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This paper presents an approach of sparse matrix converter (SMC) using Z-source network. The SMC is implemented by connecting a controllable rectifier and the traditional inverter through a Z-source network. The Z-source can produce any desired output voltage by controlling the shoot-through time. Compare to the traditional three-phase SMC, the three-phase Z-source SMC has the same number of switches,...
A novel competitive fifteen level power converter is presented in this paper. The proposed scheme is characterized by the use of small number of power switches and passive components. It presents a reduced impact on the supply network in terms of harmonics and energetic efficiency. A control strategy based on an average model is performed and a linear control law is designed in order to draw a nearly...
The aim of this paper is to present an overall analysis of a typical permanent magnet synchronous motor drive under different operating conditions. Single power switch open-circuit faults as well as single phase open-circuit faults are introduced in the inverter and their effects are investigated trough a drive global performance evaluation. This includes the study of phase currents and voltages harmonic...
This paper describes a three-phase high power factor rectifier for an electrolytic capacitor-less inverter based on the current injection scheme. The rectifier injects the machine side zero sequence current into the grid side through three bi-directional switches. This paper also introduces the modified circuit topology which is suitable for an electrolytic capacitor-less inverter. A bulky dc or ac...
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