Research on electrochemical energy storage to assist new energy consumption and peak load regulation considering carbon penalty

doi:10.3969/j.issn.2097-0706.2022.01.002

Abstract

Abstract:

To achieve the goals of carbon peaking and carbon neutrality, a new energy oriented power system has to take new energy consumption and stable power supply into consideration. To study the peak load shaving capacity of electrochemical energy storage technology, the concepts of carbon penalty for wind and solar power abandonment and peak shaving cost are proposed,and a multi-objective coordinated optimization model aiming at minimizing various cost is established. Based on the data released by a Belgian electricity system operator, simulation is made on the power system installed electrochemical energy storage devices of different capacities. The simulation results show that installing a 800 MW electrochemical energy storage device in the power system will lead to a 4.35% reduction in wind power curtailment ratio, a 17.76% reduction in solar power abandonment ratio and a 19.25% reduction in peak-to-valley difference. This system can consume local wind and solar power at the lowest cost of 43.61 million yuan.

Key words: carbon neutrality, new power system, new energy, electrochemical energy storage, carbon emissions trading, carbon penalty, new energy consumption, peak shaving

CLC Number:

TK01⁺9:TM73:F205

LAN Jing, ZHU Jizhong, LI Shenglin, SHI Puxin, GUO Wanshu, SHI Peiran, JIANG Changming. Research on electrochemical energy storage to assist new energy consumption and peak load regulation considering carbon penalty[J]. Integrated Intelligent Energy, 2022, 44(1): 9-17.

Figures/Tables 11

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机组编号	装机容量/MW	出力下限/MW	a/（元·MW^-2）	b/（元·MW^-1）	c/元	爬坡速率/(MW·h^-1)
^#1—^#4	800	400	0.027 9	106.934	6 206.166	240.0
^#5—^#8	455	250	0.045 3	139.901	4 484.606	136.5
^#9—^#12	350	200	0.051 2	140.031	3 255.938	105.0
^#13—^#16	300	150	0.136 7	145.989	3 110.790	90.0
^#17,^#18	200	100	0.616 0	154.798	3 054.506	60.0
^#19,^#20	135	50	0.782 0	160.265	2 863.457	40.5

阶梯	时间段	电价/[元·(MW·h)^-1]
谷	12:00—15:00	213
平	00:00—06:00, 10:00—11:00,16:00—17:00	560
峰	07:00—09:00, 18:00—23:00	952

项目	储能装置功率/MW
项目	0	600	800	1 000	1 760
弃风率/%	9.91	5.56	5.56	4.70	0
弃光率/%	27.50	15.92	9.74	5.40	0
峰谷差/%	35.45	23.31	19.25	16.61	7.40
经济调度成本/万元	4 434	4 382	4 361	4 369	4 454