Instantaneous power floating frame controller

Details Instantaneous power floating frame controller Instantaneous power floating frame controller

2006-07-11

2006-07-11

Duda, Rina (Department: 2837)

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

C318S700000, C318S721000, C318S363000, C318S254100

Reexamination Certificate

active

07075264

ABSTRACT:
The present invention relates to a method of controlling a power converter (20) of a synchronous machine system (10), the method comprising sampling phase-current values between the power converter (20) and the synchronous machine (30); selecting a reference frame; regulating a current vector to align with the selected reference frame, the selected reference frame having a direct-axis component and a quadrature-axis component; estimating rotor speed and position as a function of instantaneous power; adjusting the selected reference frame, based on estimated rotor position, to synchronize the selected reference frame with a magnetic axis of the rotor, thereby generating a synchronized floating frame; and applying the synchronized floating frame to control the power converter (20). The present invention also related to a power converter controlling apparatus (100) for controlling a power converter (20) of a synchronous machine system (10) without use of a machine position sensor.

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