A novel analysis method for proportional solenoid magnetic circuit

To improve the efficiency of proportional solenoid analysis, a novel analysis method for complex magnetic circuit of proportional solenoid combining magnetic circuit analysis method with finite element method (FEM) is proposed. The FEM analysis results of proportional solenoid's complex magnetic circuit were fitted with algebraic equations. These equations were applied in simulation software which can directly use algebraic equations. The output characteristics of proportional solenoid were analyzed. With comparing the results of simulation software and FEM analysis software, it was proved that complex magnetic circuit can be quickly and accurately analyzed with this method.