In aim to improve system efficiency and flexibility at deep peak-load operation, a novel supply-side load regulation strategy was proposed for gas turbine-based CCHP (combined cooling, heating and power) systems, where the load was regulated through compressor bypass air extraction (CBAE) for energy storage in addition to inlet guide vane (IGV) regulation strategy. The part-load performance of gas turbine with CBAE was studied and compared with the performance under IGV regulation strategy; as well, the supply-demand coupling performance of the proposed CCHP system was investigated in three different scenarios of demand-side load distributions. Taking maximum overall energy efficiency as the optimization target, the design capacity of the proposed system was optimized and analyzed. The analysis indicates that, gas turbine part-load power efficiency under CBAE regulation is inferior to that under IGV regulation, whereas the former ensures gas turbine a higher capacity of power and heating than the latter. CBAE regulation strategy greatly improves heat-power ratio and enhances load adaptability. The case study shows that at a higher heat-power ratio, the overall energy efficiency of the proposed system is 1.75% greater, while the optimal capacity of gas turbine is 8.64% lower than that of the reference one.

为了提高深峰值负载运行时的系统效率和灵活性，针对基于燃气轮机的CCHP（冷却，加热和动力组合）系统提出了一种新的供应侧负载调节策略，该系统通过压缩机旁路空气调节负载除了入口导流叶片（IGV）调节策略外，还用于能量存储的抽取（CBAE）。研究了带有CBAE的燃气轮机的部分负荷性能，并将其与IGV调节策略下的性能进行了比较。同时，在三种不同的需求侧负荷分配方案中，研究了所提出的CCHP系统的供需耦合性能。以最大的整体能效为优化目标，对所提出系统的设计能力进行了优化和分析。分析表明，CBAE法规下的燃气轮机部分负荷功率效率低于IGV法规下的效率，而前者确保燃气轮机比后者具有更高的功率和供暖能力。CBAE调节策略大大提高了热功率比并增强了负载适应性。案例研究表明，在较高的热电比下，拟议系统的整体能效提高了1.75％，而燃气轮机的最佳容量比参考系统低了8.64％。