Optimal scheduling of integrated energy system in industrial parks considering oxy-fuel combustion technology and demand response

doi:10.11930/j.issn.1004-9649.202507026

Abstract

Abstract:

Under the background of carbon peaking and carbon neutrality, the integrated energy system (IES) in industrial parks has attracted widespread attention due to its high flexibility and low carbon emissions. To further reduce carbon emissions of the industrial park IES and improve its economic benefits, we develops an optimal scheduling model for the industrial park IES, considering the cooperation between oxy-fuel combustion capture technology and power-to-hydrogen (P2H) technology, and the demand response mechanism. Firstly, the model improves system flexibility and reduces carbon emissions of thermal power units by retrofitting them with oxy-fuel combustion. Secondly, the introduction of cooperation between P2H and oxy-fuel combustion power plants not only increases the absorption capacity of wind and solar energy but also reduces the oxygen supply pressure of oxy-fuel combustion power plants. Then, the hydrogen blending equipment reduces energy loss during the energy conversion process, realizing the high-value utilization of hydrogen. Finally, the introduction of demand response further improves the flexibility of the IES and reduces carbon emissions, based on which a minimum-cost optimal scheduling model for the industrial park IES is established. Through a case study, it is found that the actual carbon emissions are 29.60% lower than the carbon quota, verifying the effectiveness of the proposed model. Sensitivity analysis is conducted to examine the impact of key variables on the industrial park IES.

Key words: integrated energy system, oxy-fuel combustion power plant, incentive-based demand response, thermal efficiency variation, power-to-hydrogen cooperation mechanism

QIN Yuming, ZHU Yun. Optimal scheduling of integrated energy system in industrial parks considering oxy-fuel combustion technology and demand response[J]. Electric Power, 2026, 59(3): 48-63.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.202507026

https://www.electricpower.com.cn/EN/Y2026/V59/I3/48

Figures/Tables 28

References 42

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参数名	值	参数名	值
$ {a_{\rm TP}}$/(t·(MW·h)^–2)	0.000 75	$ \alpha $/((MW·h)·m^–3)	0.000 303
$ {b_{\rm TP}} $/(t·(MW·h)^–1)	0.3	$ {P_{{\text{ASU}}\max }} $/MW	6
$ {c_{\rm TP}}/\rm t $	0.72	$ {P_{{\text{ASU}}\min }} $/MW	3
$ \theta $	0.978	$ {O_{\rm S\max }}$/m³	150 000
$ \chi $/(m³·t^–1)	1 650	$ {O_{\rm S\min }}$/m³	30 000
$ \partial $	0.98	$ {\beta }_{\rm C} $/(元·t^–1)	800
$ {P_{\rm TP\min }} $/MW	10	$ {P_{\rm TP\min }} $/MW	50
$ \delta $/((MW·h)·t^–1)	0.089 3	$ \Delta {P_{\rm TP\max }} $/MW	10
$ {A_{\rm TPe}} $/(t·(MW·h)^–1)	0.804 9	$ {\beta }_{\rm TP} $/(元·(MW·h)^–1)	50
$ {\beta }_{\rm ASU} $/(元·(MW·h)^–1)	52	$ {\beta }_{\rm CPU} $/(元·(MW·h)^–1)	30
$ {k_{\rm C}} $	2.4

参数名	值	参数名	值
$ {a_{\rm TP}}$/(t·(MW·h)^–2)	0.000 75	$ \alpha $/((MW·h)·m^–3)	0.000 303
$ {b_{\rm TP}} $/(t·(MW·h)^–1)	0.3	$ {P_{{\text{ASU}}\max }} $/MW	6
$ {c_{\rm TP}}/\rm t $	0.72	$ {P_{{\text{ASU}}\min }} $/MW	3
$ \theta $	0.978	$ {O_{\rm S\max }}$/m³	150 000
$ \chi $/(m³·t^–1)	1 650	$ {O_{\rm S\min }}$/m³	30 000
$ \partial $	0.98	$ {\beta }_{\rm C} $/(元·t^–1)	800
$ {P_{\rm TP\min }} $/MW	10	$ {P_{\rm TP\min }} $/MW	50
$ \delta $/((MW·h)·t^–1)	0.089 3	$ \Delta {P_{\rm TP\max }} $/MW	10
$ {A_{\rm TPe}} $/(t·(MW·h)^–1)	0.804 9	$ {\beta }_{\rm TP} $/(元·(MW·h)^–1)	50
$ {\beta }_{\rm ASU} $/(元·(MW·h)^–1)	52	$ {\beta }_{\rm CPU} $/(元·(MW·h)^–1)	30
$ {k_{\rm C}} $	2.4

参数名	值	参数名	值
$ {P_1}$/MW	7	$ {K_1} $/(m³·(MW·h)^–1)	234.375
$ {P_2} $/MW	23	$ {K_2} $/(m³·(MW·h)^–1)	265.625
$ {P_3} $/MW	30	$ {K_3} $/(m³·(MW·h)^–1)	234.375
$ {H_{\max }} $/m³	50 000	$ {\beta }_{\rm EL} $/(元·(MW·h)^–1)	20
$ {H_{\min }} $/m³	10 000

参数名	值	参数名	值
$ {P_1}$/MW	7	$ {K_1} $/(m³·(MW·h)^–1)	234.375
$ {P_2} $/MW	23	$ {K_2} $/(m³·(MW·h)^–1)	265.625
$ {P_3} $/MW	30	$ {K_3} $/(m³·(MW·h)^–1)	234.375
$ {H_{\max }} $/m³	50 000	$ {\beta }_{\rm EL} $/(元·(MW·h)^–1)	20
$ {H_{\min }} $/m³	10 000

参数名	值	参数名	值
$ {\eta _{\rm GT,e}} $	0.4	$ Q{}_{\rm GT\min } $/MW	25
$ {\eta _{\rm GT,h}} $	0.4	$ Q{}_{\rm GT\max } $/MW	125
$ {\sigma _{\rm h2}} $/((MW·h)·m^–3)	0.003 2	$ \Delta Q{}_{\rm GT\max } $/MW	25
$ {\sigma _{\rm gas}} $/((MW·h)·m^–3)	0.01	$ {\beta }_{\rm GT} $/(元·(MW·h)^–1)	120
$ {P_{{\rm GB}\min }} $/MW	20	$ {P_{{\rm GB}\max }} $/MW	100
$ \Delta {P_{{\rm GB}\max }} $/MW	20	$ {\eta _{{\rm GB}}} $	0.9
$ {\beta }_{{\rm GB}} $/(元·(MW·h)^–1)	30	$ {\beta }_{\rm Gas} $/(元·m^–3)	2.275 4
$ {A_{\rm GTe}} $/(t·(MW·h)^–1)	0.328 8	$ {A_{\rm h}} $/(t·(MW·h)^–1)	0.053 3