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Three-Phase Magnetic Frequency Tripler Analysis

Magnetic Frequency Tripler

A magnetic frequency tripler is a nonlinear magnetic system which is used for the production of triple-frequency output from a three-phase fundamental frequency source based on the nonlinear magnetic saturation characteristics, as shown in Figure 4.12. Although magnetic frequency triplers have been used extensively for certain applications, the design of these devices was, until the early 1990s, largely empirical. Earlier and some recent papers [10-12] have discussed the analyses of magnetic frequency- tripling devices based on an equivalent-circuit approach under various load conditions and the Preisach model.

However, the above methods, based on the equivalent circuit theory, magnetic nonlinear characteristics, hysteresis losses and eddy current losses, and magnetic flux distribution for each harmonic component, cannot be calculated and presented. Therefore, the EM full wave solution can be obtained from HBFEM based numerical computation. HBFEM can provide magnetic flux distribution and eddy current losses at each harmonic.

 
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