Process for correcting the reference flux of a...

Details Process for correcting the reference flux of a... Process for correcting the reference flux of a...

Category

H - Electricity

Subcategory

02

Subsubcategory

P

IPC codes

H02P 7/292 (2006.01) H02P 21/06 (2006.01)

Type

Patent

Patent number

CA 2066697

Description

13 Abstract The invention relates to a process for correcting a pre- controlled reference flux (?w) for a field-oriented control containing a reference voltage model (16) of a converter-powered multi-phase machine (4) with a speed detection device, and to a circuit for implementing the process. According to the invention, a comparison between a reference voltage (¦Uw¦) used as a setting for the converter (24) and a predetermined maximum converter output voltage (Uwmax) provides a voltage control difference (Ue) from which, by means of a flux correction controller (48), a flux control value (?x) is generated, which reduces the pre-controlled reference flux (?w) until the reference voltage (¦Uw¦) for the converter (24) is lower than or equal to the predetermined maximum converter output voltage (Uwmax). Thereby the field-oriented regulation never leaves the field-oriented range. Figure 3 DC1-30457

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