● 工业负载场所，针对整流器、变频器电弧炉、大型UPS、中频炉、焊接设备等工业型大容量非线性负载。
● 商业建筑场合，例如大量使用荧光灯、电脑、UPS、电梯、复印机、变频空调等非线性负载。
● 特殊行业场所，易受高次谐波干扰而无法正常运行的高精密设备使用场合，如EIB、CT机等。

应用场合   Application

● Industrial load places, for industrial large-capacity non-linear loads such as rectifiers, inverter arc
furnaces, large UPS, medium frequency furnaces, and welding equipment.
● Commercial buildings, such as the use of fluorescent lamps, computers, UPS, elevators, copiers,
inverter air conditioners and other non-linear loads.
● For special industrial sites, high-precision equipment that is not subject to high-order harmonic
interference and cannot operate normally, such as EIB and CT machines.

性能特点   Performance Characteristics

● 滤除的谐波次数范围广，可滤除2~50次谐波；
● 谐波滤除率高，在额定功率下，谐波电流滤除率可高达98％；
● 响应速度快，谐波补偿电流全响应时间小于10ms；
● 可单相动态注入补偿电流，改善系统三相不平衡，自动抑制系统谐振，无与系统产生谐振之忧，保障设备及系统安全运行；
● 从25A模块到150A模块，单台装置可以达到600A；
● 兼具滤波及无功补偿（感性或容性）功能；
● 功能完善的智能操控系统；采用新型的智能操控单元，界面友好，操作简单方便；可同时显示电压、电流、负载谐波和设备输出谐波等波形、幅值及频谱等各类参数；实时故障记录和事件记录；
● 设计选型简单，安装、操作和维护简单。易于扩展和冗余设计可多台并联运行；
● 可设定或大100％限流输出。保证装置长期稳定运行，无设备过载之优。具系统过压、欠压保护；输出过流、过热保护：控制电压系统故障保护等。

工作原理

 Working Principle

STDG100系列有源电力滤波模块及装置（APF）

STDG100 Series Active Power Filter Module and Device (APF)

随着大量非线性电力设备的应用，会在电力系统中产生较大的谐波污染，这种非线性负载就是谐波源，而谐波源中大部分谐波次数和谐波含量，都随着负载或系统的变化而改变，传统的无源滤波技术已难以满足动态变化的滤波要求。STDG系列有源电力滤波器是最有效的滤波方法，该装置采用当今的科研成果，基于高速的滤波补偿技术，消除各种形式的谐波，可应用于各种在谐波污染的工况，尤其适用于快速变化的负载。具有响应速度快、滤波范围广、补偿效果好、不受系统参数影响等特点，达到改善用电质量，降低电网损耗、提高供电利用效率和带载能力的目的，是较理想的滤波产品。

With the application of a large number of nonlinear power equipment, large harmonic pollution will occur in the power system. This nonlinear load is the harmonic source, and most of the harmonics and harmonic content in the harmonic source are With the change of load or system, the traditional passive filtering technology has been difficult to meet the dynamic filtering requirements. STDG series active power filter is the most effective filtering method. The device adopts advanced scientific research results, based on high-speed filter compensation technology, eliminates various forms of harmonics, and can be applied to various harmonic pollution conditions. Especially suitable for fast changing loads. It has the characteristics of fast response, wide filtering range, good compensation effect and no influence on system parameters. It is the ideal filtering product to improve power quality, reduce power grid loss, improve power utilization efficiency and load capacity.

有源电力滤波器与谐波源并联，通过实时检测跟踪谐波源负载产生的谐波电流，快速生成与之大小相等方向相反的电流加以抵消，从而消除谐波，避免系统电压、电流波形发生畸变。装置具有自适应功能，可对频率和大小都变化的谐波进行补偿，完全能够响应负载的快速变化要求。

The active power filter is connected in parallel with the harmonic source to detect the harmonic current generated by the harmonic source load in real time, and quickly generate a current with the opposite direction to cancel the harmonics, thereby eliminating harmonics and avoiding system voltage and current waveforms. distortion. The device has an adaptive function that compensates for harmonics that vary in frequency and size, and is fully capable of responding to rapid changes in load.

主要应用   Application

● Wide range of harmonics filtered out, filtering out 2-50 harmonics;
● The harmonic filtering rate is high. Under the rated power, the harmonic current filtering rate can be as high as 98%;
● The response speed is fast, and the total response time of the harmonic compensation current is less than 10ms;
● Single-phase dynamic injection of compensation current, improve system three-phase unbalance, automatically suppress system resonance, no resonance with the system, and ensure safe operation of equipment and systems;
● From 25A module to 150A module, a single device can reach 600A;
● Both filtering and reactive compensation (inductive or capacitive) functions;
● Advanced intelligent control system with advanced functions; adopts the latest intelligent control unit, friendly interface, simple and convenient operation; can display voltage, current, load harmonics and equipment at the same time; output harmonic waveforms, amplitude and spectrum Parameters; real-time fault records and event records;
● Simple design selection, easy installation, operation and maintenance. Easy to expand and redundant design can run in multiple units in parallel;
● Can be set to the maximum 100% current limit output. Ensure long-term stable operation of the device, no equipment overload. With system overvoltage, undervoltage protection; output overcurrent, overheat protection: control voltage system fault protection.