Coordinated Scheduling of Multiple Buildings with Electric-Hydrogen Complementary Considering Frequency Stability Constraints

doi:10.16183/j.cnki.jsjtu.2022.380

Abstract

Abstract:

In order to achieve the dual carbon goal of “carbon peak and carbon neutrality”, it is of great significance to promote the electric and hydrogen complementary integrated energy system. However, with the gradual increase of the penetration rate of renewable energy, the inertia level of the system decreases, and the frequency security is threatened. Aimed at the problem that the traditional optimization scheduling method cannot guarantee the frequency stability of the system, a coordinated optimization scheduling method of electric-hydrogen complementary multiple buildings considering the frequency stability constraint is proposed. First, the architecture of the electric-hydrogen integrated energy system with the building as the ground floor unit is established, and the renewable energy generator sets in the system are controlled by the virtual synchronous generator technology to improve the inertia level of the system. Then, aimed at minimizing the total operating cost of the system in the scheduling period, and considering the inertia requirements of the system in different operation modes of grid-connected and islanding, an optimal scheduling model considering the system frequency stability constraint is established. Finally, an example is given to verify the effectiveness, economy, and environmental protection of the proposed method for frequency stability of the system.

Key words: dual carbon targets, hydrogen storage system, virtual moment of inertia, frequency stability constraint, optimal dispatch

CLC Number:

TM732

FAN Hong, WANG Lankun, XING Mengqing, TIAN Shuxin, YU Weinan. Coordinated Scheduling of Multiple Buildings with Electric-Hydrogen Complementary Considering Frequency Stability Constraints[J]. Journal of Shanghai Jiao Tong University, 2023, 57(12): 1559-1570.

Figures/Tables 15

Fig.1

Fig.2

Fig.3

Tab.1

Parameters of generator set

参数	取值	参数	取值
$P 1 W, m a x$ /kW	100	$P 3 G, m a x$ /kW	100
$H 1 W$ /s	8	$H 3 G$ /s	5
$δ 1 W$ /%	4	$δ 3 G$ /%	5
$P 2 W, m a x$ /kW	120	$P 1 F C, m a x$ /kW	70
$H 2 W$ /s	8	$H 1 H S$ /s	1~3
$δ 2 W$ /%	5	$δ 1 H S$ /%	3
$P 1 G, m a x$ /kW	80	$P 2 F C, m a x$ /kW	90
$H 1 G$ /s	4.8	$H 2 H S$ /s	1~3
$δ 1 G$ /%	4.5	$δ 2 H S$ /%	3.5
$P 2 G, m a x$ /kW	80	$P 3 F C, m a x$ /kW	100
$H 2 G$ /s	4.8	$H 3 H S$ /s	1~3
$δ 2 G$ /%	4.5	$δ 3 H S$ /%	3.5

Tab.1

Tab.2

Key parameters of system

参数	取值	参数	取值
$P m a x g r i d$ /kW	80	\|Δf_max\|/Hz	0.8
η^ch/%	70	\| $R m a x C F$ \|/(Hz·s^-1)	1
η^dis/%	80	$S i O C - m i n$ /%	10
γ^max	3	$S i, t 0 O C$ /%	50
D	1.0	$S i O C - m a x$ /%	100

Tab.2

Tab.3

Fig.4

Tab.4

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Fig.10

Tab.5

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参数/ [元·(kW·h)^-1]	取值	参数/ [元·(kW·h)^-1]	取值
σ^G,CB	0.01	σ^grid	0.49
σ^grid,CB	0.014 02	α^W	0.016 4
σ^G,R	0.065 7	α^PV	0.013 5
σ^G	0.674	α^G	0.085 9
σ^s,b	0.3

运行方式	Δf/Hz		R^CF/(Hz·s^-1)
运行方式	本文模型	仿真模型	本文模型	仿真模型
并网时刻1	-0.21	-0.23	-0.28	-0.27
并网时刻2	-0.35	-0.38	-0.47	-0.49
并网时刻3	-0.12	-0.11	-0.25	-0.26
孤岛时刻1	-0.35	-0.33	-0.47	-0.47
孤岛时刻2	-0.41	-0.47	-0.55	-0.56
孤岛时刻3	-0.32	-0.36	-0.50	-0.49

运行方式	碳排放成本/元
运行方式	场景1	场景2	场景3
并网模式	66.838	69.958	73.676
孤岛模式	41.295	42.726	43.674