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This paper presented ANN (Artificial Neural Network) based SAPF (series active power filter) for voltage control and power quality improvement of constant speed prime mover driven self excited induction generator. The constant speed prime mover such as biogas, biomass, gas-turbine, and diesel turbine driven standalone generating system has problem of poor voltage regulation and power quality with linear and nonlinear load conditions. The SAPF is inject series voltage between source and load to maintain constant source and load voltage with power quality improvement of source and load current. The SAPF is modeled using Insulated Gate Bipolar Junction Transistor based Voltage Source Converter with self supported DC bus. A 7.5 kW, 415 V, and 50 Hz asynchronous machine with SAPF and loads are designed, modeled, and simulated in MATLAB environment. The performance of ANN based SAPF is also compared with a Proportional Integral controller based SAPF. [ABSTRACT FROM AUTHOR]

Electrification of vehicular systems, partial or complete, has emerged as an attractive and sustainable alternative for futuristic transportation systems. This so-called electric vehicular technology (EVT) has engaged auto-manufacturers and researchers to primarily focus on fuel economy, driving range, performance, and costs. These parameters are influenced by the design and performance of electric propulsion system (EPS) for vehicular application and its suitable integration with various electrical and mechanical apparatus. This paper primarily presents a comprehensive study of EPS. To present the study in synthesis, a survey of important constituents of EPS is first carried out with techno-economic perspectives. Contemporary configurations of conventional and electrified vehicles are then discussed along with their respective advantages and limitations. EPS is considered to be the heart of EVT, and, therefore, components of a standard EPS are discussed and comparative analyses are carried out in terms of present trends, ongoing technological advancements and future challenges. In addition, power flow control and management algorithms for EVT are also briefed. [ABSTRACT FROM AUTHOR]

This paper presents a new topological structure for symmetrical cascaded multilevel inverters. The proposed circuit consists of cross-connected separate symmetrical DC sources which can generate number of levels equal to that of a cascaded H-bridge topology with reduced number of power switches. It is especially suitable for utility interfacing of renewable energy sources. It also offers the possibility of a transformer less and filter less operation. The working principle of the proposed topology is explained with the help of a single-phase five level inverter. Simulation results are obtained in matlab/simulink environment and are verified experimentally on a laboratory prototype. An exhaustive comparison of the proposed topology is made with the classical cascaded H-bridge topology, especially with the considerations of conduction losses and cost-effectiveness. The proposed topology results in the reduction of number of power switches, losses, installation area, and converter cost and thus can be implemented as an effective and efficient power electronic interface for renewable sources of energy with the utility grid. [ABSTRACT FROM AUTHOR]