1.产品概述 / Product Overview

  工业级全效电能质量模块ASVG是将APF与SVG功能集于一体，充分利用了APF的谐波滤除功能，同时又利用了SVG的无功补偿功能。ASVG根据CT采集负载电流，通过离散傅里叶变换与帕克变换分别提取谐波、无功、不平衡电流等待补偿分量，通过整流器电路产生与待补偿成分大小相等相位相反的电流，将系统电流补偿为THD、PF、不平衡度都满足指标的质优电流。

  Industrial-grade full-efficiency power quality module ASVG integrates APF and SVG functions into a whole, making full use of APF's harmonic filtering function and SVG's reactive compensation function. ASVG collects the load current through CT, extracts the harmonic current, reactive current and unbalanced current respectively through Discrete Fourier Transformation and Park transformation to wait for compensation components, generates the current equal to the component to be compensated and opposite in phase through the rectifier circuit, and compensates the system current to be high quality current with THD, PF and imbalance meeting indexes.

  2.工作原理 / Operating Principle

  Ø 谐波电流滤除原理

  Ø Principle of harmonic current filtering

  ASVG通过外部系统电流互感器实时采集电流信号，控制器分离出其中的谐波电流部分， IGBT功率变换器产生与系统中的谐波大小相等相位相反的补偿电流，实现滤除系统谐波电流的功能。

  ASVG collects the current signal through the current transformer of the external system in real time, the controller separates the harmonic current, and IGBT power converter generates the compensation current equal to the harmonic in the system and opposite in phase, so as to filter the harmonic current of the system.

  ASVG输出补偿电流根据系统电流的谐波量变化而动态变化。另外，ASVG有限流功能，当系统的需补偿的谐波量大于ASVG容量时，ASVG可以限制在100%额定容量输出，不会发生过载。

  ASVG output compensation current changes dynamically with the harmonic content of the system current. In addition, ASVG has advanced current limiting function. When the harmonic content to be compensated is greater than ASVG capacity, ASVG can be limited to 100% rated capacity output without overload.

  Ø 无功补偿原理

  Ø Principle of reactive compensation

  ASVG通过外部系统电流互感器实时采集电流信号，控制器分离出其中的无功电流部分， IGBT功率变换器产生与系统中的无功电流大小相等相位相反的补偿电流，实现无功补偿的功能。

  ASVG collects the current signal through the current transformer of the external system in real time, the controller separates the reactive current, and IGBT power converter generates the compensation current equal to the reactive current in the system and opposite in phase, so as to realize the function of reactive compensation.

  补偿目标功率因数可以通过用户界面设定，ASVG不会出现过补或者欠补，并且补偿电流平滑，不会对负载和电网产生涌流冲击。

  The compensation target power factor can be set through the user interface. ASVG will not overcompensate or undercompensate, and the compensation current will be smooth, having no inrush current impact on the load and the power grid.

  3.型号说明 / Model Description

  4.工业级ASVG常用选型表/ General selection table for industrial ASVG

   5.技术参数 / Technical Parameters

项目 Item		项目描述 Item Description
电气规格 Electrical Specifications	输入线电压 Input line voltage	380V或690V（-40～+20%） 380V or 690V (-40 ~ +20%)
	相数 Phase number	3相4线；3相3线 3-phase 4-wire; 3-phase 3-wire
	频率 Frequency	50/60±5Hz（可设置） 50/60±5Hz (configurable)
	补偿电流 Compensation current	200/263A (根据机型) 200/263A (according to model)
	并联运行 Parallel operation	不限 Unlimited
	模块功耗 Module power consumption	<2.5kW
	效率 Efficiency	高达92%-98% Up to 92%-98%
	CT变比范围 Range of CT transformation ratio	150:5～6000:5
通信接口 Communication interface	干接点 Dry contact	1个EPO One EPO
	通信 Communication	RS485通讯接口,采用MODBUS远程通讯协议。 RS485 communication interface, using MODBUS remote communication protocol.
环境规格 Environment specifications	使用场所 Application	室内，不受阳光直晒，无尘埃，腐蚀性、可燃性气体，油雾、水蒸汽、滴水或盐份等 Indoor, free from direct sunlight, dust, corrosive, flammable gas, oil mist, water vapor, water drop or salt, etc.
	工作海拔 Altitude	低于1500米，高于1500米时降额使用。 Lower than 1500 meters. Derate if the altitude is higher than 1500 meters.
	存储温度 Storage temperature	-20℃～ +70℃
	工作温度 Operating temperature	-45℃～ +55℃
	湿度 Temperature	小于95％RH，无水珠凝结 Less than 95% RH, no condensation
	振动 Vibration	小于5.9米/秒2（0.6g） Less than 5.9 m/s2 (0.6g)
结构 Structure	防护等级 Level of protection	IP20
	颜色 Color	白色（可定制） White (customizable)
	尺寸 Size	见下节（根据机型） See the following section (according to model)
	冷却方式 Cooling mode	风冷（大功率轴流风机） Air cooling (high-power axial flow fan)