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For a grid-tied three-level neural-point-clamped (NPC) inverter, fully digital hysteresis controller with simple variable hysteresis band is insufficient to stabilize switching frequency (fs). The challenge mainly comes from the restriction of analogue-to-digital converter (ADC) sampling frequency, which leads to inaccurate current-boundary-touching capture. As a result, $f_{s}$ jitter appears. This...
With the rapid development of renewable energy systems and Microgrid, more and more DC grids of different voltage level need to be connected by the high voltage and high power DC-DC converter. The traditional topology of high voltage and high power DC-DC converter was Phase Shifted Full Bridge cascaded Modules (PSFBM). Due to the inefficiency and difficulty on manufacturing high frequency transformer...
As the development of in-car electronics and automatic parts, the capacity of current 14 V voltage system no longer meets the demand of onboard devices. An upgrade is imminent. In order to be backward compatible with the existing system (14 V) and not to introduce extensive modification, a dual 14/42 V system is being developed as a compromising solution. Based on this new system, this article proposes...
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