Winding Loss Calculation with Multiple Windings, Arbitrary Waveforms and Two-Dimensional Field Geometry
نویسندگان
چکیده
منابع مشابه
Computationally Efficient Winding Loss Calculation with Multiple Windings, Arbitrary Waveforms, and Two-Dimensional or Three-Dimensional Field Geometry
The squared-field-derivative method for calculating eddy-current (proximity-effect) losses in round-wire or litz-wire transformer and inductor windings is derived. The method is capable of analyzing losses due to two-dimensional and three-dimensional field effects in multiple windings with arbitrary waveforms in each winding. It uses a simple set of numerical magnetostatic field calculations, w...
متن کاملComputationally Efficient Winding Loss Calculation with Multiple Windings, Arbitrary Waveforms and Two- or Three-Dimensional Field Geometry
The squared-field-derivative method for calculating eddy-current (proximity-effect) losses in round-wire or litz-wire transformer and inductor windings is derived. The method is capable of analyzing losses due to two-dimensional and three-dimensional field effects in multiple windings with arbitrary waveforms in each winding. It uses a simple set of numerical magnetostatic field calculations, w...
متن کاملOptimization of a Flyback Transformer Winding Considering Two-Dimensional Field Effects, Cost and Loss
The largest loss in an example litz-wire flyback transformer is found during current commutation between windings. In order to reduce this loss, a new optimization method is introduced. The new method optimizes strand size and number in litz wire considering cost and loss. Unlike previous methods, it is valid with twoor three-dimensional field geometry and with different non-sinusoidal waveform...
متن کاملمدلسازی حالت گذرای حرارتی در ترانسفورماتور چند سیمپیچه دوطبقه مبتنی بر روش تفاضلات محدود و شبکههای عصبی مصنوعی
Nowadays, multi-winding transformers are widely used in traction systems and steel manufacturer. Multi-winding transformer that is used in these systems has especial geometry (that is usually called as split-winding transformer) and encounters with serious magnetic and thermal difficulties. According to the special geometry of split-winding transformer, studding the transient thermal behavior ...
متن کاملAn Improved Calculation of Proximity-Effect Loss in High-Frequency Windings of Round Conductors
The two best-known methods for calculating highfrequency winding loss in round-wire windings—the Dowell method and the Ferreira method—give significantly different results at high frequency. We apply 2-D finite-element method (FEM) simulations to evaluate the accuracy of each method for predicting proximity-effect losses. We find that both methods can have substantial errors, exceeding 60%. The...
متن کامل