In this paper, two intelligent direct torque control strategies are compared with the classical direct torque control (C-DTC) scheme, namely neural network control (NNC) and neuro-fuzzy control (NFC) are introduced to replace the hysteresis comparators and lookup table of the C-DTC for pulse width-modulation-inverter-fed induction motor drive, to solve the problems of torque ripple and inconsta...

This paper proposes a nine level cascaded multilevel inverter based on the flip flops and logic gates. Generally multilevel inverter is used to achieve the high power by using a series of power semiconductor switches with the several dc voltage sources which is used to perform the power conversion. In this paper the flip flop based CMLI is compared with the conventional CMLI. The flip flops and...

The maximum boost control method for a single-phase switched-boost inverter (SBI) and single-phase Z-source inverter (ZSI) is proposed in this paper. In the proposed method, the low frequency voltage is added to the constant voltage for generating the variable shoot-through time intervals. For improving the AC output quality of the inverter, an active power switch is used to replace one of the ...

This paper presents a theoretical comparison between a static-CMOS and a hybrid-RERL design of an inverter. The measurements taken into account are the total power dissipation, the performance in terms of propagation delay, and the size of each design. The hybrid-RERL architecture uses the RERL format except it reduces the 6-phase clock presented in earlier papers to a 5-phase clock by replacin...

In this paper,Hybrid power filer (HPF) six switch two leg inverter for improved harmonic campanstion. The praposed scheme is required to an other active filter with passive filter un luckily most of the HPF are have common drawback a most number of passive components or transformer. The HPF have small rated inverter and LC filter of this proposed method. HPF are connected to the grid with out a...

Electric Vehicles (EVs) are an effective solution for reducing greenhouse gas emissions to the atmosphere. Safety is the most crucial issue in the automotive industry and any fault in the EV drivetrain may results in a fatal accident. This paper discusses the dynamic performance of EVs under drivetrain Voltage Source Inverter (VSI) switch faults and presents the suitable Fault Diagnosis Algorit...

Direct Torque Control of Permanent Magnet Synchronous Motors With Non-Sinusoidal Back-EMF. (May 2008) Salih Baris Ozturk, B.S., Istanbul Technical University, Istanbul, Turkey; M.S., Texas A&M University, College Station Chair of Advisory Committee: Dr. Hamid A. Toliyat This work presents the direct torque control (DTC) techniques, implemented in fourand six-switch inverter, for brushless dc (B...

Research in several new topologies of Multilevel inverter(MLI) has been carried out rapidly day by day. Recently several topologies have been introduced achieving higher levels with reduced device couns and DC sources .In this paper a new hybrid symmetric MLI is proposed .This topology has reduced number of controlled switches, Dc sources and numbers of capacitors which are very less compared t...

Various types of new structures in multilevel inverters are evolving day by day. One among those is the reduced switch count type inverters. This inverter consists low number switches, gate driver components, and other switches like auxiliary switches. Depending on value voltage sources we have symmetrical asymmetrical In this paper, seven level design shown for levels its output. The output wa...

This article discloses part of an invention on plug-and-play converter-level on-state voltage measurement methods for power semiconductor devices. To exclude the external supply required in circuits, a self-power solution is proposed to provide bidirectional low-voltage sources. The application circuit with demonstrated single-switch, single-phase inverter, and three-phase inverter.