Performance and Analysis of Z-Source Isolated Bidirectional DC-DC Converter by Using PWM Control Strategy

摘要

In This paper we are presenting an Bidirectional DC-DC converter is also known as dual active bridge (DAB) dc¨Cdc converter. We presented a Z-source with bidirectional dc¨C dc converter by reducing the switching co unt by adding an passive elements we are improving the output voltage level, Comparing with the traditional bidirectional dc¨Cdc converter, the proposed converter has an wider regulation range of voltage. The fully bridge symmetrical circuit configuration, is neither a high-voltage side nor a low-voltage side in the circuit structure, and the sources connected to the dc side of each H-bridge circuit with voltage sources and current sources. This method can reduce current stress and improves the system efficiency. Both simulation results shown by using an MATLAB software