Multi-Objective Planning of Power-Gas Integrated Energy System Considering Economy and Carbon Emission

doi:10.16183/j.cnki.jsjtu.2021.513

Abstract

Abstract:

In order to accelerate the rapid and economic low-carbon transformation of the power-gas system, a multi-objective stochastic optimization programming model for the whole equipment of the power-gas system was established, which comprehensively considered the economic cost and carbon emissions. First, the mathematical model of the electric-gas network and related equipment was established, and the uncertainty characteristics of the electric and gas loads and photovoltaic output were analyzed by using the scenario method. Next, a mixed-integer quadratically constrained programming (MIQCP) model considering the economic cost and carbon emissions of the system was established. An overall planning was made for power feeders, gas network pipelines, substations, gas distribution stations, gas units, power-to-gas devices, photovoltaic, and energy storage devices. Finally, a numerical example was built to verify the feasibility and effectiveness of the model. The results show that the model can fully consider the coupling relationship between power-gas network lines and a variety of comprehensive energy equipment under different weight choices of objective function, and obtain the overall optimal planning scheme.

Key words: integrated energy, multi-objective, expansion planning, low-carbon transformation

CLC Number:

TM715

ZHU Hainan, WANG Juanjuan, CHEN Bingbing, ZHANG Houwang, CHEN Jian, WU Qiuwei. Multi-Objective Planning of Power-Gas Integrated Energy System Considering Economy and Carbon Emission[J]. Journal of Shanghai Jiao Tong University, 2023, 57(4): 422-431.

Figures/Tables 15

Fig.1

Tab.1

Parameters of alternate feeder

类型	$C c, c c o d$ / (元·km^-1)	$C c, n c o d$ / (元·km^-1)	$P c o d, c m a x$ /MW	$Q c o d, c m a x$ /Mvar	r_c/(Ω·km^-1)	x_c/(Ω·km^-1)
1	—	11.52	6.44	3.39	0.822 3	0.567
2	11.52×10⁴	22.26×10⁴	13.6	7.16	0.411	0.283 5

Tab.1

Tab.2

Parameters of alternate piping

类型	$C f, c p i p$ / (元·km^-1)	$C f, n p i p$ / (元·km^-1)	$F f m a x$ /(m³·h^-1)
1	—	14.88	420
2	35.65×10⁴	37.14×10⁴	2 600

Tab.2

Tab.3

Parameters of alternate transformer substation

类型	$C s, c s u b$ /元	$C s, n s u b$ /元	$S s m a x$ /( MV·A)
1	—	198.0×10⁴	10
2	185.7×10⁴	297.1×10⁴	15
3	267.3×10⁴	445.7×10⁴	20

Tab.3

Tab.4

Parameters of alternate gas distributing station

类型	$C a, c g a t$ /元	$C a, n g a t$ /元	$F a m a x$ /(m³·h^-1)
1	—	399.0×10⁴	3 200
2	331.4×10⁴	533.7×10⁴	4 200
3	468.0×10⁴	668.5×10⁴	5 200

Tab.4

Tab.5

Parameters of alternate gas generator

类型	ζ_g	η_g	$C g g t$ /(元· MW^-1)	$P g m a x$ /MW
1	0.35	0.34	40.24×10⁴	1.08
2	0.40	0.34	83.46×10⁴	2.62

Tab.5

Tab.6

Parameters of alternate power to gas device

类型	ζ_p	$C p p 2 g$ /元	$P p m a x$ /MW
1	0.60	666.4×10⁴	1
2	0.62	1 928.0×10⁴	3

Tab.6

Tab.7

Parameters of alternate PV

类型	$P p m a x$ /MW	$C v p v$ /元	N_p
1	10	2 704×10⁴	2、4、11
2	15	4 056×10⁴	2、4、11
3	20	5 406×10⁴	2、4、11

Tab.7

Tab.8

Parameters of alternate energy storage device

类型	$E e m a x$ / (MW·h)	$P e m a x$ / MW	$C e e s s$ / 元	N_es	μ
1	5	1.75	883.2×10⁴	2、4、11	0.95
2	7	2.45	1 236.0×10⁴	2、4、11	0.95
3	10	3.5	1 766.0×10⁴	2、4、11	0.95

Tab.8

Fig.2

Fig.3

Fig.4

Tab.9

Fig.5

Tab.10

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设备名称	位置	设备类型
设备名称	位置	算例1	算例2	算例3
光伏电站	2、4、11	n3、n1、n3	n1、n1、n2	n3、n3、n3
储能装置	2、4、11	n3、n3、n3	0、0、0	n3、n3、n3
燃气机组	6、18	n2、n2	n1、n1	n2、n2
电转气	6、18	0、0	0、0	n2、n2
变电站	22、23	c2、e1	c2、e1	c3、c3
配气站	26	c2	c2	c3

算例	投资成本/元	运行成本/元	总经济成本/元	碳排放量/kg
算例1	3.422×10⁷	1.336×10⁸	1.678×10⁸	4.378×10⁷
算例2	1.854×10⁷	1.341×10⁸	1.526×10⁸	6.781×10⁷
算例3	4.724×10⁷	1.395×10⁸	1.867×10⁸	3.517×10⁷