| 摘要 |
<p>A method and apparatus for controlling a regenerative drive (10) having line and load converters (24,30) connected by a DC link (28), the load converter (30) for connection to an AC machine (12), and the line converter (24) for connection to an AC source/sink (26) by means of line reactors (La,Lb,Lc), the drive for causing real power to flow in the line reactors (La,Lb,Lc) to control the DC link voltage at a selected DC voltage and for determining when a commanded line converter voltage exceeds a selected maximum line converter voltage for also causing reactive power to flow in the line reactors (La,Lb,Lc) to reduce the line converter voltage required to control the real power flow. <IMAGE></p> |
