发明公开
- 专利标题： VERFAHREN ZUM ANSTEUERN EINES OPTIMALEN BETRIEBSPUNKTES BEI EINER SYNCHRONMASCHINE UND EINE UMRICHTERGESPEISTE SYNCHRONMASCHINE
- 专利标题（英）： Method for controlling an optimal operating point in a synchronous machine and inverter-fed synchronous machine
- 专利标题（中）： 用于控制所述的同步电机甲最佳临界点和A转换器馈同步电机
-
申请号： EP11712478.4申请日： 2011-03-29
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公开(公告)号： EP2553802A2公开(公告)日： 2013-02-06
- 发明人: REINHARDT, Volkmar , WULF, Jens, Wilhelm , LEWANDOWSKI, Marek , HAUCK, Matthias , EPSKAMP, Torsten , DOPPELBAUER, Martin , HARTMANN, Matthias
- 申请人： Sew-Eurodrive GmbH & Co. KG
- 申请人地址： Ernst-Blickle-Str. 42 76646 Bruchsal DE
- 专利权人： Sew-Eurodrive GmbH & Co. KG
- 当前专利权人： Sew-Eurodrive GmbH & Co. KG
- 当前专利权人地址： Ernst-Blickle-Str. 42 76646 Bruchsal DE
- 优先权： DE102011009935 20110131; DE102010013463 20100330
- 国际公布： WO2011124346 20111013
- 主分类号： H02P21/00
- IPC分类号： H02P21/00 ; G01R31/34 ; G06F17/50 ; H02P21/14 ; H02P25/02
摘要：
The invention relates to a method for controlling an optimal operating point in a synchronous machine and to an inverter-fed synchronous machine, wherein in a first method step according to the invention for the synchronous machine by means of a FEM method or by means of a measurement method a functional dependency of the voltage components U
d , U
q , U
E upon the current components l
d , l
q , l
E is determined, and from this according to formula (I) the respective dependency of the flux linkage components Ψ
d , Ψ
q , Ψ
Ε upon the current components l
d , l
q , I
E is determined, wherein R
1 and R
2 are the ohmic resistances of the corresponding windings of the synchronous machine. In a second method step according to the invention the synchronous machine is operated in regulated operation and an optimal operating point is controlled, (1) wherein a desired value of the exciting current is ascertained by solving the non-linear optimisation problem, formula (II), (2) wherein the ascertained desired value of the exciting current is used as desired value for an exciting current regulator, (3) wherein an actual value of the exciting current is ascertained by measurement or modelling, (4) wherein desired values of the stator current are ascertained using the ascertained actual value of the exciting current by solving the non-linear optimisation problem, formula (III), (5) wherein the desired values of the stator current are supplied to the stator current regulators.
d , U
q , U
E upon the current components l
d , l
q , l
E is determined, and from this according to formula (I) the respective dependency of the flux linkage components Ψ
d , Ψ
q , Ψ
Ε upon the current components l
d , l
q , I
E is determined, wherein R
1 and R
2 are the ohmic resistances of the corresponding windings of the synchronous machine. In a second method step according to the invention the synchronous machine is operated in regulated operation and an optimal operating point is controlled, (1) wherein a desired value of the exciting current is ascertained by solving the non-linear optimisation problem, formula (II), (2) wherein the ascertained desired value of the exciting current is used as desired value for an exciting current regulator, (3) wherein an actual value of the exciting current is ascertained by measurement or modelling, (4) wherein desired values of the stator current are ascertained using the ascertained actual value of the exciting current by solving the non-linear optimisation problem, formula (III), (5) wherein the desired values of the stator current are supplied to the stator current regulators.
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