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View article: Post-fault voltage limit assessment for six-phase induction machines: a synchronous and slip frequency approach
Post-fault voltage limit assessment for six-phase induction machines: a synchronous and slip frequency approach Open
Six-phase machine research has attracted a lot of attention lately, as seen by the large number of articles and case studies that have been written about it. Six-phase induction machines are prevalent due to their simplicity in constructio…
View article: Guest editorial: Medium‐ and high‐frequency converters for low‐ and medium‐voltage applications
Guest editorial: Medium‐ and high‐frequency converters for low‐ and medium‐voltage applications Open
The utilization of distributed renewable energy resources and a focus on clean energy has provided a solution for meeting the growing global energy demand in an environmentally sustainable manner. Furthermore, the goal of achieving net-zer…
View article: A Generalized Fault Tolerant Control Based on Back EMF Feedforward Compensation: Derivation and Application on Induction Motors Drives
A Generalized Fault Tolerant Control Based on Back EMF Feedforward Compensation: Derivation and Application on Induction Motors Drives Open
In this paper, a fault-tolerant three-phase induction drive based on field-oriented control is studied, and an analytical approach is proposed to elucidate the limitations of FOC in flux-torque regulation from the controller perspective. W…
View article: Development of Closed-Loop Permanent Magnet Synchronous Motor Drive System Prototype
Development of Closed-Loop Permanent Magnet Synchronous Motor Drive System Prototype Open
Permanent magnet synchronous motors (PMSM) are widely used in low to mid-power applications and high-performance drives. They are preferred over brush-type motors and gradually replacing induction motors in various fields of application du…
View article: Artificial Lighting Photoperiod Manipulation Approach to Improve Productivity and Energy Use Efficacies of Plant Factory Cultivated Stevia rebaudiana
Artificial Lighting Photoperiod Manipulation Approach to Improve Productivity and Energy Use Efficacies of Plant Factory Cultivated Stevia rebaudiana Open
Stevia rebaudiana cultivated in non-native tropical conditions tends to flower early, halting vegetative growth, resulting in lower biomass and yields of its valued steviol glycoside metabolites. While indoor cultivation allows manipulatio…
View article: A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines
A systematic review on current research and developments on coreless axial‐flux permanent‐magnet machines Open
In recent years, coreless axial‐flux permanent‐magnet (AFPM) machines have been gaining attention. Being coreless, these machines do not experience eddy current (hence hysteresis losses) and has lower cogging torque leading to higher effic…
View article: Estimation of Greenhouse Gas Emissions of Petrol, Biodiesel and Battery Electric Vehicles in Malaysia Based on Life Cycle Approach
Estimation of Greenhouse Gas Emissions of Petrol, Biodiesel and Battery Electric Vehicles in Malaysia Based on Life Cycle Approach Open
A steady rise in the ownership of vehicles in Malaysia has drawn attention to the need for more effective strategies to reduce the emissions of the road transport sector. Although the electrification of vehicles and replacing petrol with b…
View article: Hydrogen as Potential Primary Energy Fuel for Municipal Solid Waste Incineration for a Sustainable Waste Management
Hydrogen as Potential Primary Energy Fuel for Municipal Solid Waste Incineration for a Sustainable Waste Management Open
Municipal Solid Waste (MSW) management has always been a challenge for the community impacting environmental sustainability. The anticipated reasons include an increase in population and prosperity. Among all the viable methods for MSW man…
View article: A comparative study on the performance of SSDR coreless AFPM generators with conventional and Halbach magnet arrays
A comparative study on the performance of SSDR coreless AFPM generators with conventional and Halbach magnet arrays Open
An axial flux permanent magnet (AFPM) generator is known to be a good candidate for both low- and high-speed applications. In this paper, a comprehensive comparison of four coreless AFPM generators is presented with conventional and Halbac…
