UM0324 datasheet(67/105 Pages) STMICROELECTRONICS

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UM0324

Library functions

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Park

Rev_Park

Synopsis

Curr_Components Park (Curr_Components Curr_Input, s16 Theta)

Description

The purpose of this function is to transform stator currents iα and iβ,

which belong to a stationary qd reference frame, to a rotor flux

synchronous reference frame (properly oriented), so as to obtain iqs

and ids.

See Section 4.5.3 for details.

Input

Stator currents iα and iβ (in q1.15 format) as members of the variable

Curr_Input, which is a structure of type Curr_Components; rotor flux

angle

θλr (65536 pulses per revolution).

Returns

Stator currents iqs and ids (in q1.15 format) as members of a

structure of type Curr_Components.

Functions called

mul_q15_q15_q31

Synopsis

Volt_Components Rev_Park (Volt_Components Volt_Input)

Description

This function transforms stator voltage vq and vd, belonging to a

rotor flux synchronous rotating frame, to a stationary reference

frame, so as to obtain vα and vβ.

See Section 4.5.3 for details.

Input

Stator voltages vqs and vds (in q1.15 format) as members of the

variable Volt_Input, which is a structure of type Volt_Components.

Returns

Stator voltages vα and vβ (in q1.15 format) as members of a

structure of type Volt_Components.

Functions called

mul_q15_q15_q31

UM0324 Datasheet(PDF) 67 Page - STMicroelectronics