Zero-current transition flyback inverter for small scale wind power generation systems

This paper presents a zero-current transition (ZCT) flyback inverter for small scale wind power generation systems. Although the proposed system has such small output power as 500 W, a few sets of wind power generation systems can be easily connected in parallel for the higher output power requirements. When the wind power generation system is constructed by a lot of small power ones, the total system-cost and the efficiency of an inverter will be a matter of concern. To overcome these difficult problems, we propose a speed controller without a wind speed sensor. The speed controller consists of the maximum power point tracking and the two-degree of freedom controller. And we also propose a ZCT flyback inverter and the IGBT is turned off at zero-current switching (ZCS).