modelLM_cooling
Model of a linear motor with cooling
Parameters
| Type | Name | Default | Description |
|---|
| SI.HeatFlowRate | Q_el_N | 3*I_n^2*(1 + 100*0.0039)*R_ph_20 | Electrical heat at M = M_0_100 |
| SI.ThermalResistance | R_therm | -1/(Q_N*fluidProp.rho*fluidProp.c_p*log(1 - Q_el_N/(Q_N*fluidProp.rho*fluidProp.c_p*T_ref_100))) | Thermal resistance |
| Engineering data |
| SI.Force | F_N | | Rated force |
| SI.Current | I_n | | Rated current |
| SI.Mass | m | | Mass of primary motor part |
| Limiting data |
| SI.Force | F_max | | Maximum torque |
| SI.Current | I_max | | Maximum current |
| SI.Voltage | U_eff_max | 380 | Voltage limit of motor module |
| SI.Temperature | T_max | 393.15 | Permissible temperature |
| Physical constants |
| SI.ElectricalForceConstant | k_F_0_20 | | Rated force constant at 20degC |
| SI.Resistance | R_ph_20 | | Winding resistance at 20degC |
| SI.Inductance | L_D | | Rotating field inductance |
| SI.Time | T_th | | Thermal time constant |
| SI.Length | tau_p | | Pole width |
| Start conditions |
| SI.Temperature | T_start | 393.15 | Start temperature |
| Cooling system |
| Cooling.Units.FlowResistanceL | R_flow | Delta_p_N/Q_N^1.75 | Resistance to flow of pipe |
| SI.VolumeFlowRate | Q_N | | Nominal volume flow |
| SI.Pressure | Delta_p_N | | Nominal pressure loss |
| Safety factors |
| Real | S_F | 1 | Safety factor (>=1) for torque (S_n * M <= M_max) |
| Real | S_U | 1 | Safety factor (>=1) for voltage (S_n * v <= v_max) |
| Real | S_T | 1 | Safety factor (>=1) for temperature (S_T * T <= T_max) |
Contents
| Name | Description |
|---|
| FluidProp | constants of fluid models |
