Bridge Less Z Source Network Fed Single Phase Five Level Inverter with Dc-dc Converter Using Soft Switching Techniques

In this project the bridge less Z-source converter is introduced to power factor correction (PFC) applications. The concept is demonstrated through a wireless charging, namely Z-source resonant converter (ZSRC). The ZVS and ZCS operation will reduce the switching losses. Due to the Z-source network (ZSN), the ZSRC inherently performs PFC and regulate the system output voltage simultaneously, without adding extra semiconductor devices and control circuitry to the conventional WPT system such as conventional PFC converters do. In other words, the ZSN can be categorized as a family of the single stage PFC converters. In addition, the ZSN is suitable for high power applications since it is immune to shoot-through states, which increases reliability and adds a boost feature to the system. Simulations, and experimental results based on a prototype are presented to validate the analysis, and demonstrate the effectiveness of the ZSN in the PFC of the WPT system. The single phase five level inverter ill reduce the THD. The hardware is implemented by using DSPIC30F2010 controller. KeywordsTHD, PFC, ZVS, ZCS, ZVRC, ZSN, Z Source network, DSPIC30F2010 controller.