Simulation of buck or boost rectifier using Single Phase Matrix Converter with reduced switch count
Single Phase Matrix Converter (SPMC) operating as buck or boost rectifier with reduced switch count is illustrated in this paper. Six switches can be used in the proposed configuration as compared to eight switches in conventional SPMC, by removing two unused switches for buck or boost rectifier operation. Both buck and boost rectifier uses same circuit topology with six switches and R load. The operation of both buck and boost rectifier are observed and variation of output voltage with modulation index is analyzed. To synthesis the output pulse width modulation (PWM) technique is used. Buck and boost rectifier circuits are modeled using MATLAB/Simulink and selected simulation results are shown in this paper.
Bi-directional AC-DC Matrix Converter with Unity Power Factor for Electric Vehicle Chargers
....................................................................................................................... i Acknowledgments ...................................................................................................... ii Nomenclature .............................................................................................................. v List of Figures ............................................................................................................ vi List of Tables ........................................................................................................... viii Chapter 1 General Background and Research Objectives ...................................... 1 1.1 Background ......................................................................................................... 1 1.2 Literature Review ................................................................................................ 3 1.3 Research Scope and Objectives ....................................................................... 12 1.4 Thesis Outline ................................................................................................... 14 Chapter 2 EV Chargers and Power Converters ...................................................... 15 2.
Modelling and Simulation of a DC Chopper Using Single Phase Matrix Converter Topology
Choppers are widely used for traction motor control in electric automobiles and other electric transportation system. In those applications, control of dc motor's speed is required where the supply is dc or an ac voltage that has been rectified. This paper presents work on development of four quadrant DC chopper based on the SPMC topology, an advanced topology that hypothetically could perform many different converter functions. Prior to hardware implementation a computer simulation model was developed using the power system block set (PSB) within the MATLAB/Simulink (MLS) environment, to study the behaviour of the proposed converter. Successful results presented are mainly due to the use of resistive load to reduce complexities. Results from PSB simulation are compared with those obtained from PSpice to ascertain its validity. The output is being synthesized using pulse width modulation (PWM) technique. It is shown that the same SPMC topology could be used as a DC chopper extending the versatility of the topology a desirable feature in the future as increases in costs for skilled manpower could be traded-off with versatile technology