| 串联式复合电源再生制动系统恒流控制 |
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| 引用本文： | 陈燎,孙登辉,盘朝奉.串联式复合电源再生制动系统恒流控制[J].中国公路学报,2019,32(3):155-162. |
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| 作者姓名： | 陈燎 孙登辉 盘朝奉 |
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| 作者单位： | 1. 江苏大学 汽车与交通工程学院, 江苏 镇江 212013;
2. 江苏大学 汽车与交通工程研究院, 江苏 镇江 212013 |
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| 基金项目： | 国家自然科学基金项目（51105178，51475213） |
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| 摘 要： | 再生制动技术可以有效回收车辆制动能量,是提高电动汽车续驶里程的重要途径,超级电容具有高功率密度、高效率的特点,利用蓄电池-超级电容组成的复合电源作为电动汽车的储能装置可以改善电池工作状态,提高电池寿命及可靠性,并提高能量回收率。目前使用复合电源(蓄电池-超级电容)进行再生制动的电动汽车多采用并联形式,针对此类状况,基于无源串联复合电源结构设计其再生制动系统,其主要由电机、超级电容组、整流桥和控制器组成。在控制策略上,采用电压反馈恒定电流制动方式,基于脉冲宽度调制(PWM)控制,在制动过程中根据电动汽车车速与超级电容端电压实时调节PWM的占空比以实现目标制动电流恒定。在MATLAB/Simulink平台上建立再生制动系统仿真模型,验证所提控制策略的有效性,并利用某电动汽车对所设计系统进行滑行、制动等试验。研究结果表明:相比有源并联式复合电源,该系统不需要DC/DC转换器,结构及控制简单,该系统能够较好地实现制动能量回收,所采用的控制策略能够有效地实现恒电流制动,电制动减速度稳定,同时具有较高的能量回收率。
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| 关 键 词： | 汽车工程 再生制动 恒流控制 PWM控制 串联复合电源 |
| 收稿时间： | 2018-01-07 |
Constant Current Control of Regenerative Braking System of Tandem-type Compound Power Supply |
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| CHEN Liao,SUN Deng-hui,PAN Chao-feng.Constant Current Control of Regenerative Braking System of Tandem-type Compound Power Supply[J].China Journal of Highway and Transport,2019,32(3):155-162. |
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| Authors: | CHEN Liao SUN Deng-hui PAN Chao-feng |
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| Affiliation: | 1. School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;
2. Automotive Engineering Research Institute, Jiangsu University, Zhenjiang 212013, Jiangsu, China |
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| Abstract: | Regenerative braking technology can effectively recover vehicle braking energy, and it is an effective method to increase the mileage of electric vehicles. A super capacitor has the characteristics of high power density and high efficiency; therefore, using a battery and super capacitor to form a composite power supply as an energy storage device of the electric vehicle can improve the working state, service life, and reliability of the battery and the efficiency of energy recovery. Currently, electric vehicles often use compound power supply (battery-super capacitor) in parallel for regenerative braking. In this study, the regenerative braking system was designed based on the passive series compound power supply structure (battery-super capacitor), comprising primarily the motor, super capacitor group, rectifier, and controller. Compared with the active compound power supply, the proposed system does not need the DC/DC converter and has a simple structure and control. Pulse width modulation (PWM) control, according to the electric vehicle speed and super capacitor terminal voltage, was used to adjust the duty cycle of PWM to realize constant current in the braking process. The effectiveness of the proposed strategy was verified by modeling the system on the MATLAB/Simulink platform. An electric vehicle was used to test the system, and the results show that the system can recover braking energy at a high rate and can be used to realize constant current braking. |
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| Keywords: | automotive engineering regenerative braking constant current control PWM control series compound power supply |
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