【摘要】 挖掘供热机组向上、向下的双向调峰能力，对推动我国能源结构升级、促进能源的清洁替代具有发展战略意义。建立了供热管网的蓄、释热数学模型和热能输运模型，分析了供热管网的热惯性特性，研究了质调节、量调节和综合调节等3种蓄、释热模式对机组双向调峰能力的影响。结果表明：质调节蓄、释热模式使机组向下、向上调峰能力分别增加了35.2MW、34.2MW,单向调峰时长为2.6h;量调节蓄、释热模式使机组向下、向上调峰能力分别增加了24.0MW、20.8MW,单向调峰时长分别为1.125h、1.38h;综合调节蓄、释热模式可获得更高的蓄(释)热功率，机组向下调峰能力增加了41.0MW～66.4MW,下调负荷时长为2.26h,机组向上调峰能力增加了34.3MW～54.3MW,上调负荷时长为2.57h。利用供热管网的蓄、释热特性，能够实现能量的时空转移，扩大了供热机组向上和向下的双向调峰能力。更多还原

【Abstract】 It’s strategically significant for promoting the upgrading of China’s energy structure and the clean energy substitution to tap into the upward and downward peak regulation capabilities of cogeneration units. This manuscript built the mathematical models of heat storage and release, as well as heat transport in heating pipeline networks. The thermal inertia characteristics of heating networks were investigated based on the simulation models. This manuscript also investigated the impacts of three different heat storage and release modes-quality adjustment, quantity adjustment, and comprehensive adjustment-on the bidirectional peak regulation capabilities of the cogeneration units. The results show that the quality adjustment mode increases the downward and upward peak regulation capabilities by 35.2MW and 34.2MW, respectively, with a time duration of 2.6h. The quantity adjustment mode increases the downward and upward peak regulation capabilities by 24.0MW and 20.8MW, respectively, with unidirectional time durations of 1.125h and 1.38h, respectively. The comprehensive adjustment mode achieves higher heat storage(release) power, with the downward peak regulation capability increasing by 41.0MW-66.4MW and time duration of 2.26h, and the upward peak regulation capability increasing by 34.3MW-54.3MW and time duration of 2.57h. As a result, the temporal and spatial shifts in energy is achieved by leveraging the heat storage and release characteristics of heating pipeline networks, thereby expanding the bidirectional peak regulation capabilities of cogeneration units.更多还原