在“双碳”目标驱动下,构建低碳、经济和灵活的能源利用体系至关重要。为此,提出一种考虑源荷双侧需求响应和氢能多元利用的综合能源系统(integrated energy system,IES)低碳优化调度模型。首先,在源侧热电联产(combined heat and power...在“双碳”目标驱动下,构建低碳、经济和灵活的能源利用体系至关重要。为此,提出一种考虑源荷双侧需求响应和氢能多元利用的综合能源系统(integrated energy system,IES)低碳优化调度模型。首先,在源侧热电联产(combined heat and power,CHP)机组中引入电锅炉(electric boiler,EB)和卡琳娜(Kalina)循环模型,解耦CHP“以热定电”和“以电定热”模式,构建CHP灵活输出模型;其次,在荷侧引入电、热需求响应模型,并与源侧CHP灵活输出模型协调优化,构建源荷双侧需求响应模型;最后,在模型中引入含制氢、用氢、燃气混氢和储氢组成的氢能多元利用模型,建立了电-热-气-氢IES低碳优化调度模型。算例仿真结果表明,所提模型不仅有效降低了系统经济成本和碳排放量,还提高了新能源的消纳能力,实现了IES低碳、经济和灵活运行。展开更多
A thermodynamic model was developed to analyze the performance of cogeneration plant based on irreversible recuperative Brayton cycle. A parameter, dimensionless total useful energy rate (DTUER), was used as the crite...A thermodynamic model was developed to analyze the performance of cogeneration plant based on irreversible recuperative Brayton cycle. A parameter, dimensionless total useful energy rate (DTUER), was used as the criterion for performance optimization of cogeneration plant. The effects of cycle parameters, internal irreversibilities, and recuperator efficiency on maximum DTUER and on the efficiency at maximum DTUER were numerically investigated. The relation between DTUER and cogeneration efficiency was also analyzed. The results show that there exists an optimal compressor pressure ratio which maximizes the DTUER. It is also found that there exists an optimal power-to-heat ratio which results in a dual-maximum DTUER.展开更多
文摘在“双碳”目标驱动下,构建低碳、经济和灵活的能源利用体系至关重要。为此,提出一种考虑源荷双侧需求响应和氢能多元利用的综合能源系统(integrated energy system,IES)低碳优化调度模型。首先,在源侧热电联产(combined heat and power,CHP)机组中引入电锅炉(electric boiler,EB)和卡琳娜(Kalina)循环模型,解耦CHP“以热定电”和“以电定热”模式,构建CHP灵活输出模型;其次,在荷侧引入电、热需求响应模型,并与源侧CHP灵活输出模型协调优化,构建源荷双侧需求响应模型;最后,在模型中引入含制氢、用氢、燃气混氢和储氢组成的氢能多元利用模型,建立了电-热-气-氢IES低碳优化调度模型。算例仿真结果表明,所提模型不仅有效降低了系统经济成本和碳排放量,还提高了新能源的消纳能力,实现了IES低碳、经济和灵活运行。
基金Project(2011FJ1007-1) supported by the Funds of Key Science and Technology of Hunan Province, ChinaProject(YB2010B027)supported by the Funds for the Author of Provincial Excellent Doctoral Dissertation of Hunan Province, ChinaProject(KF200903)supported by the Opening Funds of Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, China
文摘A thermodynamic model was developed to analyze the performance of cogeneration plant based on irreversible recuperative Brayton cycle. A parameter, dimensionless total useful energy rate (DTUER), was used as the criterion for performance optimization of cogeneration plant. The effects of cycle parameters, internal irreversibilities, and recuperator efficiency on maximum DTUER and on the efficiency at maximum DTUER were numerically investigated. The relation between DTUER and cogeneration efficiency was also analyzed. The results show that there exists an optimal compressor pressure ratio which maximizes the DTUER. It is also found that there exists an optimal power-to-heat ratio which results in a dual-maximum DTUER.
