无速度传感器雷达交流伺服系统设计

利用DSP芯片TMS320X24X，采用模型参考自适应控制策略进行交流电机速度估算，构成雷达交流伺服系统速度内回路，并给出了原理框图和程序设计。仿真实验证明了该系统具有良好性能。     

基于半实物仿真的异步电机实时运动控制系统实验平台设计

异步电机的控制是本科教学中的重要内容。传统DSP电机控制实验程序复杂,而采用DSPACE的半实物仿真造价昂贵。本文设计了将原有纯软件连续系统仿真改进为DSP控制器所支持的离散化控制算法模型,可以实现从 Simulink 模型到控制器实时硬件代码的自动下载,完成上位机与控制器的数据交互,基于GUI环境可实时对电机运行状态和参数波形在线观测并发送控制指令。本文对异步电机控制的教学有一定的指导作用。     

基于DSP的多步进电机联动控制研究

以正在开发的切割机器人为研究背景,论述了应用数字信号处理器DSP实现多步进电机联动的控制方法.介绍了控制系统组成结构,详细阐述了通过DSP控制器解决步进电机的加减速问题和多轴联动问题.也介绍了实际应用过程中,在系统处理中断响应及DSP控制程序编写上需要注意的一些问题.实验表明由DSP控制多步进电机的联动是灵活,准确且可行的.     

基于两种参数估计算法的离散时间确定系统的多模型自适应控制研究

对于参数存在较大变动的系统或时变系统(如系统出现局部故障),多模型自适应控制系统的过渡误差小于单一的自适应控制系统。基于多种参数估计算法的多模型自适应控制方法用于系统的参数估计和控制,参数收敛速度上优于基于一种参数估计算法的多模型自适应控制方法。本文研究了离散时间确定系统的多模型自适应控制问题,并介绍了两种递推参数估计算法及其收敛性质,最后给出仿真例子说明了结论的正确性。     

MCP2515在DSP的CAN口扩展中的应用

数字信号处理(DSP)技术开始广泛应用于微机保护领域,在基于DSP的电力保护装置中趋向于采用双冗余CAN控制系统。介绍了一种新型的独立CAN通信控制器MCP2515,给出其在DSP芯片TMS320F2812的CAN总线扩展中的一个应用实例。并且硬件设计给出了电路原理图,软件设计给出了系统程序的设计流程图,并对其作了简要的说明。由MCP2515扩展实现的双冗余CAN控制系统可广泛应用电力监控和保护产品中。     

基于DSP的电机控制系统硬件平台设计

本文介绍一款用于电机控制系统领域的定点DSP芯片TMS320＜F240＞A的主要技术特点，并给出了可以实际应用的基于此芯片实现的全数字电机控制硬件平台。     

基于DSP的运动控制系统设计

为了满足CNC齿轮测量中心的测量精要求.针时定点数字信号处理器(DSP)TMS320LF2407A的特点,设计一种以DSP运动控制为核心的运动控制系统.该系统通过DSP内部集成的A/D转换模块对传感器电压值进行采样,由DSP控制给出指令,驱动电机运动,实现了位置控制,测量精度大大提高.并给出系统硬件电路设计.根据实际情况,给出CAMAC接口电路设计.     

SM8954A单片机在步进电机升降速控制中的应用发

针对步进电机在升降速过程中会发生失步、堵转等现象,文章根据单片机软件设计方法在电机铁芯扭槽叠扣冲压控制系统中的实际应用,分析了步进电机的加减速离散控制方法,并给出了控制系统中实现步进电机升降速的程序框图.     

5 kW燃料电池发电系统中能量管理环节的控制设计

针对燃料电池动态响应上的不足,本文探讨了燃料电池发电系统中的能量管理控制系统的设计方法。讨论了能量管理控制系统的结构和控制器的设计,提出了一种基于电流间接控制的能量管理控制方式。建立了能量管理控制系统的控制模型。重点分析了控制系统中电流控制环路的设计方法,设计了能量管理环节中的电流控制器。建立了5kW燃料电池发电系统,通过实验验证了所设计的能量管理控制系统的有效性。     

电机控制用DSP的比较

针对电机控制系统的要求,介绍了适于电机控制用的三种典型DSP,对这三种DSP的性能进行对比,并分析了DSP的选型原则,从而为电机控制系统的设计提供DSP选型参考.     

基于AVR的纯电动车无刷直流电机驱动系统

根据整车参数要求。设计一种基于AVR单片机控制的纯电动汽车无刷直流电机驱动系统。该系统以MEGA48单片机作为控制芯片．进行了电源电路设计、系统硬件保护电路设计、三相全桥逆变电路设计、逆变器驱动电路设计,利用PI控制器进行电机电流速度的双闭环控制,并采用C语言进行模块化编程和结构化编程。该系统可以实现欠压、过流和堵转保护。在系统出错情况下具有自检功能,同时具有升级空间,便于用户二次开发。     

基于Infineon XC2267的电机控制系统设计

在电动汽车的研究当中,驱动电机及其控制系统设计尤为重要,文中基于英飞凌公司的16位微控制器芯片XC2267,设计了电动汽车用永磁同步电机磁场定向矢量控制系统。对控制系统部分硬件电路进行了设计,并在Simulink仿真环境下建立电机控制系统的的仿真模型。仿真结果表明,系统设计合理、电机运行响应快、稳定性好,而且对永磁同步电机实际控制系统具有一定的指导意义。     

