Current Balancing Algorithm for Three-Phase Multilevel Current Source Inverters

A Generalized Modular Multilevel Current Source Inverter

This paper proposes a novel topology of multilevel current source inverter which is suitable to apply in low/medium voltage. The proposed topology is capable of producing desirable bidirectional output current levels. Furthermore, it can employ symmetrical DC current sources as well as asymmetrical ones which is a significant advantage. Asymmetrical mode makes it possible to generate a great nu...

Modular Multilevel Current Source Inverter Using Two-Switch Basic Units

This article is an introduction of a new topology of current source inverter (CSI) which can be alternatively implemented in low/medium power applications. This configuration is organized from series connected sub-multilevel inverters blocks. The basis of the recommended multilevel topology is the connections of many cell units in a decent scheme with the help of H-bridge inverter. The suggeste...

Protection Strategies for IGBT Current Source Inverters

An overview of overcurrent and overvoltage CSI faults is presented and strategies, how to protect a CSI equipped with IGBT power switches against these failures are developed and explained. The shown strategies and the related circuits are applicable at low expense and require only minor changes in the CSI and its control.

Unified Zero-Current-Transition Techniques for High-Power Three-Phase PWM Inverters

A Novel and Simple Current Controller for Three-Phase IGBT PWM Power Inverters

A new feedback current controller for three-phase pulse with modulated power inverters is presented. It is based on a current loop with two non linear three-level hysteresis controllers. The voltage vectors applied to the load are accurately selected in order to minimise the output current error. Controller structure based on simple analog-digital hardware implementation is shown and experiment...