Simulation Developement Of Step Down DC Converter Based On Multicell Topology Using PSIM 9

Ahmad Ridhan, Ramli (2012) Simulation Developement Of Step Down DC Converter Based On Multicell Topology Using PSIM 9. Project Report. UTeM, Melaka, Malaysia. (Submitted)

	PDF (24 Pages) Simulation_Developement_Of_Step_Down_Dc_Converter_Based_On_Multicell_Topology_Using_Psim_9_-_24_Pages.pdf - Submitted Version Download (215kB)
	PDF (Full Text) Simulation_Developement_Of_Step_Down_Dc_Converter_Based_On_Multicell_Topology_Using_Psim_9.pdf - Submitted Version Restricted to Registered users only Download (1MB)

Abstract

Nowadays power electronics plays a very important role in many sectors including in industrial, office and household applications. Implementation of power electronics, include the use of static converters in very broad functions such as power supply, control of electric machines and others. But in some applications are only available resources with a high voltage rating that required a converter to switch the appropriate rating to supply the load, but the problem is because the semiconductor components with suitable voltage capability are not available. On the other hand, the need to increase the voltage level of electrical energy conversion system and the difficulties to increasing the voltage capability of semiconductor components, triggering the efforts to create new structures of static converters, one of the new structure is multicell converters. This new structure not allows conversion of high voltage electrical energy especially all problem related to the harmonics ripple. Electrical converters plays a very important of many engineering including transportation, of example in the electric railway transportation system is required the supply of a DC voltage with rating of 500 Volts, but the available DC voltage source is commonly in the level of 1500 Volt. This study will analyze the DC-DC converter of multicell topology and its modeling, and then proposed a voltage decreasing DC converter that can be applied as power supply of electrical train. By this method the converter can be operated on high enough voltage by using the standard semiconductors components only. One of the processes used to decrease the applied voltage is a direct reduction using a single DC chopper, but this way is very risky because if there is a damage of semiconductor component in the converter will experience a high voltage directly from the source to the load. Another way is to use the SRPS (series resonance power supply) but this way has a lot of stage that is not practical.

Actions (login required)

View Item