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| UM-YROTATE-IT-RX62T Datasheet, PDF (26/54 Pages) Renesas Technology Corp – Low Cost Motor Control Kit based on RX62T | |||
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RX62T
YROTATE-IT-RX62T Motor Control Kit
Control interrupt
Phase currents (iumea, ivmea) reading
Transformations (using the phase angle Ï):
(iumea, ivmea) â (iamea, ibmea) â (idmea, iqmea)
Read DC Link voltage vbus
Phase angle update: Ï = Ïnew
Current PI controls use (idref, iqref), (idmea,iqmea) to produce (vdout, vqout)
Transformations (using the phase angle Ï):
(vdout, vqout) â (vaout, vbout) â (vuout, vvout)
PWM output commands generation (using vuout, vvout)
vbus is used to calculate maximum phase voltage (used in current PI controls)
Phase estimation based on old_vaout, old_vbout, iamea, ibmea,
produces new estimated phase angle Ïest
Voltage memories update: old_vaout = vaout, old_vbout = vbout
Speed estimation produces Ïest
Estimation errors detection (if errors an alarm is produced)
YES
Start-up in progress?
NO
Start-up procedure produces idref, iqref, Ïstup
Ïnew = Ïstup
idref = 0
Speed PI control uses (Ïref, Ïest) to obtain iqref
Ïnew = Ïest
Main loop
synchronization
cnt_int > 0 ?
NO
YES
--cnt_int
UM-YROTATE-IT-RX62T Rev.1.00
Jan 15, 2014
Page 26 of 51
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