Development of a Hybrid Electric Vehicle With a Hydrogen-Fueled IC Engine

The motivation for the use of hydrogen as fuel is that it can be renewable and can reduce emissions. Hydrogen fuel cell vehicles are still likely to be more of a far-term reality because of their high manufacturing cost. A hybrid electric vehicle (HEV) with a hydrogen-fueled internal combustion (IC) engine has the potential of becoming a low-emission low-cost practical solution in the near future. This paper describes a standard sport utility vehicle (SUV) that has been converted into a hydrogen-powered HEV. The powertrain utilizes compressed gaseous hydrogen as fuel, a boosted hydrogen IC engine, an induction motor, a hydraulic transmission, regenerative braking, advanced nickel-metal hybrid batteries, and a real-time control system. Tests show that the vehicle can deliver higher fuel economy and much lower emissions than those of a traditional SUV without compromises in performance. This paper presents an overview of the prototype vehicle and emphasizes some of the unique features of this energy-saving clean environment solution     

Optimization of Fuel Cell and Supercapacitor for Fuel-Cell Electric Vehicles

In this paper, an optimal design to minimize the cost of the fuel cell and supercapacitor in a fuel-cell electric vehicle is presented. It is assumed that the cost of the fuel cell and supercapacitor is a function of the number of units of each, respectively. The constraints on the number of fuel-cell units and supercapacitor units are derived according to the system requirement of maintaining stable dc-link voltage for all possible vehicle operations. These constraints are combined with the derived cost function to obtain the optimal number of fuel-cell units and supercapacitor units and the minimum cost. The cost, volume, and weight of the optimized fuel cell and supercapacitor of the powertrain and the fuel economy of the vehicle are evaluated. Simulation results are presented to verify the design     

High energy efficiency oriented-control and design of WFSM based on driving condition of electric vehicle

The purpose of this paper is to increase the energy efficiency of an electric vehicle (EV) with a wound-field synchronous motor (WFSM). Therefore, methods are proposed to estimate and improve the energy efficiency of the EV as well as the performance of the WFSM. The following contributions are provided: 1) EV model as well as the mathematical model of the electric motor are explained considering the common Artemis driving cycle (CADC); 2) a control method for maximizing the energy efficiency of the electric motor is proposed; 3) analysis methods for calculating the circuit parameters (resistance, inductance, and flux linkage) and losses (ohmic, iron, and mechanical loss) are described. The efficiency of the machine is accurately determined using the proposed analysis method; 4) based on the proposed methods, the design process of the WFSM is proposed to improve the energy efficiency considering the vehicle system and driving cycle; and 5) the proposed methods are verified through tests of the prototype and improved motor. As a result, through the proposed design and control method, even though the volume of the improved motor was 7.8% smaller than that of the prototype, the efficiency of the improved motor was higher than that of the prototype in all regions. In addition, to confirm the effectiveness of the proposed methods, the performance of the electric vehicle considering the driving cycle was analyzed according to the characteristics of the electric motor. The energy loss of the improved motor with the proposed control and design method was 63.3% less than that of the prototype. Accordingly, the energy efficiency of the vehicle system and the energy consumption of the battery increased by 7.8%p and decreased by 2.0 kWh, respectively.     

混合动力电动汽车用电机及驱动控制器的电磁兼容设计

电机及驱动控制器作为电动汽车的关键部件,其电磁兼容设计对于保证电动汽车的可靠运行非常重要.介绍了国家十五项目中某混合动力轿车用电机及控制器系统的电磁兼容措施,分别从控制电路、信号电缆、功率电路及屏蔽机箱等工程角度进行了分析和设计.该系统的电磁兼容性符合GB/T17619-1998的要求,且已应用于实际混合动力电动汽车,运行情况良好.     

A fault-tolerant control architecture for induction motor drives in automotive applications

This paper describes a fault-tolerant control system for a high-performance induction motor drive that propels an electrical vehicle (EV) or hybrid electric vehicle (HEV). In the proposed control scheme, the developed system takes into account the controller transition smoothness in the event of sensor failure. Moreover, due to the EV or HEV requirements for sensorless operations, a practical sensorless control scheme is developed and used within the proposed fault-tolerant control system. This requires the presence of an adaptive flux observer. The speed estimator is based on the approximation of the magnetic characteristic slope of the induction motor to the mutual inductance value. Simulation results, in terms of speed and torque responses, show the effectiveness of the proposed approach.     

电动汽车车载空调变频器设计与实现

本文介绍永磁同步电机应用于电动汽车的优势,建立了以sTM32F103为核心的车载空调永磁同步电机矢量控制系统,介绍系统的软硬件设计流程与具体实现方法。试验结果表明,该空调变频器设计方案能满足空调压缩机的驱动控制,具有可行性与实用性。     

A bidirectional DC-DC converter for fuel cell electric vehicle driving system

This paper presents a power converter for a fuel cell electric vehicle driving system. A new bidirectional, isolated topology is proposed in consideration of the differing fuel cell characteristics from traditional chemical-power battery and safety requirements. The studied converter has the advantages of high efficiency, simple circuit, and low cost. The detailed design and operating principles are analyzed and described. The simulation and experimental waveforms for the proposed converter are shown to verify its feasibility.     

基于AT89S52单片机的电机控制系统设计

介绍一种以AT89S52单片机为控制核心的电机控制系统。用AT89S52单片机、液晶显示器、可逆永磁电机、继电器、LED、按键等完成系统的硬件设计;以Keil μ Vision 3为软件开发环境完成系统的程序设计。经实际运行,该系统实现了在按键的操作下对时间进行设定,控制电机的启动、正反向转动、停止,状态指示灯正确显示工作状态,LCD显示时间。