考虑配电网负荷的电动汽车分布式充电控制

doi:10.19562/j.chinasae.qcgc.2023.04.008

Abstract

Abstract:

To address the problem that large-scale plug-in electric vehicle access poses a threat to the safe operation of the distribution grid， a distributed consistent optimal charging management scheme for electric vehicles considering the load of the distribution grid is proposed. The scheme adopts a two-tier optimization structure. The upper layer establishes a mathematical model with the objectives of reducing the distribution grid load fluctuation and satisfying the power demand of charging stations， and uses a particle swarm optimization algorithm to solve the power allocated by the grid to charging stations in each time period. The lower layer establishes a mathematical model with the objectives of maximizing the overall user benefit and reducing the charging current fluctuation in the case of short supply of power of charging stations. A distributed charging protocol based on multi-agent is proposed to solve for the optimal charging power of electric vehicles. The protocol is distributed， plug-and-play for electric vehicles， and has good robustness and scalability. The scheme ensures the safe operation of the distribution network and improves the overall customer satisfaction. The feasibility of the scheme is verified by simulation.

Key words: multi-agent system, orderly charging, distributed control, plug-and-play, plug-in electric vehicle

Zhongqiang Wu,Changxing Zhang. Distributed Charging Control of Electric Vehicles Considering Distribution Grid Load[J].Automotive Engineering, 2023, 45(4): 598-608.

Figures/Tables 26

参数	数值	参数	数值
$ω m a x$	0.7	$δ$ （式（18））	3
$ω m i n$	0.2	$p 1$ （式（19））	2.5
$c 1$ ， $c 2$	2	$α$ （式（22））	30
$η 1$ （式（2））	0.4	$β$ （式（22））	0.6
$η 2$ （式（2））	0.6	$γ$ （式（21））	0.17
$ε$ （式（13））	0.000 5	$a k j$ （式（21））	1

项目	峰值/kW	谷值/kW	峰谷差/kW	方差/ $k W 2$
无序充电	540	208	332	10 967
有序充电	473.7	273.5	200.2	3 949

电池	$Q k / (A · h)$	$V o, k / V$	$R k / Ω$	$S O C k 0$	$S O C k *$	$R D, k / m Ω$	$C D, k / k F$	$P v, k m a x / k W$
PEV1	30	303	1.30	0.25	0.90	4.0	20	4.0
PEV2	29	300	1.28	0.25	0.89	4.0	20	4.0
PEV3	31	295	1.13	0.24	0.91	4.0	20	4.0
PEV4	29	298	1.20	0.21	0.70	4.0	20	4.0
PEV5	25	303	1.13	0.20	0.85	4.0	20	4.0
PEV6	26	300	1.10	0.22	0.83	4.0	20	4.0
PEV7	27	303	1.13	0.29	0.89	4.0	20	4.0
PEV8	25	303	1.13	0.26	0.90	4.0	20	4.0
PEV9	31	290	1.08	0.24	0.87	4.0	20	4.0

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Distributed Charging Control of Electric Vehicles Considering Distribution Grid Load

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