Energy Storage Requirements and Configuration Analysis Based on Typical Characteristics of Global Energy Internet

doi:10.12096/j.2096-4528.pgt.20082

Abstract

Abstract:

The development of global energy internet (GEI) poses greater challenges to long-distance power energy supply and demand balance and sustainable supply reliability. Different types of energy storage technologies are the preferred means to solve the power and electricity balance, which are essential parts of GEI development. The requirements and configuring of energy storage are closely related to the characteristics and goals of specific application scenarios. Through literature research and demonstration projects, the configuration methods and performance requirements of energy storage technologies in three typical application scenarios of GEI were analyzed. The suggestions on energy storage types, power of energy storage configuration and discharge time range suitable for different applications were given. Aiming at the characteristics of large-scale clean energy and long-distance transmission of the GEI, a specific energy storage access topology was proposed, which provided a solution for the functional verification of simulated energy storage access to GEI applications.

Key words: global energy internet, energy storage, configuration, access topology

CLC Number:

TK02
TM711.1

Jilei YE, Bin LI, Yu ZHANG, Mingzhe LI, Bowen SHI, Haojing WANG. Energy Storage Requirements and Configuration Analysis Based on Typical Characteristics of Global Energy Internet[J]. Power Generation Technology, 2021, 42(1): 20-30.

Figures/Tables 15

References 33

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储能类型		能量密度/ (W·h/kg)	自放电率/ (%/d)	额定功率下放电时间/h	循环寿命/次	能量效率/%	响应时间	安全性	功率等级/MW
抽水蓄能		0.5~1.5	-	1~24+	> 15 000	65~80	分钟	高	数百~数千
压缩空气储能		30~60	-	1~24+	> 10 000	41~75	数秒~数分钟	高	数个~数千
飞轮		10~30	100	0~0.01	10⁴~10⁷	80~90	< 1周波	高	0~数个
电化学储能	铅酸电池	30~50	< 0.1	1~5	250~1 500(100%DOD)	70~80	< 1/4周波	高	0~数十
	磷酸铁锂电池	75~200	1	0.017~4+	2 000~2 500(100%DOD)	88	< 1/4周波	较高	0~数十
	三元锂离子电池	200~300	1	0.017~4+	3 500~4 500(100%DOD)	88	< 1/4周波	较低	0~数十
	液流电池	10~30	小	2~12	> 10 000(100%DOD)	60~75	< 1/4周波	高	0~数十
	钠硫电池	150~240	-	4~8	2 500~4 500(100%DOD)	70~85	< 1/4周波	较低	0~数十
储热		80~200	0.05~1.00	1~24+	5~15	14~18	-	高	数十~数百
储氢		400~1 000	0	12+	1 000~10 000	35~40	< 1/4周波	较低	0~数十

储能类型		能量密度/ (W·h/kg)	自放电率/ (%/d)	额定功率下放电时间/h	循环寿命/次	能量效率/%	响应时间	安全性	功率等级/MW
抽水蓄能		0.5~1.5	-	1~24+	> 15 000	65~80	分钟	高	数百~数千
压缩空气储能		30~60	-	1~24+	> 10 000	41~75	数秒~数分钟	高	数个~数千
飞轮		10~30	100	0~0.01	10⁴~10⁷	80~90	< 1周波	高	0~数个
电化学储能	铅酸电池	30~50	< 0.1	1~5	250~1 500(100%DOD)	70~80	< 1/4周波	高	0~数十
	磷酸铁锂电池	75~200	1	0.017~4+	2 000~2 500(100%DOD)	88	< 1/4周波	较高	0~数十
	三元锂离子电池	200~300	1	0.017~4+	3 500~4 500(100%DOD)	88	< 1/4周波	较低	0~数十
	液流电池	10~30	小	2~12	> 10 000(100%DOD)	60~75	< 1/4周波	高	0~数十
	钠硫电池	150~240	-	4~8	2 500~4 500(100%DOD)	70~85	< 1/4周波	较低	0~数十
储热		80~200	0.05~1.00	1~24+	5~15	14~18	-	高	数十~数百
储氢		400~1 000	0	12+	1 000~10 000	35~40	< 1/4周波	较低	0~数十

新建风电场	装机容量/MW	置信容量/MW	容量置信度/%
甘昌风W1	501	93.310 1	18.62
甘昌风W2	501	93.310 1	18.62
甘威风W1	751.5	138.081 9	18.37
甘威风W2	751.5	138.081 9	18.37
甘掖风W1	751.5	76.002 1	10.11
甘掖风W2	751.5	76.002 1	10.11
甘玉门W1	801	83.480 4	10.42
青海风W1	801	177.187 6	22.12
青海风W2	801	177.187 6	22.12
青海风W3	801	177.187 6	22.12

新建风电场	装机容量/MW	置信容量/MW	容量置信度/%
甘昌风W1	501	93.310 1	18.62
甘昌风W2	501	93.310 1	18.62
甘威风W1	751.5	138.081 9	18.37
甘威风W2	751.5	138.081 9	18.37
甘掖风W1	751.5	76.002 1	10.11
甘掖风W2	751.5	76.002 1	10.11
甘玉门W1	801	83.480 4	10.42
青海风W1	801	177.187 6	22.12
青海风W2	801	177.187 6	22.12
青海风W3	801	177.187 6	22.12

场景	理论最大消纳能力/%	实际消纳能力/%	储能配置(单位可再生能源功率)
不考虑时差	47.1	36.4	0.52/1.91
考虑时差	99.6	89.4	0.334/1.800