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This paper presents a new current source converter topology that is mainly intended for photovoltaic (PV) applications. The proposed system composed of a PV generator, an impedance adapter, DC-DC converter, a storage battery, multilevel current source Inverter CSI and a vector controlled induction machine. Our objectives here are focused on modeling, control, and steady-state and transient performances...
In this paper, a multilevel current source inverter (CSI) fed induction motor drive with multilevel PWM control strategy is proposed for high-power applications. The multilevel CSI is configured with two classical CSI connected in parallel. This inverter with proposed PWM control strategy is firstly used for feeding constant RL. This strategy used for multilevel CSI permit to have lower THD of load...
The new three-phase 5-level current-source inverter (CSI) proposed in this paper was developed by connecting two classical current — source inverters (CSIs) in cascade. This structure lend an output current harmonics minimization and without the use of high-frequency modulation. The output current waveform of the five-level CSI is composed of intermediary current levels, which are typically obtained...
The three phase five-level Neutral Point Clamped (NPC) source voltage inverter (VSI) is a good topology for high voltage and high power applications where no semiconductor devices are available. However, it has an inherent problem of the midpoint (neutral point) balance. As consequence, the four capacitor voltages of the input DC voltage source of this converter are not equal, leading an output voltage...
One of the most important drawbacks of the three phase five-level NPC (Neutral Point Clamped) source voltage inverters(VSI) is the Neutral Point balance. As consequence, the capacitor voltages of the input DC voltage of the VSI are not equal. There are different ways to cope with this problem. In this paper, a simple solution that solves this balance is given. It is based on using of four three phase...
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