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A 4-phase wound-field doubly salient generator is researched in this paper. The no-load situation is analyzed ideally and simulated by finite element method. The average inductance of the phase winding, which reaches over 50mH, causes low power factor and decreases the output power. To improve the output power, the capacitors are introduced to compensate the inductive current. For the no-load situation,...
The switched reluctance generation (SRG) mode is widely applied in the doubly salient Electromagnetic machines (DSEMs). A novel half-controlled PWM rectifier (HCPWMR) for DSEM has a promising development prospect in DSEM. With a 12/8-pole DSEM prototype, the finite element method is used in the simulation. The simulation results of HCPWMR are compared with the SRG mode. The working principle of HCPWMR...
We present a finite element model to simulate a combined strained In x Ga 1−x N/GaN heterostructure and an edge misfit dislocation on the basal {0001} slip plane, taking the anisotropic elasticity into account. The introduction of a misfit dislocation partially relaxes the misfit strain. The model directly gives the residual strain, which is the exact strain field stored in the system...
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