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questions about hvmotorcontrol+pfc2.0

hello everyone,i have some questions about motor control!

1.in HVPM_sensorless.c ,i don't understand speedref=IQ(0.15),does it stand for The reference actual speed(for example 3000 rpm)? what's the relationship between them?

2.the problem of the MAO values, such as speed SPEEDREF = IQ (0.15), how come, how much is the basic value?