Multi-Level Converters

Multi-Level Converters

Design of Multi Threshold (Multi Vth) Level Converters for Block Interfaces

High-performance and low-power are the two main criteria in modern digital design. Level converters are important to transfer low voltage input swing signal among the circuits operating at different voltages to get high voltage output swing signal. Previously feedback level converters suffer from short circuit power and long propagation delay. Multi Vth level converters and multiple supply volt...

Comparison and Analysis of Three-level Converters versus Two-level Converters for Ship Propulsion Applications

In this paper, an overview of the techniques applied to AC electric propulsion field has been done. Actual study cases of electric ship propulsion schemes are considered. An impartial comparison between three-level converters versus two-level converter from the viewpoint of electric ship propulsion requirements has been done. Diodeclamped three-level converters using direct torque control (DTC)...

A Space Vector Modulation Control Algorithm for VSI Multi-Level Converters

In this paper a novel modular digital control algorithm for multi level inverters is introduced and discussed. This algorithm is essentially based on the duty cycle expression and allows a great simplification, because of its modularity and its simple implementation. The algorithm is particularly suitable for the Multi Point Clamped (MPC) inverters with no constraint on the number of the voltag...

Supraharmonics Emission Assessment of Multi-level Converters Applied for Photovoltaic Grid-Connected Inverters

Topologies for different DC-AC converters used on grid-connected photovoltaic (PV) inverters are analysed and compared within this paper. The main focus is to evaluate the supraharmonic emission in the frequency range 2 to 150 kHz. For this study three topologies are evaluated: Neutral Point Clamped (NPC), the Cascaded H-bridge (CHB) and the Flying Capacitor (FC). To approximate the operation c...