Optimal Operation for Park Integrated Energy System Considering Interruptible Loads

doi:10.16182/j.issn1004731x.joss.20-0893

Abstract

Abstract:

The operating mode of thermal power generation units has certain limitations in peak shaving capacity. Interruptible load (IL), as a power resource to be tapped, can be applied to the park integrated energy management and microgrid systems to guide users to reduce peak electricity consumption. The IL function is introduced into the park integrated energy system with combined heat and power units to improve the system's peak shaving ability, and the corresponding model is established with the optimization goal of economy. Taking an ecological park of northern region as the example, the adaptive chaotic particle swarm algorithm is used in the simulation. The results show that the park microgrid after the introduction IL project can perform peak-shaving operation, and the operating economy and energy supply flexibility are greatly improved. Compared with the traditional algorithms, the adaptive chaotic particle swarm optimization algorithm is better in the optimization result accuracy and optimization efficiency.

Key words: combined heat and power, setting electricity by heat, interruptible loads, integrated energy, adaptive chaos particle swarm optimization

CLC Number:

TP391

Lixin Ma, Ying Cheng. Optimal Operation for Park Integrated Energy System Considering Interruptible Loads[J]. Journal of System Simulation, 2022, 34(4): 817-825.

Figures/Tables 14

Fig. 1

Table 1

Table 2

Technical parameters of energy supply equipment

供能设备	参数	数值
CHP	α	2.30
CHP	η_CHP	0.30
GB	η_GB	0.90
BA	$ε B A c h$	0.85
	$ε B A d i s$	0.90
	$s o c B A m i n$	0.10
	$s o c B A m a x$	0.90
TST	$ε T S T c h$	0.85
	$ε T S T d i s$	0.90
	$s o c T S T m i n$	0.10
	$s o c T T S T m a x$	0.90

Table 2

Table 3

Fig. 2

Fig. 3

Table 4

Interruptible load user quotation scheme

用户	$T I L, i m a x$ /h	$P I L, i m a x$ /kW	$N I L m a x$ /次	$β I L, i$ / (元/kWh)	γ_IL_,i / (元/kWh)
1	2	520	2	0.05	0.96
2	2	400	2	0.05	0.94
3	2	660	3	0.04	1.21
4	2	430	2	0.04	0.75
5	2	380	2	0.05	0.70
6	2	280	2	0.03	1.40
7	1	320	1	0.04	1.12
8	1	510	1	0.08	1.18
9	1	260	1	0.04	0.50
10	1	460	3	0.03	0.95

Table 4

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Table 5

Tab.6

Fig. 9

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供能设备	k_inv/ (元/kW)	k_om/ (元/kW)	P_max/kW	P_min/kW	year/a
WT	6 000	0.040 0	350	0	25
PV	7 000	0.030 0	507	0	20
CHP	6 000	0.040 1	1 228	242	20
GB	800	0.002 0	5 500	0	20
BA	600	0.001 0	650	0	10
TST	300	0.002 0	1500	0	10

用户编号	中断容量/kW	中断次数(次)	中断时段
1	520	2	09:00—10:00 12:00—13:00
3	660	2	10:00—11:00 14:00—15:00
5	380	2	09:00—10:00 16:00—17:00
8	510	1	10:00

场景	子费用(元)					综合费用(元)	LR/%	MDLR/%	VTP/kW
场景	f_inv	f_om	f_ng	f_cc	f_IL	综合费用(元)	LR/%	MDLR/%	VTP/kW
一	3.35	1 294	20 367	33 400	-	55 064.35	46	10.17	3 670.2
二	3.35	1 276	19 860	30 020	2166	2 166	45.85	11.12	3 293.2