engleski

MTPA Control Strategy for Interior Permanent Magnet Synchronous Machines Derived Using Current Dependent Flux Linkage Functions

The paper describes a method for calculation of maximum torque per ampere curves for interior permanent magnet synchronous machines which takes into consideration magnetic saturation and its variation with operating point as well as cross- saturation effect. The method uses current depended flux linkage functions and Lagrange multiplier theory for obtaining maximum torque for an arbitrary operating point. The proposed method has been implemented on a model of 48 slot/8 pole interior permanent magnet synchronous machine. Flux linkage functions have been calculated using finite element method and then used for calculation of d and q axis current pairs for every combination of torque and angular speed.

maximum torque per ampere, interior permanent magnet synchronous machines, current dependent flux linkage functions, Lagrange multipliers, reference governor

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