IC800SSI228RD2-CE GE伺服电机控制器 用于MTR系列电机

Description

伺服电动机 伺服电动机有两项技术值得注意，一是高密度电机，采用一种叫“大极电机”的设计思想。例如六极九槽电机，定子由九个独立的极构成，在每个极上绕制集中线圈，然后再将九个极拼装起来，形成九个槽的电机铁芯。由于每个极是独立绕制和整形，所以即使采用自动机绕，也能保持槽满率高达90%。这类电机制造工艺好，空间利用和体积都达到了zui小化，故称为高密度电机。

从运行原理上讲，这类电机不属于旋转磁场电机，它在三相脉振磁场下工作，因此，它的适用性、设计方法和运行方式都有一定特殊性，所以这类电机不适合方波电流驱动。 另一类是嵌入式磁钢速率伺服电动机，它可利用凸极效应引起的交、直轴电感随位置变化的特点，构成真正意义上的无位置传感器速率伺服电动驱动系统。 传感器 除了各类光电编码器以外，磁编码器值得关注。磁编码器的体积和重量都比光电编码器小几十倍，温度范围更宽，几乎不怕冲击和振动。其工作原理非常简单，它的定子是一颗内嵌霍尔磁敏元件和DSP的芯片，体积可以小到MSOP-24封装，它的转子是一颗两极磁钢。它的分辨率10—12位，精度8—10位。

这种磁编码器已有供应。 作为空间应用，为了满足-35℃—80℃环境要求，几乎难以采用传统的光电编码器，为此我们自行研制了磁编码器，分辨率16位，精度12位。磁编码器信号处理电路共存于驱动控制电路（FPGA）中，形成传感器与驱动控制电路一体化。 电流传感器是伺服控制必不可少的，小功率系统可以采用电阻采样，一般可采用 [1] 霍尔电流传感器。两种方法都要将模拟信号转换成数字信号，然后参于数字伺服控制。上述A/D转换的输出形式通常是串行数字脉冲或脉宽调制信号。 

Servo motor Servo motor has two technologies worth noting, one is high-density motor, using a design idea called “large pole motor”. For example, the six-pole nine-slot motor, the stator is composed of nine independent poles, and the concentrated coil is wound on each pole, and then the nine poles are assembled to form a nine-slot motor core. Since each pole is wound and shaped independently, the slot filling rate can be as high as 90% even when wound by automata. This kind of motor manufacturing process is good, space utilization and volume are minimized, so it is called high-density motor.

From the operating principle, this type of motor does not belong to the rotating magnetic field motor, it works under the three-phase pulse vibration magnetic field, therefore, its applicability, design method and operation mode have certain particularity, so this type of motor is not suitable for square wave current drive. The other is the embedded magnetic steel speed servo motor, which can make use of the characteristics of the alternating and direct axis inductance caused by the salient pole effect with the change of position, to form a real position sensorless speed servo electric drive system. In addition to various types of photoelectric encoders, magnetic encoders deserve attention. The volume and weight of the magnetic encoder are dozens of times smaller than that of the photoelectric encoder, the temperature range is wider, and it is almost not afraid of shock and vibration. Its working principle is very simple, its stator is an embedded Hall magnetic sensor and DSP chip, the volume can be as small as the MSOP-24 package, its rotor is a bipolar magnetic steel. It has a resolution of 10-12 bits and an accuracy of 8-10 bits.

This magnetic encoder is available. As a space application, in order to meet the requirements of -35℃ -80 ℃ environment, it is almost difficult to use the traditional photoelectric encoder, so we have developed a magnetic encoder with a resolution of 16 bits and a precision of 12 bits. The signal processing circuit of the magnetic encoder coexists in the drive control circuit (FPGA), which forms the integration of the sensor and the drive control circuit. Current sensors are essential for servo control, and resistance sampling can be used in low-power systems, generally using [1] Hall current sensors. Both methods need to convert analog signals into digital signals, and then participate in digital servo control. The output form of the above A/D conversion is usually a serial digital pulse or pulse-width modulated signal.

IC800SSI228RD2-CE GE伺服电机控制器 用于MTR系列电机