插电式混合动力汽车电驱动系统过压抑制最优控制
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摘要
在复杂的行驶工况下,插电式混合动力汽车经常处于启停状态,大电流脉冲对汽车电驱动系统高压总线带来巨大冲击,造成高压总线峰值电压不断上升,从而极易造成车辆安全事故。针对插电式混合动力汽车电驱动系统高压总线过压问题,提出一种基于Bang-Bang控制策略来抑制高压总线上的峰值电压,在汽车电驱动系统过压保护装置的实验环境中验证采用的Bang-Bang控制策略的准确性,实验结果表明,采用Bang-Bang控制策略能够有效地抑制高压总线过压,保证混合动力汽车的行驶安全。
Plug-in hybrid electric vehicles are often in start-up and stop state under complex driving conditions. High current pulse has a great impact on the high-voltage bus of automotive electric drive system, resulting in the rising peak voltage of high-voltage bus, which is very easy to cause vehicle safety accidents. Aiming at the problem of high voltage bus overvoltage in plug-in hybrid electric vehicle electric drive system, a Bang-Bang control strategy is proposed to suppress the peak voltage on the high voltage bus. The accuracy of the control strategy is verified in the experimental environment of the overvoltage protection device of the electric drive system. The experimental results show that the Bang-Bang control strategy is adopted. It can effectively suppress high voltage bus overvoltage and ensure the safety of hybrid electric vehicles.
Plug-in hybrid electric vehicles are often in start-up and stop state under complex driving conditions. High current pulse has a great impact on the high-voltage bus of automotive electric drive system, resulting in the rising peak voltage of high-voltage bus, which is very easy to cause vehicle safety accidents. Aiming at the problem of high voltage bus overvoltage in plug-in hybrid electric vehicle electric drive system, a Bang-Bang control strategy is proposed to suppress the peak voltage on the high voltage bus. The accuracy of the control strategy is verified in the experimental environment of the overvoltage protection device of the electric drive system. The experimental results show that the Bang-Bang control strategy is adopted. It can effectively suppress high voltage bus overvoltage and ensure the safety of hybrid electric vehicles.
引文
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[3] 孙大许,兰凤崇,陈吉清.基于I线制动力分配的四驱纯电动汽车制动能量回收策略的研究[J].汽车工程,2013,35(12):1057-1061.
[4] 曲晓冬,王庆年,于远彬.增程式电动车的APU控制策略的研究[J].汽车工程,2013,35(9):763-768.
[5] 徐凌宇,董文婷,孙培德.一种新型的全桥电路副边过压抑制办法[J].微型机与应用,2017,36(1):38-39,43.
[6] 冯庆胜,沈培富,戴淑军.基于有源钳位和动态负反馈相结合的IGBT过压保护[J].大连交通大学学报,2018,39(1):115-120.
[7] LIU W. Introduction to Hybrid Vehicle System Modeling and Control[M].Beijing: China Machine Press,2014.
[8] 刘荣,童亮,马彬,等.复合电源系统能量管理实验研究[J].实验技术与管理,2018,35(1):80-84.
[9] 曹建忠,罗飞,许玉格,等.基于Bang-Bang控制的智能开关预测控制算法[J].华南理工大学学报(自然科学版),2006(9):1-7.
[10] 李蓓,王耀南,吴亮红,等.端电压模糊估算动力电池SOC的新方法[J].湖南大学学报(自然科学版),2009,36(9):47-50.
[11] 高子萍,赵明富.镍氢电池大电流充放电性能研究[J].激光杂志,2015,36(11):91-93.
[12] 张运昌.纯电动轿车双电机耦合驱动系统构型与控制策略研究[D].长春:吉林大学,2015.
[13] 黄林忠,杨军,田毅.发电机转子灭磁及过压保护装置改进方案分析[J].内蒙古电力技术,2000(3):20-21.
[14] 刘豹.现代控制理论[M].北京:机械工业出版社,2006.
[15] 许佳妮,皇甫宜耿,卓生荣,等.大扰动下Buck电源变换PCL控制器设计[J].西北工业大学学报,2016,34(1):73-78.