A novel switching loss minimization method for single-phase flying-capacitor multilevel inverter

Park, Dong-Hwan; Ku, Nam-Joon; Kim, Rae-Young

doi:10.1109/ifeec.2015.7361592

Cited by 2 publications

(1 citation statement)

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“…Among these multilevel inverters, the diode-clamping inverter, which is called the neutral-point clamped (NPC) inverter, has been commonly used [4]. However, it is difficult to control real power flow for balancing the neutral-point voltage.…”

Section: Introductionmentioning

confidence: 99%

Imposed Switching Frequency Direct Torque Control of Induction Machine Using Five Level Flying Capacitors Inverter

Berkani¹,

Negadi²,

Allaoui³

et al. 2019

EJEE

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The paper proposes a new control structure for sensorless induction motor drive based on a five-level voltage source inverter (VSI). The output voltages of the five-level VSI can be represented by nine groups. Then, the amplitude and the rotating velocity of the flux vector can be controlled freely. Both fast torque and optimal switching logic can be obtained. The selection is based on the value of the stator flux and the torque. This paper investigates a new control structure focused on controlling switching frequency and torque harmonics contents. These strategies, called ISFDTC, indeed combines harmoniously both these factors, without compromising the excellence of the dynamical performances typically conferred to standard DTC strategies. The validity of the proposed control technique is verified by Matlab/Simulink. Simulation results presented in this paper confirm the validity and feasibility of the proposed control approach and can be tested on experimental setup. Keywords:DTC, control of switching frequency, induction motor, multi-level inverter and flying capacitors inverter.

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Section: Introductionmentioning

confidence: 99%