Research on Charging-Discharging Control Strategy of Electric Vehicles Considering Wind Power Consumption in Ubiquitous Power Internet of Things

doi:10.12096/j.2096-4528.pgt.20008

Abstract

Abstract:

The charge and discharge load of electric vehicles can participate in the power regulation of power grid to a certain extent, so as to achieve the purpose of cutting peaks and filling valleys and reducing system power fluctuations. Especially for the power systems containing wind farms, electric vehicles can also serve as energy storage devices to increase the utilization of wind power and reduce the impact of wind power fluctuations on the power grid. The control strategy based on the ubiquitous power internet of things of charging-discharging of electric vehicles was studied. A mathematical model containing wind power connected to the grid and electric vehicle charging and discharging was established, and the particle swarm optimization algorithm was used to compare the adjustment effects of different the grid. The simulation results verify the applicability and numbers of electric vehicles after they were connected to effectiveness of electric vehicles participating in the grid adjustment.

Key words: ubiquitous power internet of things, electric vehicle, wind power, particle swarm optimization algorithm

CLC Number:

TK81

Xiaobo CHEN, Xiuyuan YANG. Research on Charging-Discharging Control Strategy of Electric Vehicles Considering Wind Power Consumption in Ubiquitous Power Internet of Things[J]. Power Generation Technology, 2021, 42(5): 561-567.

Figures/Tables 9

References 20

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电动汽车数量/辆	适应度/GW
50	25.715
100	23.103
150	17.628
200	15.839
250	12.014
300	13.021

电动汽车数量/辆	适应度/GW
50	25.715
100	23.103
150	17.628
200	15.839
250	12.014
300	13.021

电动汽车数量/辆	低谷功率/kW	高峰功率/kW	峰谷差/kW
50	7 735	11 290	3 555
100	7 958	11 120	3 162
150	8 090	11 040	2 950
200	8 370	10 800	2 430
250	8 600	10 740	2 140
300	8 605	10 860	2 255

电动汽车数量/辆	低谷功率/kW	高峰功率/kW	峰谷差/kW
50	7 735	11 290	3 555
100	7 958	11 120	3 162
150	8 090	11 040	2 950
200	8 370	10 800	2 430
250	8 600	10 740	2 140
300	8 605	10 860	2 255

电动车数量/辆	用电低谷改善情况/%		用电高峰改善情况/%		用电峰谷差改善情况/%
电动车数量/辆	与原负荷相比	与前一种电动汽车数量参与调节相比	与原负荷相比	与前一种电动汽车数量参与调节相比	与原负荷相比	与前一种电动汽车数量参与调节相比
50	2.25	-	1.42	-	9.28	-
100	5.19	2.88	2.97	1.51	22.87	11.05
150	6.94	1.66	3.71	0.72	31.69	6.70
200	10.64	3.46	6.02	2.17	59.88	17.63
250	13.68	2.75	6.61	0.56	81.54	11.93
300	13.75	0.06	5.43	-1.12	72.28	-5.37