中文摘要：

本文采用热经济学结构理论方法,以太阳能辅助600 MW燃煤发电系统为研究案例。构建了该系统的物理结构图、生产结构图,可以准确描述出系统各个设备之间的生产关系。使用所建立的燃料产品热经济学模型量化了各个设备的消耗、消耗的组成以及相互间消耗的交互关系。通过系统仿真,深入分析了太阳能辅助发电系统热力性能与原普通燃煤机组的差别。对太阳能辅助发电系统在变工况下系统性能及系统组成部分性能特性进行了详细研究。结果表明热经济学结构理论弥补了传统热力学分析方法（如未能考虑系统各个设备不可逆损失的不等价性等）不足,能够简单明确表示出每个组元对外部资源的消耗情况,并可以量化太阳能资源与燃煤资源对系统的影响。

英文摘要：

In this paper,the structural theory of thermoeconomics is applied to a hybrid system which is integrated concentrated solar heating system with coal-fired power plant.The physical structure and productive structure of the system have been built to describe the relationship between the components.The performance of components and the interactions are evaluated based on fuel-product concept of structural theory.The differences between the coupled system and the original power plant have been examined by system simulation.The performance of components at design and off-design working conditions of solar aided coal fired system are evaluated as well.The results prove that the structural theory is a useful tool to evaluate the whole energy system,and the solar aided coal-fired power plant can achieve efficient solar energy utilization.