Availability is an important factor to be considered when designing wind turbine generator systems. The quest for increased availability is based on the following five design approaches - design for component reliability, active control for reliability, design for fault tolerance, prognostics...

This paper describes the 750-Vdc, 100-kW, 20-kHz bidirectional isolated dual-active-bridge (DAB) dc-dc converters using four 1.2-kV 400-A SiC-MOSFET dual modules with or without Schottky barrier diodes (SBDs). When no SBD is integrated into each dual module, the conversion efficiency from the dc-inp...

"Sneak Circuit" is defined as the unexpected path or operational status in an electric or electronic circuit due to the limitation or oversight in design by human. The sneak circuit can be triggered to operate under certain conditions, which results in an unwanted or unintended action....

LLC converter has been the simplest topology since long to achieve soft switching and overall the highest performance within small form factor at converter level. This paper discusses the latest advances of LLC converter from the perspective of topology and control. The technology ranges from high c...

In view of the DC fault current isolation deficiency for the conventional half-bridge sub-module (HBSM) based modular multilevel converter (MMC), this paper presents an improved MMC topology. Both quasi reverse blocking submodules (QRBSMs) and current limit modules (CLMs) are employed to improve the...