安川NX100机器人示教器JZRCR-NPP01-1
报价单位:厦门航拓电气有限公司
联系人:戴先生
手机:18006003561(微信同号)
座机:0592-5072089
QQ:565167042
变频器(Variable-frequency Drive,VFD)是应用变频技术与微电子技术,
通过改变电机工作电源频率方式来控制交流电动机的电力控制设备。
变频器主要由整流(交流变直流)、滤波、逆变(直流变交流)、
制动单元、驱动单元、检测单元微处理单元等组成。
变频器靠内部IGBT的开断来调整输出电源的电压和频率,
根据电机的实际需要来提供其所需要的电源电压,进而达到节能、调速的目的,
另外,变频器还有很多的保护功能,如过流、过压、过载保护等等。
随着工业自动化程度的不断提高,变频器也得到了非常广泛的应用。
1:变频器输出为PWM波,含有较多的高次谐波。
变频功率传感器通过对输入的电压、电流信号进行交流采样,
再将采样值通过电缆、光纤等传输系统与数字量输入变频功率分析仪,
数字量输入变频功率分析仪对电压、电流的采样值进行运算,
可以获取电压有效值、电流有效值、基波电压、基波电流、谐波电压、
谐波电流、有功功率、基波功率、谐波功率等参数。
2:就国内变频器市场格局而言,业内人士将其概括为,
变频器通用领域内资企业占据80%以上的市场份额,竞争激烈导致10年价格大幅下滑;
高性能市场仍以外资品牌为主,未来将成为国内变频器企业的主攻方向。
是国内智能化电气研发、生产和销售的为一体的高新技术企业。
生产变频调速器、电机软起动器等工业自动化控制的厂家,产品采用重载型设计,
过载能力强,具有.大起动和运行容量、完善的自动检测、保护和控制性能,
可以起动和控制任何类型的重型负载电动机,
产品已广泛应用于冶金、矿山、造纸、化工、建材、机械、电力、以及建筑系统等所有工业传动领域
3:中国变频器的市场保持着12-15%的增长率,
预计至少在未来5年内将会保持10%以上的增长率。
中国市场上变频器安装容量(功率)的增长率实际上在20%左右,
预计至少在10年以后,变频器市场才能饱和并逐渐成熟。
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