The combination of an organic Rankine cycle (ORC) and solar collector (ST) with combined cooling heating and power (CCHP) system has the potential to improve its thermodynamic performances. Therefore, in this paper, fully considering thermal cascade utilization, a novel CCHP system combining ORC and ST is proposed, which uses solar energy and exhaust heat as ORC driving heat sources. Compared with traditional CCHP and CCHP-ST systems, the advantages of the CCHP-ORC-ST system are demonstrated. A collaborative optimization method considering both system configuration optimization and operation strategy is proposed, which realizes the improvement of system energy efficiency and economy. Based on the collaborative optimization method, the CCHP system with different integrated configurations is applied to commercial and office buildings. Through parameter analysis, the effects of parameters (such as the rated capacity of internal combustion engine and ORC evaporation temperature, etc.) are discussed. The findings portrays that the cost per unit supply area of the CCHP-ORC-ST system in typical years of office and commercial buildings is about 19.8 $/m² and 25.9 $/m². Compared with the CCHP system, the cost-saving rates of the CCHP-ORC-ST system in commercial and office buildings increase by 15.0% and 27.0%, respectively. The CCHP-ORC-ST system can flexibly utilize ORC to generate more electricity, improving energy efficiency and reducing wasted heat. Consequently, the proposed CCHP-ORC-ST system based on the collaborative optimization method can determine the optimal system configuration and operation design for energy savings and consumption reduction.

有机朗肯循环（ORC）和太阳能收集器（ST）与冷却供热系统（CCHP）结合使用具有改善其热力学性能的潜力。因此，本文在充分考虑热级联利用的基础上，提出了一种结合了ORC和ST的新型CCHP系统，该系统以太阳能和废热为ORC驱动热源。与传统的CCHP和CCHP-ST系统相比，展示了CCHP-ORC-ST系统的优点。提出了一种同时考虑系统配置优化和运行策略的协同优化方法，实现了系统能效和经济性的提高。基于协同优化方法，将具有不同集成配置的CCHP系统应用于商业和办公大楼。通过参数分析，讨论了参数的影响（如内燃机的额定容量和ORC蒸发温度等）。研究结果表明，在办公和商业建筑的典型年份中，CCHP-ORC-ST系统每单位供应区域的成本约为19.8美元/米²和25.9 $ / m ²。与CCHP系统相比，CCHP-ORC-ST系统在商业和办公楼中的成本节省率分别提高了15.0％和27.0％。CCHP-ORC-ST系统可以灵活地利用ORC产生更多的电能，从而提高能源效率并减少浪费的热量。因此，所提出的基于协同优化方法的CCHP-ORC-ST系统可以确定用于节能和降低能耗的最佳系统配置和运行设计。