SGDF-A2CS  消谐器  实现谐振频率与工频分离

安川电机SGDF-A2CS伺服放大器

型号：SGDF-A2CS。

结构形式：模块式。

编码器类型：增量型。

驱动器类型：交流。

控制器类型：PLC。

分辨率：1024。

通讯端口：数字信号。

SGDF-A2CS是安川伺服驱动器的型号，其产品介绍为：SGDF-A2CP型6～35KV电压互感器中性点用非线性电阻消谐阻尼器（简称消谐器），是安装在6～35KV电压互感器一次绕组Y结线中性点与地之间的一种非线性电阻消谐阻尼器件。

消谐器有以下几种：

电抗式消谐器：通过串联电抗元件来提高电路的谐振频率，实现谐振频率与工频分离，从而消除谐波。

电容式消谐器：通过并联电容元件来形成一个谐振回路，使谐振频率与工频相分离，从而消除谐波。

无功功率自动补偿式消谐器：不仅能够消除谐波，还能够对电网进行无功功率的调节，提高电网的功率因数。

谐振型消谐器：利用谐振电路的共振特性，通过改变电路的谐振频率，使得谐波电流得到消除。

安川伺服驱动器具有体积小、速度快、操作简单等方面的优点，被广泛应用于工业自动化、机器人、机械制造等领域。

其控制方式经历了以下四代：

SGDF-A2CS单、成本较低、机械特性硬度也较好，能够满足一般传动的平滑调速要求，已在产业的各个领域得到广泛应用。

矢量控制（VC）控制方式。其特点是能进行精确的速度控制，调速范围宽、动态响应快、抗过载能力强。

SGDF-A2CS直接转矩控制（DTC）控制方式。其特点是控制简单、直观、易实现，并且在理论上具有等同于直流电机的动态性能极限。

矩阵式变换控制方式

伺服放大器是用来控制伺服电机的一种控制器，其作用类似于变频器作用于普通交流马达，属于伺服系统的一部分，主要应用于高精度的定位系统。一般是通过位置、速度和力矩三种方式对伺服电机进行控制，实现高精度的传动系统定位，是传动技术的高端产品。

SGDF-A2CS伺服放大器具备防液能力，但不能完全防液且防腐蚀，所以需要做好电机的防护措施。

SGDF-A2CS  消谐器  实现谐振频率与工频分离

Yaskawa Electric SGDF-A2CS servo amplifier

Model: SGDF-A2CS.

Structure: modular.

Encoder type: incremental.

Drive type: AC.

Controller type: PLC.

Resolution: 1024.

Communication port: digital signal.

SGDF-A2CS is the model of Ashkawa servo driver, its product introduction is: SGDF-A2CP type 6 ~ 35KV voltage transformer neutral point with nonlinear resistance damping (referred to as the damper), is installed in 6 ~ 35KV voltage transformer primary winding Y junction line between the neutral point and the ground a nonlinear resistance damping device.

There are the following kinds of harmonic eliminator:

Reactance eliminator: Through series reactance components to improve the resonant frequency of the circuit, to achieve resonance frequency and power frequency separation, so as to eliminate harmonics.

Capacitive damper: A resonant circuit is formed by shunt capacitive elements to separate the resonant frequency from the power frequency, thus eliminating harmonics.

Automatic reactive power compensation type harmonic eliminator: not only can eliminate harmonics, but also can adjust the reactive power of the power grid to improve the power factor of the power grid.

Resonant type eliminator: Using the resonance characteristics of the resonant circuit, by changing the resonant frequency of the circuit, the harmonic current is eliminated.

Yaskawa servo drive has the advantages of small size, fast speed, simple operation, etc., and is widely used in industrial automation, robot, machinery manufacturing and other fields.

Its control mode has experienced the following four generations:

SGDF-A2CS single, low cost, mechanical characteristics of the hardness is also good, can meet the general transmission smooth speed requirements, has been widely used in various fields of the industry.

Vector control (VC) control mode. It is characterized by accurate speed control, wide speed range, fast dynamic response and strong anti-overload ability.

SGDF-A2CS Direct Torque Control (DTC) control mode. It is characterized by simple control, intuitive, easy to implement, and theoretically has the same dynamic performance limit as DC motor.

Matrix transform control mode

Servo amplifier is a controller used to control the servo motor, its role is similar to the frequency converter acting on the ordinary AC motor, is a part of the servo system, mainly used in high-precision positioning system. Generally, the servo motor is controlled through three ways of position, speed and torque to achieve high-precision transmission system positioning, which is a high-end product of transmission technology.

The SGDF-A2CS servo amplifier has the capability of liquid resistance, but it cannot be completely liquid resistance and corrosion resistance, so it is necessary to take good protection measures for the motor.