ST STM32F103ZE User Manual

1.4 kW digital power factor corrector based on the STM32F103ZE
Introduction
This system has been designed to evaluate the capabilities of the high-density
STM32F103ZE microcontroller to perform a digital power factor corrector. An application
example is provided for easy evaluation of the system's features and performance. The
system is intended for demonstration purposes to evaluate the potentiality of the STM32 to
control a high power PFC with performances comparable to a standard continuous mode
PFC monolithic IC, while assigning enough micro resources (such as program memory and
CPU computational capabilities) to other complex operations (such as driving 3ph motors in
scalar or field-oriented control). The system described in this document has been designed
to offer high performances in terms of PF, THD and DC output voltage ripple. According to
less demanding performances, power components (such as the inductor) present in the
PFC power board can be downsized to obtain a cost-effective solution. As opposed to
monolithic ICs, this digital approach enables a sophisticated control algorithm to be applied
and system parameters to be adjusted to meet customer requirements. The STM32 digital
PFC hardware system is composed of two boards: a PFC power stage (STEVAL-ISF002V1)
and a dual motor control stage (STEVAL-IHM022V1) based on the STM32F103ZE
microcontroller. Thanks to an MC connector on the PFC power board, this latter can be
interfaced to several ST MCU-based boards, especially those developed for motor control.
On-board OFF-line SMPS based on a VIPER12 is used to generate the 15 VDC voltages
necessary to supply the drivers inside the power board. Additionally, this board provides 5
volts for supplying any control stage supplied via the MC connector.
Note: Read Section 1
■
Main system features
– Maximum output power: 1400 W
– Input voltage range: 185 - 230Vac, 50/60 Hz
– Output voltage: 415VDC, 5% ripple
– PF up to 0.998 (at nominal rated power)
– THD between 0.9% and 9% over entire operating range
– Hardware overcurrent protection
– Software current limitation
– Software overvoltage protection
– Software voltage limitation
– Regulated DC output voltage with zero load
– Adjustable target value of output DC voltage
– Embedded UI for adjusting real-time PIs parameters for voltage and current
– Available demo for dual FOC motor control drive
April 2010
www.BDTIC.com/ST
prior to using the system.
Doc ID 16854 Rev 1
UM0877
User manual
1/62
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