因此无传感器的SRD也是未来的发展趋势之一。
在启动时，没有反电动势，在无传感器模式下电机的位置不能检测到。
At startup, there is no back-EMF due to the stationary motor, and the motor position cannot be detected in sensorless mode.
最后指出复合控制方法是实现全速范围无传感器控制技术的发展趋势。
And finally, the compound control method is considered to be the development trend of full speed sensorless control technology.
无刷直流电机电枢反应造成反电势法无传感器控制中的转子位置检测误差。
The armature-reaction in a sensorless brushless DC(SLBLDC) motor causes detection error of rotor position and consequently leads to advanced or lagged commutation.
提出了一种采用滑模观测器的交流永磁直线伺服电机无传感器控制的新方法。
A new sensorless control method for AC permanent magnet linear servo motor using a sliding mode observer is proposed in this paper.
本文介绍了一种基于同步电机无传感器的大功率电动汽车控制器的设计方案。
This paper introduced a kind of sensorless electric car controller design scheme based on PMSM.
研究了转子位移无传感器检测的两种方法，即小信号注入测试法和差动变压器测试法。
Two methods, which are called as a small test-signal injection and the differential transformer, are studied in order to detect the rotor displacement without sensor.
在该无传感器矢量控制系统中，由于采用了经典的PI调节器，使控制系统更为简单。
Because classical PI controllers were used, the structure of the sensorless vector control was very simple.
主要研究一种无传感器磁轴承转子位置自检测的方法，该方法不需要专用的位移传感器。
A method of automatically detecting rotor position of self-sensing magnetic bearing is studied, in this method, no special displacement sensors are used.
无传感器闭环控制模块包括换向调节、电流环调节和速度环调节、正反转速控制等功能。
Sensorless DC motor close-loop control module include reversing control, current loop regulating, the positive and negative rotational speed controls with speed ring etc.
根据测量和观测的定子电流、电压和磁链，提出了一种永磁同步电动机无传感器控制方案。
A sensorless control strategy for permanent magnet synchronous motors is presented based on the measurement and observation of stator current, voltage and flux vector.
IRMCK203是IR公司最新推出的一款高性能无传感器永磁同步电机单片控制ic。
IRMCK203 is a high performance digital motion control IC for sensor-less Permanent Magnet Synchronous Motor (PMSM) application.
本文介绍了一种基于脉动高频电压信号注入法实现面装式永磁同步电机无传感器控制的方法。
A method to implement sensorless control of Surface Mounted PMSM based on fluctuating high frequency voltage signal injection was introduced.
介绍了直流电动机无传感器测速的实验方法，并选取了三台不同结构的直流电动机进行实验。
The experiment method on sensorless speed estimation in DC motor and three special cases of DC motor with different number of poles and different number of commutator bars were presented.
当转动频率超过FST引脚状态指定的强制换向频率后，运行模式切换到无传感器运行模式。
When the rotational frequency exceeds the forced commutation frequency specified with the status of the FST pins, the operation mode is switched to the sensorless mode.
在控制算法上，采用了磁链估计算法实现电机无传感器控制、三段式低速启动策略启动电机。
On the control algorithm, using flux estimation algorithm for motor speed sensorless control, low speed startup strategy of three stage for motor start.
对无传感器无刷直流电机的驱动系统进行了研究，详细论述了开关电容低通滤波器的设计方法。
In this paper a driving system with sensorless and brushless DC motor is studied, the lowpass design method for switching capacitor is discussed in detail.
在低速范围内，对无传感器感应电动机进行矢量控制时用定子电压和电流推算转子磁通是比较困难的。
The sensorless of induction motor field-oriented control employing stator voltages and currents has difficulty in estimating rotor flux in the low-speed range.
介绍变频空调采用无传感器无刷直流电机作为压缩机的优越性，反电势检测的基本原理以及起动方法。
This paper analyzes the advantage of using sensor2 less brushless DC motor in fuzzy conversing air - condition , the back EMF method and the start technique.
本文采用反电动法控制永磁直流无刷电机，是通过检测反电动势过零点获得转子位置实现无传感器控制。
Using Back-EMF method to control BLDCM, it can realize sensor-free control method by detecting the zero point of EMF in this paper.
介绍了一种基于DSC（数字信号控制器）无刷直流电机无传感器新控制方法，包括工作原理和系统组成。
This paper introduces a new control method of sensorless brushless DCmotor based on DSC, and gives its essential theory and system structure.
介绍了IRMCK203芯片的结构特点。给出了基于IRMCK203的无传感器永磁同步电机的控制系统设计方法。
The structural characteristics of IRMCK203 is introduced, while the control system design method of the sensorless control system for PMSM based on IRMCK203 is given out.
在此，介绍IRMCK203芯片的结构与特点，并给出基于IRMCK203的无传感器永磁同步电机的控制系统设计。
This paper introduces structure and characteristic of IRMCK203 and gives the system design for sensor-less PM motor.
研究采用高频注入法的无传感器直接转矩控制系统，通过注入特定的高频信号来追踪电机转子的空间凸极效应，以此得到转子位置和速度值。
In the sensorless control system, a specified high frequency signal is injected in to trace the magnetic anisotropy of the motor, by which we can get the value of rotor speed and position.
论文针对无刷直流电动机无传感器控制中存在的问题，分别从电机的换相、闭环控制和抗干扰等方面来探讨永磁无刷直流电动机的无传感器控制。
In allusion to the key problem on the control of BLDCM, the thesis discuss some methods about control of it in aspects of commutation of motor, closed-loop control and the disturbance restraint.
在直接转矩控制理论基础上，推导出一种基于定子磁链矢量增量来确定定子参考电压矢量的新型无速度传感器直接转矩控制方案。
This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.
文章分析了交流感应电机无速度传感器的高动态性能控制方案的控制要点。
This paper analyzes theoretical points of the implementation for high performance control of induction motor without speed sensor.
介绍一种无速度传感器异步电动机拖动系统的再起动方法。
This paper proposes a restart method for an asynchronous motor drive system without speed sensor.
介绍一种无速度传感器异步电动机拖动系统的再起动方法。
This paper proposes a restart method for an asynchronous motor drive system without speed sensor.
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