Optimal allocation of a wind‒PV‒battery hybrid system in smart microgrid based on particle swarm optimization algorithm

doi:10.3969/j.issn.2097-0706.2022.06.006

Abstract

Abstract:

With the proposal of the goals of carbon peaking and carbon neutrality,constructing clean energy generators on roof tops is widely recommended in different regions of China.The microgrid consisting of wind power,photovoltaic power and energy storage devices,can reduce carbon emissions from regional production activities through new energy generation,and improve the power supply reliability of living and office areas.To optimize the return of the investment on microgrid,the ratio of wind power,photovoltaic power and energy storage capacity of a hybrid system has been the focus of researches.According to the light condition,wind speed and other unique geographical features in Hainan Province,the optimal allocation of a wind?PV?battery hybrid system in smart microgrid is calculated by particle swarm optimization algorithm.Data collected from the living and office areas of the smart microgrid demonstrative project are used in an economic analysis,which provide theoretical basis and data resources for the further energy efficiency retrofit of smart microgrids.

Key words: smart microgrid, particle swarm optimization algorithm, carbon neutrality, capacity ratio, multi-objective optimization, wind power, photovoltaic power generation, energy storage, energy conservation and emission reduction, electric energy substitution

CLC Number:

TK01：TM731

WANG Xin, CHEN Zucui, BIAN Zaiping, WANG Yeyao, WU Yumiao. Optimal allocation of a wind‒PV‒battery hybrid system in smart microgrid based on particle swarm optimization algorithm[J]. Integrated Intelligent Energy, 2022, 44(6): 52-58.

Figures/Tables 9

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分布式电源	参数
分布式装机容量范围/kW	0~60
电网功率范围/kW	1~50
储能双向换流器功率范围/kW	-30~30
最大迭代次数	300
搜索空间维数	72
粒子个数	600

设备类型	功率/kW	数量/台	合计/kW
电脑	0.25	16	4.00
空调	2.00	5	10.00
照明	0.04	50	2.00
复印机	1.50	2	3.00
打印机	0.50	10	5.00
电热水器	2.00	1	2.00
电冰箱	0.05	1	0.05
机房设备	4.00	1	4.00
音控设备	1.00	1	1.00
会议设备	5.50	1	5.50
总计			36.55

月份	多年月平均总辐照值/(MJ∙m^-2)	风速/(m∙s^-1)
1	522.36	3.78
2	558.36	3.78
3	702.00	3.00
4	747.36	3.33
5	738.72	4.78
6	678.24	4.66
7	688.68	5.78
8	649.44	2.50
9	585.36	4.55
10	543.60	5.55
11	465.48	4.22
12	436.32	4.33

电源	装机成本/(万元∙kW^-1)	运行维护成本/[元∙(kW∙a)^-1]
PV	0.45	100
风电	1.00	130
储能	0.15	20

指标	数据
平均年发电量/(MW∙h)	23.3
平均年节约标准煤/t	7.048
平均年减少CO₂排放/t	19.385