Description
直流调速器原理都是控制马达做功，顾名思义，直流调速器能控制的，当然就是直流马达了。大功率直流马达制造复杂，价格昂贵，数字直流调速器的特点是体积小，输出功率大，技术难点是控制电路复杂且要求极高的响应速度。举个例子：660v交流变频器要做到1500kw以上的功率，硬件成本不说，光机箱大小就得好几个十个立方了吧，直流调速器输出同样功率的块头，两个立方米足够了。直流调速器在钢铁、橡塑、能源、化工等大功率，低速高扭应用的场合，一直有着和变频同样重要的地位。
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