臺灣博碩士論文加值系統

泛用型磁場導向控制器能在任意的參考座標系實現磁場導向控制。因其
具有一般性，所以泛用型磁場導向控制器與任何現有的磁場導向控制相容
，包括轉子、定子和氣隙磁場導向。論文中比較了這三種磁場導向的轉矩
穩定工作區。然而，準確的馬達參數估測是所有磁場導向控制的先決條件
，如果估測的參數與實際馬達參數不同時就會發生失解耦的現象並使得驅
動器的性能變差。本論文中分析了在任意參考座標系中，泛用型磁場導向
控器失解耦時磁場和轉矩的情形。同時，提出了感應馬達參數量測和系統
性地設計電流控制器和速度控制器的方法。 經由模擬的結果可以了
解當利用泛用型磁場導向控制器實現轉子、定子和氣隙磁場導向時的響應
。此外，為了分析不同控制變數(電流或電壓)對磁場導向的影響，所以針
對採用不同控制變數的轉子磁場導向響應加以比較。

The principle of the Universal Field Oriented (UFO) control
scheme can operate in any arbitrary reference frame. Due to
its high degree of generality, the UFO controller is
compatible with all the existing field oriented
controller: rotor, stator and airgap flux field
oriented controller. In this thesis, the stability regions of
these three types of controllers are compared.

However, correct estimation of the machine parameter is
essential for all field oriented control scheme. If the
estimated parameters is differ from the machine
parameters, the detuning occurs and the drive performance
become poor. In this
thesis, generalized steady state torque and flux expression
are derived analytically for dutuned operation of UFO controller
in an arbitrary reference frame. Also, the parameter
estimation of induction motor and systematic mathematical
formulation is presented for designing motor controller.

Simulation results are carried out to show that the performance
of the UFO system, i.e., combined rotor, stator and airgap
flux orientation. Also, rotor flux orientation with
different controlled variable(current or voltage) are
simulated and compared.