Optimization bidding strategy for wind power and energy storage participating in energy market

doi:10.3969/j.issn.1674-1951.2021.09.006

Abstract

Abstract:

To solve the problems in the bidding of wind power and energy storage in energy market and fast frequency modulation market,a coordinated optimization bidding strategy for wind power and energy storage based on approximate dynamic programming is proposed.Firstly,to maximize the income,the optimization bidding model for wind power and energy storage participating in energy market and fast frequency modulation that has taken the randomness of wind power and life degradation of energy storage into consideration is established.Secondly,to deal with the non-convexity and randomness of the bidding model,the approximate optimal solution of the original problem is obtained after being divided into multiple sub-problems by approximate dynamic programming and solved individually.Finally,the proposed method is applied to the power market in Guangzhou and the fast frequency modulation market in Maryland,New Jersey,Pennsylvania（PJM）,and its effectiveness has been proven.

Key words: wind power, energy storage, approximate dynamic programming, fast frequency modulation, bidding strategy, hybrid of wind power and energy storage, renewable energy, new electric power system, carbon neutrality

CLC Number:

TK02

LIU Linpeng, CHEN Jiajun, ZHU Jianquan, HU Wenxia, LUO Tao. Optimization bidding strategy for wind power and energy storage participating in energy market[J]. Huadian Technology, 2021, 43(9): 46-53.

Figures/Tables 9

Fig.1

Fig.2

Tab.1

Parameters of energy storage

参数	$P max bat$ /MW	$E max bat$ /（MW·h）	$η$	$α$	$N fail$	$C invest$ /万元
值	6	36	0.9	0	1 500	6 480

Tab.1

Fig.3

Fig.4

Fig.5

Fig.6

Tab.2

Tab.3

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项目	快速调频RegD	常规调频RegA
日收益/元	282 388.950 2	165 264.454 9
日前能量收益/元	36 377.407 6	28 528.073 8
调频容量补偿/元	148 850.379 7	141 107.217 6
调频里程补偿/元	124 514.430 0	39 978.020 9
平均调频性能指标	0.950 0	0.950 0
储能系统寿命成本/元	27 353.267 0	44 348.857 4
储能系统等效日循环/次	0.994 6	1.612 6
储能系统运行年限/a	11.017 6	6.795 4

项目	夸大系数1.25		夸大系数1.10		夸大系数1.00
项目	广东	PJM	广东	PJM	广东、PJM
日总收益/元	454 568.086 2	449 007.762 8	447 786.138 1	447 619.115 4	429 337.389 0
能量市场收益/元	32 174.678 0	33 952.616 5	33 730.283 6	33 952.616 5	35 652.622 8
调频容量收益/元	276 625.570 0	272 395.873 3	271 677.810 1	271 269.222 9	255 929.790 9
调频里程收益/元	226 165.807 0	222 863.849 4	222 360.959 7	222 105.828 8	209 386.144 2
平均调频性能指标	0.934 8	0.943 4	0.948 8	0.946 2	0.950 0
储能系统运行成本/元	80 397.968 8	80 204.576 3	79 982.915 2	79 708.552 7	71 631.168 8
储能系统等效日循环/次	2.923 5	2.916 5	2.908 46	2.898 4	2.604 7
储能系统运行年限/a	3.748 4	3.757 5	3.767 9	3.780 8	4.207 2