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UM-YROTATE-IT-RX62T Datasheet(PDF) 22 Page - Renesas Technology Corp |
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UM-YROTATE-IT-RX62T Datasheet(HTML) 22 Page - Renesas Technology Corp |
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22 / 54 page  RX62T YROTATE-IT-RX62T Motor Control Kit UM-YROTATE-IT-RX62T Rev.1.00 Page 22 of 51 Jan 15, 2014 11. Sensorless Field Oriented Control Algorithm Please, find below the sensorless FOC algorithm block diagram. The only difference between the three shunts configuration and the single shunt one is in the “Current Reading” block, the rest of the algorithm remains the same. z -1 z -1 z -1 z -1 0 [Idref] Id PI Iq PI Speed PI ω ref Speed estimation Flux Phase estimation PWM Modulation (u, v, w) → ( α, β) ( α, β) → (d, q) (d, q) → ( α, β) ( α, β) → (u, v, w) Motor Current Reading (z -1) z -1 + - + - + - Vd Vq I α αα α mea I ββββ mea Iumea Ivmea Idmea Iqmea ϑ ϑϑ ϑ est ω ω ω ω est Iqref V α αα α V ββββ |
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