Overview
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Recently, the growing demand for energy conservation and highly efficient
reactors is raising the importance of reducing the losses from reactors.
Iron loss, which is one of the major losses for reactors, is produced when
energy is released as heat, causing the efficiency to decrease, and the
temperature of the reactor to rise.
Evaluating the percentage and distribution of iron loss through simulation
becomes advantageous when designing a reactor.
The example analyzes the iron loss of a reactor. |
Magnetic Flux Density Distribution/Iron Loss Density Distribution
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The magnetic flux density distribution and iron loss density distribution
of the core are indicated in Fig. 1 and Fig. 2. A large amount of iron
loss is produced by magnetic flux focused on the surface of the core, because
the magnetic flux cannot easily flow in the lamination direction, as indicated
in Fig. 1. A large amount of magnetic flux density and iron loss also occurs
at the top and bottom of the core which is not wrapped with coil, because
the magnetic flux always flows through the shortest path within the magnetic
circuit. |
Joule Loss Density Distribution/Hysteresis Loss Density Distribution
| The Joule loss density distribution and hysteresis loss density distribution
of the core are indicated in Fig. 3, the percentage of losses is indicated
in Fig. 4, and the amount of loss is indicated in Table. 1. The Joule losses
contribute largely to the iron loss in the core as indicated in this figure.
The amount of iron loss may be effectively decreased by reducing the amount
of Joule losses. |
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