3-Phase BLDC Motor Sensorless Control Using MC56F8013

TuningTo use the desired set of parameters, in the main software there are two functions defined:– MOTORASettings(), IB23811 motor– MOTORBSettings(), N2311 MotorIn the parameters tables given below, all parameters range and default values are filled according to theapplication setup using the Micro Power Stage Board and MotorA (IB23811 MCG), which is described inChapter 6 Application Setup.7.3 Application Related Parameters7.3.1 Parameters Defined in bldczcdefines.h7.3.1.1 Parameter SummarySome parameters in Group 1 are listed and explained in Table 7-1.Table 7-1. Application Related Parameter SummaryName Description Units Range DefaultFreeMasterLocationUDCBUS_FILT_INDEXFiltering constant of ADCsamples for DC-bus voltage.N/A 0–8 (1)4 N/AIDCBUS_FILT_INDEXNO_INIT_DC_BUS_SAMPLESFiltering constant of ADCsamples for DC-bus current.Number of samples tomeasure and averageDC-bus voltage, after ADCis first initialized.N/A 4–8 (1) 6 N/AN/A 1–64 (1) 16 N/APER_SPEED_SAMPLE_SExecution (sampling) periodof Speed Controller.Seconds0.0002–0.00200.001Control >PI Controllers >Speed ControllerOMEGA_INCREMENT_SYSURAMP_INCREMENT_UPRAMP_INCREMENT_DOWNIncrement/decrement stepof desired speed.Increment step foracceleration ramp of speedsetting.Increment step fordeceleration ramp of speedsetting.Fraction 1–8192 (1) 2048 N/AFraction 1–32767 32 Control > RampFraction 1–32767 32 Control > RampNOTES:1. Higher values are theoretically possible, but are not recommended.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 070 Freescale Semiconductor