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This paper discusses the dead-time effect of dual bridge series resonant DC/DC converter (DBSRC). The phase-shift modulation is usually adopted in DBSRC. However, the phase-shift angle is usually small, and voltage polarity reversal (VPR) may occur in dead-time, which may deteriorate EMI/EMC and increase loss. This paper analyzes the commutation of DBSRC when VPR occurs and proposes a method to eliminate...
Using EtaOpt the detailed balance efficiency of the classic lattice matched InGaP/GaAs/Ge 3-junction cell and those of optimized band gap combinations for both monolithic and mechanical stacks are calculated under 500×AM1.5D illumination. The results are 48.7% (mono) and 59.2% (mech) for the classic and 59.6% (mono) and 60.3% (mech) for the optimized band gap structures. For these devices we calculated...
This paper analysis the causing reasons of the pressure oscillation of the large tonnage crane hoisting system and the AMESim software was being used to set up the simulation model of the whole system which help to analysis the time domain and frequency domain characteristics. The analysis result indicated that the pressure oscillation performance of the hoisting system relates to flow release of...
This article builds up AMT clutch electrical actuator model by using SimulationX (modeling and simulation software), and focuses on the research of back-EMF coefficient Ke and torque coefficient Kt of DC permanent magnet motor, the two parameters are established through motor performance test data, so that motor model simulation results are basically identical with motor test results. Finally, in...
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