Betriebsverfahren für einen Wechselrichter, der einen Einphasen-Synchronmotor mit permanenterregtem Rotor speist
摘要
The single phase synchronous motor (M) is fed through an inverter (WR) with a controllable output pulse pattern (Um) connected to its input circuit. The output of the inverter is controlled in accordance with a linear curve (i=f(n)) relating the motor current (i) and the motor speed of rotation (n), such that the synchronous motor acts in the manner of a dc shunt motor. At the one end, the maximum current (Isoll) limit of the curve between current and speed is defined by short circuit or starting conditions, or is arranged to be below the threshold value for demagnetising the rotor of the synchronous motor. At the other end, the maximum rotational speed limit of the curve is obtained by the motor idling value. <IMAGE>
申请公布号
DE59402074(D1)
申请公布日期
1997.04.17
申请号
DE1994502074
申请日期
1994.07.06
申请人
SIEMENS AG, 80333 MUENCHEN, DE
发明人
KLEIN, HANS-WILHELM, D-97078 WUERZBURG, DE;SCHMIDT, THOMAS, D-33611 BIELEFELD, DE;STEINMANN, ULRICH, D-32549 BAD OEYNHAUSEN, DE