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Different topologies of multilevel inverters can be observed, and one of them is T-type topology. It has a very simple structure combined of two-level inverter and of three-level neutral point clamped inverter. This paper deals with the level shifted modulation carrier pulse width modulation. Simulation results verify the theoretical analysis and the effectiveness of the mentioned methods.
This paper is related to autonomous wind power system with typical power demand of 2 to 5kW. Presented power system is designed for private houses or small farms. In the case of low wind speed the energy is provided by energy storage, in mentioned system for this purpose the hydrogen fuel cell was chosen. The main purpose of this paper is to find optimal solutions for creation and control of DC/AC...
The current control is becoming a challenging task for switched mode power supplies, while current sensorless control solutions can avoid the instantaneous current measurements that has been applied for mostly used power factor correction topologies. However, multilevel type of converters haven't been considered to use with current sensorless control (CSC). Hereby, the CSC is applied to three level...
In order to use hydrogen fuel cells in domestic applications either as main power supply or backup source, their low DC output voltage has to be matched to the level and frequency of the utility grid AC voltage. Such power converter systems usually consist of a DC-DC converter and a DC-AC inverter. A double inductor step-up push-pull converter is investigated in this paper, presenting simulation and...
In order to use hydrogen fuel cells in domestic applications either as main power supply or backup source, their low DC output voltage has to be matched to the level and frequency of the utility grid AC voltage. Such power converter systems usually consist of a DC-DC converter and a DC-AC inverter. A double inductor step-up push-pull converter is investigated in this paper, presenting simulation and...
Recent concepts of modular multilevel converters (M2LC) require voltage balancing of capacitors and an on-line voltage monitoring circuit connected to Field-Programmable Gate Array (FPGA) board is represented by this article. Recitation of paper includes a schematic of the circuit with characteristics of it and algorithm of program for FPGA board.
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