AN1931D Freescale Semiconductor / Motorola, AN1931D Datasheet - Page 37

• Manufacturer Part Number: AN1931D
• Description: 3-Phase PM Synchronous Motor Vector Control
• Manufacturer: Freescale Semiconductor / Motorola

MOTOROLA
6.2.2 LED Indication Process
6.2.3 Analog Sensing Process
6.2.4 Position and Speed Measurement Process
6.2.5 PMSM (PM Synchronous Motor) Control Process
This process controls the LED flashing according to appState.
The Analog sensing process handles sensing, filtering and correction of analog variables (phase
currents, temperature, DC Bus voltage).
The Position and Speed Measurement process gives mechanical angular speed omega_actual_mech
and electrical position theta_actual_el.
The PMSM (PM Synchronous Motor) Control process provides most of the motor control
functionality.
Figure 6-6
the process: Sine; Cosine Transformations; Current Control; Speed; Alignment Control; and
Field-Weakening.
The Sine and Cosine Transformations generate sinCos_theta_el with the components sine, cosine
according to electrical position theta_actual_el. It is provided in a look-up table.
shows the data flow inside the process PMSM Control. It shows essential subprocesses of
Freescale Semiconductor, Inc.
3-Phase PM Synchronous Motor Vector Control
For More Information On This Product,
Go to: www.freescale.com
Software Design
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