Research On Low Frequency Magnetic Field Test And Equivalent Modeling Method Of Ship Equipment

With the increasing power of ship-borne equipment, the proportion of low-frequency stray magnetic field to ship's magnetic field is increasing, the calculation and simulation method of low-frequency magnetic field has become more and more urgent. In this paper, an equivalent modeling method for typical low-frequency magnetic field sources on ships is proposed. The low-frequency magnetic field distribution of the typical device is obtained by testing, and an equivalent model is then established by the magnetic dipole array. Compared with the test data, the magnetic field calculation data obtained by the equivalent model has a small error, which verifies the accuracy of the equivalent model.