NXP Semiconductors MCUXpresso, Руководство пользователя

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Figure 21. PMSM identification tab
8.7 Initial configuration setting and update
1. Open the PMSM control application FreeMASTER project containing the dedicated MCAT plug-in module.
2. Select the “Parameters” tab.
3. Leave the measured motor parameters or specify the parameters manually. The motor parameters can be obtained from
the motor data sheet or using the PMSM parameters measurement procedure described in
PMSM Electrical Parameters
Measurement
(document AN4680 ). All parameters provided in Table 9 are accessible. The motor inertia J expresses the
overall system inertia and can be obtained using a mechanical measurement. The J parameter is used to calculate the
speed controller constant. However, the manual controller tuning can also be used to calculate this constant.
Table 9. MCAT motor parameters
Parameter Units Description Typical range
pp [-] Motor pole pairs 1-10
Rs [Ω] 1-phase stator resistance 0.3-50
Ld [H] 1-phase direct inductance 0.00001-0.1
Lq [H] 1-phase
quadrature inductance 0.00001-0.1
Ke [V.sec/rad] BEMF constant 0.001-1
J [kg.m
2
] System inertia 0.00001-0.1
Iph nom [A] Motor nominal phase current 0.5-8
Table continues on the next page...
NXP Semiconductors
Remote control using FreeMASTER
MCUXpresso SDK Field-Oriented Control (FOC) of 3-Phase PMSM and BLDC motors, Rev. 0, 01/2022
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