Electromagnetic Coil Simulation Using Flux-Linkage Lookup Tables
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Solution Overview
Problem
Conventional methods for simulating the dynamic behavior of electromagnetic components with coils require repetitive calculations to solve nonlinear voltage equations, which is inefficient.
Innovation Solution
A computer program and simulation method that create a look-up table associating flux linkage, inductance, and current from magnetic field analysis, allowing simulation by referencing previous steps' currents to avoid repetitive calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If repetitive calculations are performed to solve nonlinear voltage equations, then accurate simulation results are obtained, but simulation efficiency deteriorates
Solution Approach 1:
The patent pre-calculates and stores flux linkage values in a lookup table before the main simulation process. By performing the complex magnetic field analysis in advance and organizing results into a searchable format, the system eliminates the need for repetitive nonlinear equation solving during time-step simulations, thereby maintaining accuracy while dramatically improving efficiency
Solution Approach 2:
The patent creates a lookup table that copies and stores pre-computed flux linkage data from magnetic field analysis. Instead of recalculating the same complex electromagnetic relationships repeatedly, the system references this copied data structure, replacing computationally intensive repetitive calculations with efficient table lookups that preserve simulation accuracy
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables efficient simulation of dynamic behavior by solving nonlinear voltage equations without repetitive calculations, achieving accurate results similar to strict solutions from magnetic field analysis.
Implementation Method 1
creating a look-up table storing a flux linkage of the coil, an inductance of the coil and a current in the coil that are obtained by a magnetic field analysis based on the analytic model
Data Source
AI summary
A computer program causes a computer to execute processing of simulating behavior of an electromagnetic component including a coil at each of a plurality of time points based on an analytic model of the electromagnetic component. The processing comprises creating a look-up table storing a flux linkage of the coil, an inductance of the coil and a current in the coil that are obtained by a magnetic field analysis based on the analytic model in association with one another, and simulating behavior of the electromagnetic component by referring to the look-up table using currents in the coil calculated at a previous simulation step and at a step before the previous simulation step.