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In this paper, a SVPWM for an indirect matrix converter (IMC) with dual output inverter has been proposed to eliminate the common-mode voltage (CMV). The presented converter is a combination of the conventional rectifier stage and a dual inverter stage for feeding open-end winding load. The principles of selecting suitable active vectors and zero vectors and then properly arranging the switching sequence...
Common-mode voltage (CMV) is responsible for overvoltage stress to the winding insulation and bearing damage of an AC motor. High dv/dt of CMV causes leakage currents, which create noise problems to the equipments installed near the converter. This paper proposes modulation strategy for three-level T-type NPC that substantially eliminates CMV. The principles of selecting suitable triangle carrier...
The efficiency is the important factor for the power converter that is used in photovoltaic application. This paper proposes a new SVPWM method for three - level TNPC topology to improve the efficiency by minimize the number of switching. The proposed method is based on the virtual flux vector. By applying proper non-zero voltage vectors, a quasi circle will be created. The performance of the converter...
This paper proposes the modified SVPWM control algorithm for the three-phase voltage source inverter, which consists of traditional six switches voltage source inverter and three bidirectional switches for creating the ac decoupling circuit. This topology has the advantages such as the ability to reduce the overall power losses in inverter system and beside that, to decrease the leakage ground current...
In PV systems grid-connected, we always have to work with power electronics modules. For safety, any design of power electronics converter should be simulated carefully in order to prevent from serious damages from high voltage, high current which can cause fire, explosion. By using hardware-in-the-loop (HIL) simulation, we could make sure the converter would operate the right way, which is not always...
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