Publication

Single-and three phased multilevel converters for traction systems 50Hz/16 2/3 Hz

Alfred Rufer
1997
Conference Papers

Abstract

For high power applications, multilevel topologies provide a number of advantages. In this paper, the single and three-phased multilevel converter is presented. Modulation methods and control schemes have been developed and tested on low-power prototypes. Further development has been made on the key components like the DC/DC converter for the power supplies of each level an on the medium-frequency transformer for the DC/DC converter.

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Alfred Rufer
1997
Conference Papers

Abstract

Official source

Related concepts (32)

Power electronics

Power electronics is the application of electronics to the control and conversion of electric power. The first high-power electronic devices were made using mercury-arc valves. In modern systems, the conversion is performed with semiconductor switching devices such as diodes, thyristors, and power transistors such as the power MOSFET and IGBT. In contrast to electronic systems concerned with the transmission and processing of signals and data, substantial amounts of electrical energy are processed in power electronics.

Power inverter

A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source.

Power supply

A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

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Single-and three phased multilevel converters for traction systems 50Hz/16 2/3 Hz

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