ECEF_Model

ECEF Model

The ECEF model enables you to create an ECE model from Maxwell Eddy Current solutions.

The ECEF model is used to set up a frequency sweep. To change the name of the model placed on the sheet, click the symbol on the sheet, and change the name of the component in the property window (Value field in the DeviceName line, with the Parameter Values tab selected).

The ECEF_Model contains the following parameters:

DeviceName –the name of the device model with default name ECEF_Model1.
FreqSweeps – specifies the frequency sweep list. The format is: "v1, v2, (dv1, n1), v3, …", where v1, v2, v3 specify individual sweeping values, and (dv1, n1) specify a sweep range with dv1 being the increment, and n1 the number of increments. For example, a list of "50Hz, (10Hz, 5)" is equivalent to "50 Hz, 60 Hz, 70 Hz, 80 Hz, 90 Hz, 100 Hz".

An ECEF_Model cannot be used individually. It should be used combined with an ECEIM_Model for induction motors.

At Maxwell run time, the circuit simulator assigns current, slip, as well as frequency if ECEF_Model is added, to Maxwell Eddy Current solver until all sweeps are finished. An ECE model is created automatically. You can import this ECE model in Twin Builder via the Twin Builder > SubCircuit > Maxwell Component > Add Equivalent Circuit menu command. For more information on coupling Maxwell designs to Twin Builder components, refer to the Maxwell Equivalent Circuit Component topic in the Twin Builder Help.

Note: You can add an ECEF_Model to an existing external circuit without deleting the original circuit. In such cases, the original circuit is ignored and can be kept for future use. If you want to recover the original circuit for a simulation, instead of ECE model creation, you just need to deactivate each ECE related model by right-clicking the model and selecting Deactivate in the short-cut menu.

For more information on coupling Maxwell designs to Twin Builder components, refer to the Coupling Maxwell to a Twin Builder Component topic in the Maxwell Help.