基于超级电容的列车制动能量回收控制策略

doi:10.16180/j.cnki.issn1007-7820.2022.05.012

Abstract

Abstract:

In view of the problem of recovery and utilization of energy feedback from train electric braking, this study analyzes train operation characteristics and focuses on the relationship between train operation process and traction network voltage fluctuations. Combining the dynamic mismatch between the power supplied by the traction substation and the electric power of the train, a vehicle-mounted braking energy recovery and utilization system is adopted, and a super capacitor charging and discharging control strategy based on the dynamic change of the electric power of the train is proposed. The program is mainly composed of super capacitor series-parallel energy storage units and bidirectional DC-DC converters. MATLAB is used for modeling and simulation analysis. The simulation experiment results show that the control strategy can effectively recover and utilize the braking energy of the train while restraining the voltage fluctuation of the traction network, which provides an effective solution for the recovery and utilization of the braking energy of the train.

Key words: electric braking, energy recovery, super capacitor, converter, voltage fluctuation, energy storage, charge and discharge, control strategy

CLC Number:

TP271

ZENG Guang,YANG Jian,SONG Ruigang. Control Strategy of Supercapacitor Based on Train Braking Energy Recovery[J].Electronic Science and Technology, 2022, 35(5): 74-80.

Figures/Tables 11

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References 18

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名称	元件	数值	单位
升降压电感	L	0.5	mH
滤波电容	CH/CL	3	mF
滤波电容内阻	CHr/CLr	1	mΩ
IGBT额定电压	IGBTH/IGBTL	3 300	V
IGBT额定电流	IGBTH/IGBTL	800	A
基波频率	PWM	20	kHz
死区时间	PWM	0.5	ms
超级电容理想容值	C	17	F
超级电容等效内阻	r	0.44	mΩ
充电限流电阻	R	1	Ω

名称	数值	单位
牵引电机功率	220	kW
最大速度	80	km·h^-1
0~40 km·h^-1加速度	1	m·s^-2
40~80 km·h^-1加速度	0.6	m·s^-2
常用制动减速度	1	m·s^-2
接触网阻抗	0.007	Ω·km^-1
钢轨阻抗	0.009	Ω·km^-1
超级电容组最大电压	800	V
超级电容组初始电压	50	V
辅助设备用电功率	86	kW

Control Strategy of Supercapacitor Based on Train Braking Energy Recovery

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