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随着混合动力汽车和纯电动汽车的发展,能量存储装置对汽车的安全性和可靠性的影响越来越受到重视。电池管理系统(BMS)是提高车辆安全,延长电池寿命,减少能量损耗的关键。如何对BMS的软件和硬件进行开发和验证变得非常重要。使用实际的电池进行相关的研究,会带来极大的不便之处,如实验耗时长、可重复性差、故障注入危险以及难以复现等;而单纯的软件模型不具备实时性也没有硬件的连接,可验证的功能非常有限。为了克服这些困难,使用RT-lab平台针对BMS构建了一个硬件在环测试平台,具有很好的可调性、实时性、灵活性和普适性,可以全面地对BMS进行测试,节省成本和时间。 相似文献
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随着移动性电子设备的广泛应用和电池技术的不断发展,蓄电池的测试实验平台在电池的研究探索过程中显得越发重要。为了实现实时监控蓄电池的电压、电流、温度等数据,以及蓄电池的充放电状态切换的功能,设计了一种基于LabVIEW的蓄电池测试实验平台。实验平台由硬件和软件两部分组成,首先从数据采集卡接口电路和充放电状态切换电路等硬件电路详细介绍了系统的硬件组成。平台采用基于LabVIEW进行上位机开发,其次从电子负载通信模块和数据采集与数字量输出模块等方面阐述了系统的主要软件组成。最后实验表明,平台具有良好的实时测试功能,能实时监控蓄电池的健康状态。 相似文献
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本文通过搭建电池储能系统、储能变流器拓扑结构的实时仿真模型,并结合储能变流器的嵌入式控制器,构建基于RT-LAB实时仿真系统的电池储能变流器硬件在环实时仿真平台,利用实时仿真平台研究储能变流器嵌入式控制器的控制机理。实验结果证明:所搭建的硬件在环实时仿真平台运行良好,其充放电过程的仿真结果与实际储能变流设备输出结果较为一致,可用于验证所开发的储能变流器的调节机制以及电池储能系统的充放电过程,为电池储能变流器控制策略的验证提供了理想的半实物仿真研究平台,为储能变流器在新能源发电等新兴领域的应用研究奠定了基础。 相似文献
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针对电动汽车电池管理系统(BMS)采集模块输出的电压信号容易受到外界工频磁场(PFMF)干扰的问题,提出了一种抗工频磁场干扰的采集模块的设计。分析BMS采集模块工频磁场干扰的机理,对采集模块进行硬件抗干扰和软件滤波设计;依据GB/T 17626.8要求,搭建工频磁场抗干扰测试平台,按照测试等级5对采集模块进行测试。测试结果表明,优化设计的BMS采集模块不仅结构简单,容易实现,且能有效滤除50 Hz工频干扰,提升BMS采集模块的抗干扰性能,对电动汽车抗干扰设计具有一定的参考价值。 相似文献
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Battery management system (BMS) plays a critical role in the development of hybrid electric vehicles (HEVs), plug-in hybrid vehicles (PHEVs) and battery electric vehicles (BEVs). The cell-BMS is the lower-level part of the BMS, which generally takes care of the individual cells directly, with functions mainly including voltage detection and cell balancing. In this paper, a configurable battery cell emulating system is developed to implement the hardware-in-the-loop (HIL) validation of the cell-BMS. The battery cell dynamics is simulated with a parameter-configurable equivalent circuit model consisting of three resistors, two capacitors and a SOC-controlled voltage source. The HIL system emulates battery cell dynamics to validate the function of voltage monitoring. With the bi-directional and power-amplified outputs, the system can also evaluate the performance of both active and passive cell balancing module. Meanwhile the emulated cells can be connected in series, and can be adapted to simulate some faults, e.g., over-charge and over-discharge as well. Initial testing cases using a cell-BMS prototype for the LiMnO2 based battery cells show a good performance of the system. The system standardizes function validation of the cell-BMS before the design finalization and thereby accelerates the BMS development and reduces the development costs. 相似文献
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基于交叉耦合效应的车用内置式永磁电机转子位置估计 总被引:1,自引:0,他引:1
该文提出一种基于滑模观测器和基于凸极效应信号注入相结合的、考虑电机中电感交叉耦合效应的内置式永磁同步电机无速度传感器控制方法。系统在硬件在环平台中实验。直轴和交轴电感间的交叉耦合效应由有限元法算得。所提出的方法能使内置式永磁同步电机获得更好的运行性能。硬件在环平台验证了Matlab/Simulink的结果。样机实验得到的结果与Matlab仿真以及硬件在环实验的结果相吻合。实验结果表明,所提出的算法是有效的,硬件在环平台在一定程度上能模拟样机实验。 相似文献
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针对电气化铁路单相交流供电及列车网侧牵引变流器拓扑特点所引起的牵引电机拍频问题,首先分析了直流侧电压存在2倍电网频率脉动的特征,针对直流侧无LC滤波器的交-直-交电力牵引传动系统,揭示了当逆变器的工作频率接近2倍电网频率时电机拍频现象最为严重的原因。然后利用单周期控制在输入电压脉动时仍能满足伏秒平衡的原理,并结合间接转子磁场定向矢量控制,提出将单周期控制算法作为牵引逆变器的调制策略,实现牵引逆变器-电机系统的无拍频控制。最后,搭建基于OP5600/RT-LAB实时仿真器与DSP TMS320F2812控制器的牵引传动系统半实物实验平台,对传统空间矢量脉宽调制与单周期控制算法进行了半实物实验对比验证,结果表明单周期控制算法能有效地抑制电机的拍频现象。 相似文献
