system power plant, The calculation formula of potential entropy increase of water head and water flow is established. The minimum entropy increase equation of generating capacity of power system is established. By using the convex programming principle and the convex function, the optimal solution of the objective equation is presented. Finally, the hydropower energy system Optimize the planning model, and verify that the model meets the actual planning needs.