A Model for Carbon Dioxide Emission Characteristics of Coal-Fired Units for Environment-Economic Dispatch Research

doi:10.16183/j.cnki.jsjtu.2021.368

Abstract

Abstract:

In order to accurately quantify the carbon emissions of coal-fired units with different capacities and serve the goal of “carbon peaking and carbon neutrality” in China better, a novel CO₂ emission characteristic model for environment-economic dispatch of power systems is established. First, the changes in the capacity and coal consumption of coal-fired units in China in recent years are summarized and analyzed. Then, the relationship between the load rate and CO₂ emission intensity is analyzed using the K-Medoide cluster method, and the carbon emission characteristic model of new coal-fired units restricted to basic equations is established. Finally, combined with theoretical analysis and actual data, a simulation is conducted to verify the validity of the model.

Key words: power system, coal-fired units, carbon dioxide, emission intensity, emission characteristic model

CLC Number:

TM732

ZHANG Zhanpeng, BAN Mingfei, GUO Danyang, CHEN Qichao, JIANG Haiyang. A Model for Carbon Dioxide Emission Characteristics of Coal-Fired Units for Environment-Economic Dispatch Research[J]. Journal of Shanghai Jiao Tong University, 2021, 55(12): 1663-1672.

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负荷率/ %	I_g=200 MW		I_g=300 MW		I_g=600 MW		I_g=1000 MW
负荷率/ %	煤耗/[g· (kW·h)^-1]	排放强度/[g· (kW·h)^-1]	煤耗/[g· (kW·h)^-1]	排放强度/[g· (kW·h)^-1]	煤耗/[g· (kW·h)^-1]	排放强度/[g· (kW·h)^-1]	煤耗/[g· (kW·h)^-1]	排放强度/[g· (kW·h)^-1]
50	380	1065	337	945	316	885	305	848
75	343	950	322	900	307	859	289	805
100	325	910	318	885	302	851	282	790

I_g/ MW	a/(t· MW^-2·h^-1)	b/ [t·(MW·h)^-1]	c/ (t·h^-1)
100~200	0.0002766	0.656496	39.063752
200~300	0.0001296	0.764384	24.132013
300~600	0.0000471	0.773090	29.265488
600~1000	0.0000552	0.653291	87.038448

压力参数	I_g/ MW	ζ/ [g·(kW·h)^-1]	E_av/ [g·(kW·h)^-1]
超超临界	1000	288	806
超临界	600	306	856
亚临界	300	319	893
超高压	200	360	1008

机组编号	机组出力		煤耗成本系数			CO₂排放系数			r_amp/ (MW·h^-1)	t_on/ h	t_off/ h
机组编号	P_max/ MW	P_min/ MW	α_i/(美元· MW^-2·h^-1)	β_i/[美元· (MW·h)^-1]	γ_i/(美元· h^-1)	a_i/(t· MW^-2·h^-1)	b_i/[t· (MW·h)^-1]	c_i/ (t·h^-1)	r_amp/ (MW·h^-1)	t_on/ h	t_off/ h
Y1	455	150	0.00048	16.19	1000	0.022	-2.86	130	130	8		8
Y2	455	150	0.00031	17.26	970	0.020	-2.72	132	130	8		8
Y3	130	20	0.00200	16.60	700	0.044	-2.94	138	60	5		5
Y4	130	20	0.00211	16.50	680	0.058	-2.35	130	60	5		5
Y5	162	25	0.00398	19.70	450	0.065	-2.36	125	90	6		6
Y6	80	20	0.00712	22.26	370	0.080	-2.28	110	40	3		3
Y7	85	25	0.00079	27.74	480	0.075	-2.36	135	40	3		3
Y8	55	10	0.00413	25.92	660	0.082	-1.29	157	40	1		1
Y9	55	10	0.00220	27.27	665	0.090	-1.14	160	40	1		1
Y10	55	10	0.00173	27.79	670	0.084	-2.14	138	40	1		1

时段/h	负载/MW	时段/h	负载/MW	时段/h	负载/MW
1	700	9	1300	17	1000
2	750	10	1400	18	1100
3	850	11	1450	19	1200
4	950	12	1500	20	1400
5	1000	13	1400	21	1300
6	1100	14	1300	22	1100
7	1150	15	1200	23	900
8	1200	16	1050	24	800