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This paper discusses the development of a real-time digital control system with hardware in the loop (HIL) for modeling and controls education. This environment requires software tools by MathWorks, Inc. and a C++ compiler. The hardware tools include an off-the-shelf data acquisition card and the desired hardware to be controlled. The use of a single environment for dynamic system analysis, control law development, simulation evaluation, and final implementation on an HIL system has many educational advantages as compared to multienvironment settings. This host-target real-time environment is implemented and demonstrated by controlling a nonlinear, open-loop unstable, and time varying custom-built magnetic levitation device. The values of any parameter (control law, reference trajectory) in the Simulink model can be changed dynamically on the host computer without recompiling the control code, and their effects are observed in real-time on the HIL system. This environment allows for extensive experimentation, development of linear and nonlinear controllers, and performance comparison with HIL as shown in the presented examples. The educational features of this environment are presented throughout the paper and were verified in a class setting. 相似文献
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Shiakolas P.S. Van Schenck S.R. Piyabongkarn D. Frangeskou I. 《Education, IEEE Transactions on》2004,47(1):33-41
This paper discusses the use of a real-time digital control environment with a hardware-in-the-loop (HIL) magnetic levitation (Maglev) device for modeling and controls education, with emphasis on neural network (NN) feedforward control. Many educational advantages are realized for the students if a single environment is used for simulation, hardware implementation, and verification as compared with multienvironment settings. This real-time environment requires two personal computers (host and target) employed to control an HIL system. It requires software tools by MathWorks, Inc., a C++ compiler, an off-the-shelf data acquisition card, and the HIL (a nonlinear, open-loop, unstable, and time-varying, custom-built Maglev device) to be controlled. This environment provides for experimentation, such as data collection for system identification using NNs and their implementation as static nonlinear feedforward controllers. In addition, this environment was used to implement and demonstrate NNs with real-time dynamic weight tuning and controller performance comparison under various inputs or changes in the HIL device dynamics, as shown in the presented examples. The educational features of this environment were verified in a classroom setting in a graduate-level NN class. The presented environment is applicable to senior or graduate level (introductory intelligent and digital control) or a general introductory course on NNs with applications. 相似文献
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牵引控制系统中异步电机定子绕组发生故障,导致定子绕组不对称连接,严重影响动车组(EMU)牵引控制系统的安全稳定运行。针对牵引控制系统中异步电机定子一相绕组缺相故障,考虑端电压约束条件,推导电机一相缺相的数学模型,并基于硬件在环(HIL)仿真试验平台对数学模型进行验证。详细阐述了HIL测试平台的系统框架,设计实现方法,软硬件连接配置。将Xilinx软件下搭建的电机缺相数学模型下载至dSPACE仿真机上运行,与牵引控制单元(TCU)连接,进行HIL仿真,通过检测算法对电机缺相故障作出判断与处理。结果表明该仿真测试平台的有效性,可提供接近真实的测试环境,为牵引控制系统电机缺相故障诊断与算法功能开发提供了理论基础和设计依据。 相似文献
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有源电力滤波器(APF)的离线仿真只能保证控制算法正确,而无法反映实际运行时的动态性能。针对这一问题,建立了实时数字仿真器(RTDS)和APF联合的硬件在环(HIL)仿真系统并进行了相应的研究。介绍了APF的关键技术、RTDS的建模方案以及HIL仿真系统的组建策略,并详细分析了该仿真系统的运行环境。对比APF的PSCAD离线仿真、RTDS实时仿真、HIL仿真,结果表明HIL仿真系统能够反映实际运行中存在而在离线仿真中无法体现的诸多问题。在此基础上对采取补偿方法后的仿真结果进行了研究,表明HIL仿真系统能在本质上反映实际运行情况,能够真正检验APF的性能。 相似文献