Hybrid journal (It can contain Open Access articles) ISSN (Print) 1757-3874 - ISSN (Online) 1757-3882 Published by Inderscience Publishers[449 journals]

Authors:Ahmed K. Ibrahim, Mostafa I. Marei, Hamdy S. El-Goharey Pages: 1 - 10 Abstract: This paper presents a new sensorless speed and secondary winding resistance estimation technique for brushless doubly fed reluctance generator (BDFRG) using least mean square (LMS) algorithm. Detailed mathematical derivation of the algorithm is explained and simulation results in MATLAB Simulink are shown for sensorless direct torque control (DTC) of BDFRG using LMS algorithm. A comparison to traditional speed estimation technique for BDFRG using primary winding flux linkage formula in stationary frame is then held to show the advantages of this proposed technique over the traditional method of speed estimation. Power electronics of the drive system is also simulated to consider effect of harmonics injected by electronic switches on both algorithms. Keywords: brushless doubly fed reluctance generator; BDFRG; direct torque control; DTC; least mean square; LMS; speed estimation; sensorless; wind energy conversion systems; WECS Citation: International Journal of Industrial Electronics and Drives, Vol. 5, No. 1 (2019) pp. 1 - 10 PubDate: 2019-09-23T23:20:50-05:00 DOI: 10.1504/IJIED.2019.102370 Issue No:Vol. 5, No. 1 (2019)

Authors:Hilmy Awad, M. Fouad Pages: 11 - 25 Abstract: Typically, the photovoltaic (PV)-fed houses are based on AC networks. However, a transition to DC networks is currently running due to the proliferation of DC microgrids and the merits of DC systems. This paper considers three distinct designs: AC-based, DC-based and hybrid (AC and DC)-networks. A comparison between three configurations is done based on essential aspects such as the efficiency and the cost. Basic design features such as circuit breakers and cross section area of cables are included. Although the DC-based network has more merits compared to the AC-based network, problems such the DC circuit breakers and the availability of DC-based appliances still present some challenges. Thus, the study found that a proper combination of AC- and DC-based appliances is currently the best choice for PV-based houses. Keywords: DC-house; DC microgrid; photovoltaic; renewable energy; solar Citation: International Journal of Industrial Electronics and Drives, Vol. 5, No. 1 (2019) pp. 11 - 25 PubDate: 2019-09-23T23:20:50-05:00 DOI: 10.1504/IJIED.2019.102372 Issue No:Vol. 5, No. 1 (2019)

Authors:Anupam Kumar, Abdul Hamid Bhat, Pramod Agarwal Pages: 26 - 40 Abstract: In the modern times, the pertinence of a single power electronics conversion system used in DC microgrids for facilitating energy transfer between energy generating systems and storage elements with inherent bidirectional capability has increased significantly. A dual active bridge (DAB) converter having two DC-AC converters connected back to back through a high frequency transformer is used as a power electronics conversion system for obtaining highly efficient bidirectional power conversion. In this paper, performance of DAB converter with single phase shift (SPS) is evaluated with solar photovoltaic cell on high voltage DC-bus and battery on the low voltage DC-bus. Linear load is connected in this system at the high voltage DC-bus. A step variation in load is applied and at this instant the power flows from the batteries to supply the increased load demand. Optimal operating range of converter along-with efficiency is obtained. Keywords: dual active bridge converter; bidirectional power flow; duty ratio; single phase shift; SPS; state of charge; high voltage side; low voltage side; operating range; microgrid Citation: International Journal of Industrial Electronics and Drives, Vol. 5, No. 1 (2019) pp. 26 - 40 PubDate: 2019-09-23T23:20:50-05:00 DOI: 10.1504/IJIED.2019.102376 Issue No:Vol. 5, No. 1 (2019)

Authors:Yaser M. Roshan, Reza Sabzehgar Pages: 41 - 48 Abstract: In this paper, a novel bidirectional converter modelling and control is presented for the applications in plug-in electric vehicles. The controller is developed to enforce a pseudo-resistive behaviour at input terminals of the converter to ensure the unity power factor correction in power conversion. The proposed controller is based on a nonlinear sliding mode approach utilising a modified sliding manifold based on PI structure, as well as boundary layer solution to perform chattering compensation. The input resistance of the converter is regulated and controlled to positive and negative values depending on the charging or discharging state of the electric vehicle. Numerical simulations in PSIM environment are presented that evaluate performance of the proposed modelling and feedback control scheme. Keywords: bidirectional converter; plug-in electric vehicle; sliding mode control; chattering compensation; grid-to-vehicle; G2V; vehicle-to-grid; V2G Citation: International Journal of Industrial Electronics and Drives, Vol. 5, No. 1 (2019) pp. 41 - 48 PubDate: 2019-09-23T23:20:50-05:00 DOI: 10.1504/IJIED.2019.102377 Issue No:Vol. 5, No. 1 (2019)

Authors:Mohammad AlMa'aitah, Mohammed I. Abuashour, Mohammed Al-Hattab, Omar Abdallah, Tha'er O. Sweidan Pages: 49 - 55 Abstract: In this paper, the optimisation of the PID controller employing the PSO algorithm for the interleaved buck-boost power converter is outlined. Currently, buck-boost power converters are broadly used in several application areas like the photovoltaic system, uninterruptable power supplies, and electric vehicle. The buck-boost power converter can be connected in parallel with one or more other buck-boost converters (multi phasing) or the interleaved configuration so less filtering requirement to suppress the ripple is needed and the effective resultant frequency is increased and thus high reliability and efficiency for the power converter is achieved. The switching pulses for these converters are sequenced or interleaved in time to give the required phase shift between the interleaved buck-boost converters. The control circuit for this interleaved buck-boost converter is tuned by the PSO algorithm. The system is tested firstly by changing the input voltage and secondly by changing the output load resistance. The Simulations and the operational dynamical performance of the interleaved buck-boost converter with PID controller employing PSO algorithm results are executed using MATLAB software. Keywords: interleaved buck-boost converter; PID controller; buck-boost converter; particle swarm optimisation; PSO; state space Citation: International Journal of Industrial Electronics and Drives, Vol. 5, No. 1 (2019) pp. 49 - 55 PubDate: 2019-09-23T23:20:50-05:00 DOI: 10.1504/IJIED.2019.102385 Issue No:Vol. 5, No. 1 (2019)