View article: A Predictive Approach to Optimize a HHO Generator Coupled with Solar PV as a Standalone System
A Predictive Approach to Optimize a HHO Generator Coupled with Solar PV as a Standalone System Open
Production of hydrogen by means of renewable energy sources is a way to eliminate dependency of the system on the electric grid. This study is based on a technique involving coupling of an oxyhydrogen (HHO) electrolyzer with solar PV to pr…
View article: Bipolar and unipolar schemes for confined band variable switching frequency PWM based inverter
Bipolar and unipolar schemes for confined band variable switching frequency PWM based inverter Open
The single phase inverter performance through the unipolar and bipolar strategies has been previously analyzed based on the constant switching frequency pulse width modulation (CSFPWM). However, the confined band variable switching frequen…
View article: Effects of flux derating methods on torque production of fault‐tolerant polyphase inductiondrives
Effects of flux derating methods on torque production of fault‐tolerant polyphase inductiondrives Open
Fault‐tolerant drives have been gaining increasing attention due to the need to enhance the reliability and robustness of electric drive systems, particularly for safety critical applications. However, in postfault control, it is often nec…
View article: Design of a small scale fluidized-bed incinerator for MSW with ability to utilize HHO as auxiliary fuel
Design of a small scale fluidized-bed incinerator for MSW with ability to utilize HHO as auxiliary fuel Open
Waste incineration has become a mature technology and widely accepted due to its environment friendliness, easy operation and ability to reduce more than 95% mass fraction. There are some inherent limitations associated with incinerators s…
View article: Mitigating the dead-time effects on harmonics spectrum of inverter waveform by the confined band VSFPWM technique
Mitigating the dead-time effects on harmonics spectrum of inverter waveform by the confined band VSFPWM technique Open
The dead-time is necessary to be inserted between the gates drive pulses of the two power electronic switches in a one leg of any inverter to avoid a short circuit in the leg and the DC supply as well. However, adding the dead-time increas…
View article: Fault tolerance of asymmetrical six-phase induction machine during single open circuit fault to three open circuit faults using GUI
Fault tolerance of asymmetrical six-phase induction machine during single open circuit fault to three open circuit faults using GUI Open
The fault tolerance of multiphase drive is favourable in the industry for its reliability and safety reasons. However, from the educational point of view, the post-fault capability of six-phase machine is still unclear. This paper presents…
View article: The Effects of Rural Electrification on Quality of Life: A Southeast Asian Perspective
The Effects of Rural Electrification on Quality of Life: A Southeast Asian Perspective Open
Despite the general agreement about the benefits that electrification brings to well-being, few studies have concentrated on the actual effects of electrification on the diverse non-economic dimensions of quality of life (QoL). In a multi-…
View article: A Novel Reactive Current Injection (RCI) Control for Microgrid Protection with Inverter Based Distributed Generation (IBDG)
A Novel Reactive Current Injection (RCI) Control for Microgrid Protection with Inverter Based Distributed Generation (IBDG) Open
As the development of renewable distributed generations (DGs) is growing rapidly, the autonomous self-healing microgrid had emerged as an effective solution for integrating renewable DGs in the distribution networks. However, before the au…
View article: Effects of Zero-Sequence Transformations and Min-Max Injection on Fault-Tolerant Symmetrical Six-Phase Drives with Single Isolated Neutral
Effects of Zero-Sequence Transformations and Min-Max Injection on Fault-Tolerant Symmetrical Six-Phase Drives with Single Isolated Neutral Open
Recently, there has been increased interest in the study of multiphase machines due to their higher fault-tolerant capability when compared to their conventional three-phase counterparts. For six-phase machines, stator windings configured …
