Voltage regulation of permanent magnet generator with extended speed range
AssigneeHamilton Sandstrand Corporation
InventorsGregory I. Rozman, Jacek F. Gieras, Steven J. Moss, Mohammad Shahamat
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Abstract
An electric power system (EPS) may comprise a permanent magnet synchronous generator (PMSG), a high speed rectifier configured to receive a first alternating current (AC) power from the PMSG, and a low speed rectifier configured to receive a second AC power from the PMSG. The low speed rectifier may be configured to receive the first AC power in response to the PMSG rotating at a first rotational speed, and the high speed rectifier may be configured to receive the second AC power in response to the PMSG rotating at a second faster rotational speed.
Claims14
An electric power system (EPS), comprising:
- a permanent magnet synchronous generator (PMSG), comprising:
- a first stator winding;
- a second stator winding;
- a third stator winding;
- and
- a control coil converter configured to control an output voltage of the PMSG;
- a high speed, passive rectifier bridge configured to receive a first alternating current (AC) power from the PMSG;
- and
- a low speed, passive rectifier bridge configured to receive a second AC power from the PMSG;
- wherein the low speed rectifier bridge is configured to receive the first AC power in response to the PMSG rotating at a first rotational speed, and
- the high speed rectifier bridge is configured to receive the second AC power in response to the PMSG rotating at a second rotational speed.
(canceled)
10-16. (canceled)
A method for operating an electric power system (EPS), comprising:
- activating a low speed, passive rectifier bridge in response to a permanent magnet synchronous generator (PMSG) rotating at a first speed;
- activating a high speed, passive rectifier bridge in response to the PMSG rotating at a second speed;
- and
- controlling, by a control coil converter, an output voltage of the PMSG,
- wherein the low speed, passive rectifier bridge receives a first AC power corresponding to a second number of turns of a stator winding of the PMSG;
- and
- wherein the high speed, passive rectifier bridge receives a second AC power corresponding to a first number of turns of the stator winding of the PMSG.
Dependencies are inferred from the claim text.