变频器的输出电抗器(Output reactor)与输出滤波器(Output filter)区别

<p style="margin-top: 12px; margin-bottom: 10px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 11px; line-height: inherit; font-family: Arial; font-optical-sizing: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; color: rgb(51, 51, 51); text-wrap: wrap; background-color: rgb(255, 255, 255);"><span style="font-size: 18px; font-family: inherit; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit; font-weight: inherit;">&nbsp; &nbsp;1）Output reactor 输出电抗器，当变频器输出到电机的电缆长度大于产品规定值时，应加输出电抗器来补偿电机长电缆运行时的耦合电容的充放电影响，避免变频器过流。输出电抗器有两种类型，一种输出电抗器是铁芯式电抗器，当变频器的载波频率小于3KHZ 时采用。另一种输出电抗器是铁氧体式，当变频器的载波频率小于6KHZ 时采用。</span></p><blockquote style="margin: 0px 0px 0px 16px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-stretch: inherit; font-size: 11px; line-height: inherit; font-family: Arial; font-optical-sizing: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline; quotes: none; color: rgb(51, 51, 51); text-wrap: wrap; background-color: rgb(255, 255, 255);"><p style="margin-top: 12px; margin-bottom: 10px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; font-optical-sizing: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;"><span style="font-size: 18px;">2）Output dv/dt filter 输出dv/dt 电抗器，输出dv/dt 电抗器是为了限制变频器输出电压的上升率来确保电机的绝缘正常。</span></p><p style="margin-top: 12px; margin-bottom: 10px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; line-height: inherit; font-family: inherit; font-optical-sizing: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; vertical-align: baseline;"><span style="font-size: 18px;"><img src="/upload/article/20231023/1698021790819730.png" title="1698021790819730.png" alt="image.png"/>3）Sinusoidal filters 正弦波滤波器，它使变频器的输出电压和电流近似于正弦波，减少电机谐波畴变系数和电机绝缘压力。<br/>在变频器的输入侧可加以下选件：<br/>1）Input Reactor 进线电抗器，输入电抗器可以抑制谐波电流，提高功率因数以及削弱输入电路中的浪涌电压、电流对变频器的冲击，削弱电源电压不平衡的影响，一般情况下，都必须加进线电抗器。<br/>2）输入EMC 无线电干扰滤波器，EMC 滤波器的作用是为了减少和抑制变频器所产生的电磁干扰。EMC 滤波器有两种，A级和B 级滤波器。EMC A级滤波器用在第二类场合即工业场合，满足EN50011A 级标准。EMC B 级滤波器多用于第一类场合即民用、轻工业场合，满足EN50011 B 级标准。</span></p></blockquote><p><img src="/upload/article/20231023/1698021729793101.png" title="1698021729793101.png" alt="image.png"/></p>