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基于CRUISE的复合电源能量管理系统研究 总被引:2,自引:0,他引:2
研究电动车用复合电源能量管理系统设计问题。为将复合电源技术应用于电动汽车上,以动力电池作为主要能源、超级电容作为负载调控的方式,利用Cruise软件搭建了装用复合电系统的电动汽车整车模型;继而基于工况下整车的功率需求,开展复合电源系统的参数匹配工作,并最终在Simulink软件上进行了能量管理系统的开发,建立装有复合电源系统的电动车辆整车仿真模型。进行联合仿真结果表明,相比单一动力电池系统,复合电源系统可以有效地降低动力电池的大电流冲击,优化电源系统的工作效率,提高系统的制动回收效率,延长动力电池的使用寿命。 相似文献
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本文介绍了一种高精度超级电容器充电电源装置的研制过程,以微控制器STC89C51为核心通过控制芯片及外围电路,来输出高准确度直流电流实现对超级电容器的精确充电和充电特性测试,该装置可依照充电状态的不同,适时调整充电电流大小,避免过充电造成超级电容器损害。仪器智能化程度高、技术指标国内最优,对于超级电容器的基础性研究具有很高的研究价值和现实意义。 相似文献
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针对电动汽车复合电源模糊能量管理,传统模糊控制依赖专家经验存在精度不高、自适应性弱等不足,设计了一种基于改进布谷鸟搜索算法(ICS)优化的模糊控制方法。在Matlab/Simulink平台上建立车载复合电源模糊控制器,采用ICS算法对模糊控制器中的隶属度函数参数进行优化,然后将其嵌入到Advisor软件中复合电源电动汽车模型进行仿真与分析。结果表明,与传统模糊控制相比较,该方法能更好发挥超级电容性能优势,减缓了电池输入、输出功率且整车能耗经济性得到提升。 相似文献
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近年来航天器整体技术发展迅速,对电源系统的轻质小型化要求越来越高;传统的功率电源系统储能单元采用蓄电池组或贮备电池,由于脉冲类负载存在脉冲电流用电的工作特性,在储能单元设计时通常采用增加电池设计容量的方式来满足脉冲类负载供电要求,导致功率电源系统轻质小型化设计受到限制;提出一种新型功率电源系统方案设计思路,引入超级电容器与蓄电池组联合供电输出,充分发挥超级电容器大脉冲放电的优势,有利于实现航天器功率电源系统轻质小型化,具有一定的应用前景。 相似文献
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针对电动车复合电源能量管理中传统模糊控制器设计主要依靠专家先验知识、主观性较大的缺点,提出一种基于鱼群算法优化的模糊能量管理策略,采用鱼群算法对模糊控制器的隶属度函数进行寻优.在MATLAB/Simulink环境下搭建仿真策略模型并导入到Advisor中联合仿真.结果表明,该控制策略能够合理分配蓄电池与超级电容的功率,且优化后的控制策略降低了整车功耗,提升了车辆性能. 相似文献
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Neural network sliding mode control based on on-line identification for electric vehicle with ultracapacitor-battery hybrid power 总被引:1,自引:0,他引:1
Jian-Bo Cao Bing-Gang Cao 《International Journal of Control, Automation and Systems》2009,7(3):409-418
In order to deal with three major problems of electric vehicle (EV): the short driving range, the short life of batteries,
and the poor ability of start-up, a hybrid power system was designed and applied to the EV. It was composed of an ultracapacitor
with high-specific power and long life, four lead-acid batteries, and a bi-directional DC/DC converter. To improve the stability
and reliability of the hybrid-power EV, based on establishing the mathematical models of driving and regenerative-braking
processes, a novel neural network sliding mode controller (NNSMC) was researched and designed for the EV. The controller comprises
a back propagation neural network (BPNN), a radial basis function neural network (RBFNN), and a sliding mode controller (SMC).
The BPNN is used to adaptively adjust the switching gain of the SMC on-line so as to avoid the whippings. The RBFNN is used
to perform system identification and parameter prediction. The experimental results show that the NNSMC is superior to PID
controller at response speed, steady-state tracking error and resisting perturbation whenever driving or braking. Additionally,
the hybrid-power EV with NNSMC can improve the ability of start-up, recover more energy, lengthen the life of batteries, and
increase the driving range than the EV using batteries as its single power source by about 40%, and than the hybrid-power
EV with PID controller by about 4%.
Recommended by Editorial Board member Naira Hovakimyan under the direction of Editor Hyun Seok Yang. This work was supported
by the National Innovation Funding of China (06C26216100555).
Jian-Bo Cao received the B.S. degree in Mechanical Engineering from Dalian Jiaotong University in 2003 and the Ph.D. degree in Mechanical
Engineering from Xi’an Jiaotong University in 2008. He is currently working at Transportation College, Zhejiang Normal University.
His research interests include electric vehicle, hybrid power, and intelligent control.
