| Abstract |
The paper outlines the performance characteristics of a high power, high power density dc/dc converter based on the single-phase dual active bridge topology proposed in [1]. The dual active bridge converter has very attractive features in terms of low device and component stresses, small filter components, low switching losses (by virtue of zero voltage switching), high power density and high efficiency, bi-directional power flow, buck-boost operation, low sensitivity to system parasitics and simple first-order stable dynamics. The lnfluence of dominant system parasitics on the soft switching region are discussed. Since, the leakage inductance of the transformer is the main energy transfer element, special transformer design techniques [2] have been utilized to carefully control this parameter. Experimental results from a prototype 50 kW, 50 kHz are presented. |
