A Comparison of Nodal- and Mesh-Based Magnetic Equivalent Circuit Models

Abstract

Abstract-The magnetic equivalent circuit (MEC) technique is a powerful analysis and design tool that combines relative accuracy with moderate computational effort. In this paper, a nodal-based MEC formulation and a mesh-based MEC formulation of a magnetic system are compared. The Newton-Raphson algorithm is used to solve the algebraic system, and to draw conclusions about the computational efficiency of the two formulations under linear and nonlinear operation. Although the two formulations exhibit similar performance under linear operating conditions, the performance of the mesh-based model is significantly better than that of the nodal-based model under nonlinear operation.

Technology, Research and Applications of Switched Reluctance Drives

“…MEC networks can either be formulated as meshes or nodes, resulting in different matrices to be solved. A comparison is investigated in [38].…”

Optimization of a Novel Magneto-Rheological Device With Permanent Magnets

“…Once the values of the elements of the equivalent magnetic network have been calculated, the Nodal Analysis Method for the electrical network is used to solve the problem [37], [38]. As an example of the set of equations obtained by the model, in the right side of Figure 3 …”

Limitations/capabilities of electric machine technologies and modeling approaches for electric motor design and analysis in plug-in electric vehicle applications

“…Ostovic adapted a computer-based version for IM models in the 1980s and later published a series of papers [47,[133][134][135][136][137]. This method has been used to model the nonlinear magnetic field in EMs for steady-state and dynamic conditions [138][139][140]. The MEC method (permeance or reluctance network) is based on the decomposition of an electromagnetic system into flux tubes.…”