Bing-Gang Cao received the B.S., M.S., and Ph.D. degrees in Mechanical Engineering from Xi’an Jiaotong University in 1976, 1982, and 1992
respectively. He is currently a Professor at School of Mechanical Engineering, Xi’an Jiaotong University, where he is also
the Director of Research & Development Center of Electric Vehicle. His research interests include robust control, intelligent
control of electric vehicle, noise and vibration control of liquid system, control technology of renewable energy. 相似文献
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为解决混合动力系统实时优化控制问题,本文提出了一种基于二次型性能指标最优的混合动力汽车功率分配优化方案.通过合理的假设和近似,建立了混合动力系统的线性模型,并利用二次型最优控制理论将混合动力最优控制问题转化为二次型最优调节问题进行求解,得到了一个结构简单的实时优化控制算法.5种道路工况下的仿真结果表明,本文提出的控制方法在未来道路工况未知的情况下能够实现混合动力系统的实时优化控制,且节油率与离线计算以燃油消耗最小为性能指标的全局最优控制的节油率相近. 相似文献
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针对现有的无线传感器网络(WSN)功率控制方法存在的节点早死问题,提出一种考虑节点剩余能量的功率控制方法——SAFPC。首先,设计了具有"输入-输出-反馈"机制的两级模糊控制器系统模型,主控制器负责节点发射功率调节,从控制器负责期望节点度调节,自适应地根据网络中节点剩余能量来调节发射功率;然后,分别对主、从控制器的模糊化、模糊规则及解模糊过程进行了详细描述;最后,从网络收敛时间、平均能耗以及生命周期方面对SAFPC进行了仿真分析。实验结果表明,与模糊控制传输功率方法(FCTP)相比,SAFPC收敛速率快12.5%,在不同网络规模情况下节点平均能耗降低3.68%,网络生命周期延长7.9%。可见,SAFPC能有效延长网络生命周期,提高网络动态适应性及链路鲁棒性。 相似文献
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Real-time energy management strategy based on predictive cruise control for hybrid electric vehicles
With the help of traffic information of the connected environment, an energy management strategy (EMS) is proposed based
on preceding vehicle speed prediction, host vehicle speed planning, and dynamic programming (DP) with PI correction to
improve the fuel economy of connected hybrid electric vehicles (HEVs). A conditional linear Gaussian (CLG) model for
estimating the future speed of the preceding vehicle is established and trained by utilizing historical data. Based on the
predicted information of the preceding vehicle and traffic light status, the speed curve of the host vehicle can ensure that the
vehicle follows safety and complies with traffic rules simultaneously as planned. The real-time power allocation is composed
of offline optimization results of DP and the real-time PI correction items according to the actual operation of the engine.
The effectiveness of the control strategy is verified by the simulation system of HEVs in the interconnected environment
established by E-COSM 2021 on the MATLAB/Simulink and CarMaker platforms. 相似文献
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A benchmark control problem was developed for a special session of the IFAC Workshop on Engine and Powertrain Control, Simulation and Modeling (E-COSM 12), held in Rueil-Malmaison, France, in October 2012. The online energy management of a plug-in hybrid-electric vehicle was to be developed by the benchmark participants. The simulator, provided by the benchmark organizers, implements a model of the GM Voltec powertrain. Each solution was evaluated according to several metrics, comprising of energy and fuel economy on two driving profiles unknown to the participants, acceleration and braking performance, computational performance. The nine solutions received are analyzed in terms of the control technique adopted (heuristic rule-based energy management vs. equivalent consumption minimization strategies, ECMS), battery discharge strategy (charge depleting–charge sustaining vs. blended mode), ECMS implementation (vector-based vs. map-based), ways to improve the implementation and improve the computational performance. The solution having achieved the best combined score is compared with a global optimal solution calculated offline using the Pontryagin's minimum principle-derived optimization tool HOT. 相似文献
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并联混合动力汽车模糊逻辑控制策略的建模和仿真 总被引:3,自引:1,他引:2
提出了基于模糊逻辑控制扭矩分配策略,建立了各功能组件模型.并利用ADVIS0R2002仿真平台,完成了该模糊逻辑扭矩控制策略和电气辅助控制策略仿真比较.结果表明,本文提出的模糊逻辑控制策略对提高混合动力汽车的动力性和燃油经济性,改善尾气的排放有明显的作用. 相似文献
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在无线传感器网络乃至无线网络邻域中,拓扑控制一直是研究热点之一,是无线传感器网络中一种重要的能量节省技术。当前已有很多能量高效的拓扑控制算法,它们试图寻求一个合适的节点发射功率或者一个良好的网络拓扑结构,实际应用中两者往往都需要考虑。提出一种新的拓扑控制方法——HFLTC,该方法基于模糊控制和链路质量评估模型优化进行功率控制,并引入XTC算法思想成链。仿真结果表明,这种把拓扑结构和功率控制结合考虑的方法,更节省网络的平均能耗,提高了整个网络的生命周期。 相似文献
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基于模糊混合控制策略,本文提出了一种用于非线性欠驱动自治水下机器人的鲁棒路径跟踪控制方法.利用Sugeno型模糊推理系统,将PD滑模控制器与非奇异终端滑模控制器光滑连接,构造了模糊混合控制器.它能充分融合这两类控制器的优势,无论系统远离平衡点还是在其附近,都能取得快速收敛的效果.如果,借助于非时间参考量,将该混合控制器用于自治水下机器人路径跟踪控制,将有利于提高它在不确定环境中的跟踪能力.最后,通过仿真计算结果验证了该控制策略的有效性. 相似文献