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异步电机矢量控制的虚拟仪器测试系统 总被引:1,自引:1,他引:1
针对数字存贮示波器和现有测试仪器的采样速度和存储容量有限、不能定制功能的问题,介绍了一套基于虚拟仪器技术的异步电机矢量控制的测试系统,对异步电机启动、运行过程中的信号进行采集、保存、显示和分析,用以帮助研究异步电机矢量控制方案。结合实例说明了这套测试系统的应用,给出了实验结果。 相似文献
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以三相异步电动机为研究对象,从电动机调速的实质出发,对异步电机的矢量控制进行了研究。分析了异步电机的数学模型及其矢量控制原理,根据矢量控制原理给出了交流异步电机矢量控制系统总体设计方案,并进行了相关控制仿真。仿真结果表明系统具有较高的动态、稳态性。 相似文献
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提出了一种交流异步电机无速度传感器矢量控制的转速辨识方法,转速估算和磁链观测基于异步电机按转子磁场定向的动态数学模型.以MATLAB/SIMULINK内含的电气系统模块为基础,建立异步电机无速度传感器矢量控制的仿真模型.最后给出了系统仿真结果,通过仿真实验波形说明了所建模型的正确性,控制系统具有满意的辨识精度、优良的动静态性能和较高的控制效果. 相似文献
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电动汽车感应电机矢量控制系统建模仿真 总被引:10,自引:0,他引:10
根据矢量控制原理,利用软件Matlab/Simulink构造了一个电动汽车感应电机矢量控制系统,分别对系统中的感应电机、逆变器、矢量控制算法、驾驶意图以及电动汽车阻力转矩进行建模与仿真。该系统模型能通用于电动汽车感应电机驱动控制系统,只要输入不同系统参数即可,是深入研究电动汽车感应电机矢量控制系统的有效工具。以电动轿车30kW感应电机为例,给出了仿真结果,结果分析证明系统模型的有效性。 相似文献
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Saito Keiji Kamiyama Kenzo Sukegawa Takashi Matsui Takayuki Okuyama Toshiaki 《Industry Applications, IEEE Transactions on》1987,(3):538-544
Theoretical considerations are given for a control scheme to decrease voltage disturbances in a cycloconverter-fed ac drive system, using a form of the vector control concept. The theory has been applied to a multimicroprocessor-based fully digital 72-arm cycloconverter-fed 5000-kW squirrel-cage induction motor drive control system. For speed and position sensors, a high-resolution sine encoder which generates a 15 000-sine wave/r has been developed to achieve high-performance speed regulation, particularly at ultra-low speeds. The factory test results compare far more favorably than those attainable using dc drives. They reveal that the ac drive system is suited to practical applications in main drives for rolling mills, including tandem cold mills. 相似文献
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I Introduction Matrix converter(MC)is a modern energyconversion device that has been developed over the lastthree decades[1~5].Matrix converter fed motor drive issuperiorto pulse width modulation(PWM)inverter drivessince it provides bi-directional power f… 相似文献
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《Electric Power Systems Research》2006,76(9-10):786-800
Vector control of a doubly fed induction generator drive for variable speed wind power generation is described. A wound rotor induction machine with back-to-back three phase power converter bridges between its rotor and the grid forms the electrical system. The control scheme uses stator flux-oriented control for the rotor side converter bridge control and grid voltage vector control for the grid side converter bridge. A complete simulation model is developed for the control of the active and reactive powers of the doubly fed generator under variable speed operation. Several studies are performed to test its operation under different wind conditions. A laboratory test setup consisting of a wound rotor induction machine driven by a variable speed dc motor is used to validate the software simulations. 相似文献
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感应电机矢量控制的研究中,需要对感应电机启动、运行过程中的信号进行采集、保存、显示和分析。而数字存贮示波器和现有测试仪器的采样速度和存储容量有限,所以介绍了一套基于虚拟仪器技术的感应电机矢量控制的测试系统以解决这些问题。结合实例说明了这套测试系统的应用,给出了实验结果,分析了感应电机定子电流谐波和电机同轴度的关系。本测试系统的动态反应性、实时显示效果和智能性都良好,能同步准确的反映感应电机矢量控制的电流波形。 相似文献
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阐述空间矢量脉宽调制技术用于交流感应电机矢量控制系统的基本原理,讨论了间接转子磁场定向电流注入型矢量控制系统的实现,并对它进行仿真研究。仿真结果表明:这种控制技术可以实现感应电机产生转矩的电流分量和产生磁通的电流分量之间的解耦控制,使感应电机获得与他励直流电机一致的瞬态响应特性,实现对负载扰动和参考值变化的快速响应。 相似文献
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Kume T. Sawa T. Yoshida T. Sawmaura M. Sakamoto M. 《Industry Applications, IEEE Transactions on》1992,28(2):421-426
A 40000-r/min vector-controlled induction motor drive is introduced. The vector control of induction motors has been widely accepted in spindle drives of machine tools where they replace conventional DC motors because of the low maintenance requirements. Another important feature of the AC spindle drive is its high-speed capability. The magnetic encoder is most widely used as the speed detector because it is suited for use in an adverse environment. However, the magnetic encoder with high resolution and a high S/N ratio loses the output pulses at extremely high speed. In the drive system introduced, the conventional vector control is used in the low-speed range, and the vector control without the encoder is used in the high-speed range. Close transition between two modes is made without interrupting the operation 相似文献