ETAS ES5340.2, Руководство пользователя

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ES5340.2 Electric Drive Simulation Board - User’s Guide 55
ETAS FPGA Models
4.1.2 PMSM – Parameters, Inputs and Outputs
This section provides the description of all parameters, inputs and outputs of the
"PMSM" part of the model.
Properties of the PMSM Model
The PMSM model has the following properties:
• Simulation of phase currents I_Phase_X (X = U, V, W) and I_d, I_q
• Simulation of counter emf
• Consideration of cogging torque when simulating the torque of the elec-
trical motor
• Output of status signal (U_phase_U > U_phase_V) for the matching of
position sensors
• Simulation of ohmic losses
• Setting of simulation start values for I_d and I_q
• R_d, R_q, L_d, L_q and magnetic flux can be changed in real-time
Parameters
The parameters of the electric motor model are configured in LABCAR-RTC in
the "Globals" tab of the item for the FPGA model.
Tab. 4-4 Parameters of the PMSM model
Parameter [unit] Description Default value
Pole Pairs [] Number of pole pairs of the electric
motor 12
Ncog [] Number of cogging positions 18
T_cm [Nm] Maximum amount of cogging torque 0.0
Id Init [A] Initial value of I_d
(see Tab. 4-6 on page 56) 0.0
Iq Init [A] Initial value of I_q
(see Tab. 4-6 on page 56) 0.0
a_M [
1
/K] Temperature coefficient of R_d and
R_q 0.00430