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

Abstract

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.

Artificial Neural Networks Based Power Management for a Battery/Supercapacitor and Integrated Photovoltaic Hybrid Storage System for Electric Vehicles

“…The artificial neural network-based power management system would monitor the motor's power demand and optimize the power flow from the PV panel, battery, and supercapacitor to the DC bus link. Experiments should evaluate the system's performance under various conditions, and data collected during testing should be analyzed to assess the accuracy of the neural network's predictions and the effectiveness of the system in optimizing power flow [35].…”

Z-Source Inverter for Energy Management and Vector Control for Electric Vehicle Based PMSM

“…Power electronics have been utilized in a wide spectrum of applications, from doing a fly-back converter as grid interference topology in renewable energy [1], to designing low voltage DC systems in house appliances [2], aerospace applications [3], and most notably their integration into the traction chain of electric vehicles [4]. In order to achieve the latter, many research efforts have been dedicated to the development of new inverters such as Z-source inverters [5], T-type inverters and flying capacitor inverters [6,7] that are adapted to electric vehicles [8].…”