View article: OPTIMAL SOLAR POWERED SYSTEM FOR LONG HOUSES IN SARAWAK BY USING HOMER TOOL
OPTIMAL SOLAR POWERED SYSTEM FOR LONG HOUSES IN SARAWAK BY USING HOMER TOOL Open
Ensuring electricity coverage for rural areas in Malaysia is still a big challenge due to the houses are in deep forest and scattered locations. The estimated coverage in 2015 is only 94% and still depending on conventional fossil-fuel gen…
View article: Hill Climbing Maximum Power Point Tracking on Four Stage Switch Capacitor Based Boost Converter
Hill Climbing Maximum Power Point Tracking on Four Stage Switch Capacitor Based Boost Converter Open
In this paper, a theoretical analysis has been presented to observe the performance of the Hill Climbing (HC) Maximum Power Point Tracking (MPPT) technique on the Four Stage Switch Capacitor Based Boost Converter (4-SCBC). To implement the…
View article: New Generalized Extreme Value Distribution and its Bivariate Extension
New Generalized Extreme Value Distribution and its Bivariate Extension Open
In this paper, a new distribution called New Generalized Extreme Value (NGEV) distribution is introduced.Also, the statistical properties of this model are studied, such as, quantiles, moment generating function and moments of order statis…
View article: Voltage Source Multi Switched Capacitor Boost and Buck-Boost High Gain DC-DC Converters
Voltage Source Multi Switched Capacitor Boost and Buck-Boost High Gain DC-DC Converters Open
—This paper presents dc-dc converters based on multi switched capacitor cells for high boost. The essence in a grid connected micro-inverter is dc-dc converter; it is employed to boost the low PV voltage, which varies from 35-45 VDC in ord…
View article: INVESTIGATION OF b-VALUE VARIATIONS IN THE AFRICAN AND PARTS OF EURASIAN PLATES
INVESTIGATION OF b-VALUE VARIATIONS IN THE AFRICAN AND PARTS OF EURASIAN PLATES Open
Numerous earthquakes have occurred along the collision zones of the African and parts of Eurasian plates. Some of these earthquakes along these zones have generated tsunamis. To mitigate this hazard, knowledge of b-values of the Gutenberg …
View article: Parameter Estimation of Asymmetrical Six-Phase Induction Machines Using Modified Standard Tests
Parameter Estimation of Asymmetrical Six-Phase Induction Machines Using Modified Standard Tests Open
In multiphase machine drives, accuracy of the estimated machine parameters is crucial for effective performance prediction and/or control. While a great amount of work has been done on parameter estimation for three-phase machines, corresp…
View article: Novel Evaluation of ACK based IDS Techniques for Dropping Attack in MANETs using OMNET++ Simulator
Novel Evaluation of ACK based IDS Techniques for Dropping Attack in MANETs using OMNET++ Simulator Open
Wireless networking is becoming one of the most important technologies nowadays, allowing users to get services and access information regardless of their location and allows users to communicate with each other wirelessly without dependin…
View article: Gain and Efficiency Analysis of 2-Stage Switched Capacitor (SC) Boost Based dc-dc Converter
Gain and Efficiency Analysis of 2-Stage Switched Capacitor (SC) Boost Based dc-dc Converter Open
This paper presents the theoretical analysis, operating principles, and comparison between basic boost and 2-stage switched capacitor (SC) based boost converter. Using volt-second balance and current charge principle, voltage gain and effi…
View article: Modelling and fault-tolerant control of 5-phase induction machine
Modelling and fault-tolerant control of 5-phase induction machine Open
The paper presents modeling and analysis of a 5-phase induction machine connected to 2-level 5-leg converter in case of open-phase failure. A control of the machine is accomplished using the Field Oriented Control with hysteresis current c…
View article: Fault-Tolerant Operation of Six-Phase Energy Conversion Systems With Parallel Machine-Side Converters
Fault-Tolerant Operation of Six-Phase Energy Conversion Systems With Parallel Machine-Side Converters Open
The fault tolerance provided by multiphase machines is one of the most attractive features for industry applications where a high degree of reliability is required. Aiming to take advantage of such postfault operating capability, some newl…