Vienna rectifiers have gained popularity in recent years for AC to DC power conversion many industrial applications such as welding supplies, data centers, telecommunication sources, aircraft systems, and electric vehicle charging stations. The advantages of this converter are low total harmonic distortion (THD), high density, efficiency. Due the inherent current control loop voltage-oriented strategy proposed paper, good steady-state performance fast transient response can be ensured....

In Malaysia, the electric vehicle (EV) market is experiencing significant growth, necessitating installation of charging stations (CSs) along routes to alleviate range anxiety among EV users. Integrating EVs with renewable energy sources (RESs), such as solar energy, imperative support United Nations' Sustainable Development Goals (SDGs). Given limited availability photovoltaic (PEVCS) in their becomes imperative, requiring careful consideration several key criteria for ideal allocation....

Electric vehicles (EVs) are a renewable energy-based transportation system that is growing significantly in many regions. Due to their minimal operating costs and better environmental impacts, EVs becoming more prevalent. Moreover, can overcome issues by reducing greenhouse gas (GHG) emissions improving air quality. Yet, the market struggling locate charging stations (CSs) some places. Accessibility CSs influences development of EVs. Hence, companies investing cost building promote adoption...

In Malaysia, the electric vehicle (EV) market is experiencing significant growth, necessitating installation of charging stations (CSs) along routes to alleviate range anxiety among EV users. Integrating EVs with renewable energy sources (RESs), such as solar energy, imperative support United Nations' Sustainable Development Goals (SDGs). Given limited availability photovoltaic (PEVCS) in their becomes imperative, requiring careful consideration several key criteria for ideal allocation....

This paper discusses the effect of inductive coil shape on sensing performance a linear displacement sensor. The sensor consists thin type with pattern guide, thus being suitable for tiny space applications. position can be detected by measuring inductance coil. At each due to change in area facing guide value is different. Therefore, objective this research study various shapes and propose that achieve good performance. Various meander, triangular square circle different turn number coils...

From the Malaysian harvester's perspective, determination of ripeness oil palm (FFB) is a critical factor to maximize production. A preliminary study novel fruit sensor detect maturity bunches presented. To optimize functionality sensor, frequency characteristics air coils various diameters are investigated determine their inductance and resonant characteristics. Sixteen samples from two categories, namely ripe fruitlets unripe fruitlets, tested 100 Hz up MHz frequency. The results showed...

This paper is dedicated to investigating static eccentricity in a three-phase LSPMSM. The modeling of LSPMSM with between stator and rotor developed using finite element method (FEM). analytical expression for the permeance flux components nonuniform air-gap due fault discussed. Various indexes detection current signal IM permanent magnet synchronous motor (PMSM) are presented. Since composed which combination these two motors, ability features evaluated diagnosis simulated presence analyzed...

The paper aims to study the sensor that identifies maturity of oil palm fruit bunches by using a flat-type inductive concept based on resonant frequency technique. Conventionally, human grader is used inspect ripeness fresh bunch (FFB) which can be inconsistent and inaccurate. There are various new methods proposed with intention grade FFB, but none has taken concept. In this study, resonance air coil investigated. Samples FFB tested frequencies ranging from 20 Hz 10 MHz results obtained...

—In this study, a cost-effective and non-invasive detection strategy is proposed for three-phase line start permanent magnet synchronous motor (LSPMSM) under mixed eccentricity fault using current signature analysis. In respect, theory of air gap magnetic field in eccentric LSPMSM presented. The examined through modeling experimental studies. Two-dimensional time stepping finite element method employed to calculate the parameters. Effects mechanical load severity on are also investigated....

Oil palm ripeness' main evaluation procedure is traditionally accomplished by human vision. However, the dependency on evaluators to grade ripeness of oil fresh fruit bunches (FFBs) traditional means could lead inaccuracy that can cause a reduction in extraction rate (OER). This paper emphasizes battery method distinguish FFB stages determining value load resistance voltage and its moisture content resolution. In addition, computer vision using color feature tested same samples compare...

With their highly robust nature and simple design, switched reluctance machines are finding way into numerous modern day applications. However, they produce oscillatory torque that generates ripple mechanical vibrations. A double rotor structure to maximize the flux linkage thereby increase generating capability is proposed. As machine operates close saturation, computation depends heavily on energy conversion as rolls over stator for a fixed pole pitch. The characteristics non-linear, hence...

High-efficiency motors are being gradually introduced in many industrial applications because of their positive impacts on the environment by reducing energy consumption and CO2 emission. In this respect, line start permanent magnet synchronous (LS-PMSMs) have been recently. Due to unique configuration, LS-PMSMs allow obtaining super premium efficiency levels, accompanied with a high torque power factor. However, since use industry is its infancy, no efficient scheme has yet reported for...

This paper presents a novel double-stator permanent-magnet machine integrated with triple rotor magnetic gear structure, which is proposed to address problems of mechanical geared generators for low-speed applications. Torque transmission based on three rotors consisting prime (PM) poles in the middle and field PM inner outer rotors. The combines functions gearing electrical power generation. operating principles generator are discussed torque distribution characteristics analysed using 2D...

Microstructural, topology, inner morphology, and gas-sensitivity of mixed xWO(3)(1-x)Y(2)O(3) nanoparticles (x = 1, 0.95, 0.9, 0.85, 0.8) thick-film semiconductor gas sensors were studied. The surface topography morphological properties the powder sensing film characterized with X-ray diffraction (XRD), atomic force microscopy (AFM), transmission electron (TEM), scanning (SEM). Also, sensitivity printed films evaluated in presence methane (CH(4)) butane (C(4)H(10)) at up to 500 °C operating...

Among palm oil millers, the ripeness of Fresh Fruit Bunch (FFB) is determined through visual inspection. To increase productivity many researchers have proposed with a new detection method to replace conventional one. The sensitivity such sensor plays crucial role in determining effectiveness method. In our preliminary study novel fruit detect maturity bunches proposed. design air coil based on an inductive further investigated improve its sensitivity. This paper investigates results...

This paper presents a mobile Hall sensor array system for the shape detection of ferromagnetic materials that are embedded in walls or floors. The operation is based on principle magnetic flux leakage to describe material. Two permanent magnets used generate flow. distribution perturbed as material brought near and changes detected by 1-D setup. process imaging done signal processing unit before it displays real time images using netbook. A application software developed acquisition...

The electro-magnetic torque production in the reluctance machine is highly influenced by magnetic linkages air-gap area.The conventional machines derive drawback of reduction area to a minimal due influence mechanical unbalancing thereby restricting effective energy conversion area.In order increase linkage area, dual-air-gap structure introduced.The realised through division circuit into two air-gaps while still maintaining net length value.A double-rotor with singlestator used attribute...

Early detection of asymmetry in electrical motors is important because their diversity use different fields. A proper fault scheme helps to stop propagation the failure or limit its escalation severe degrees and thus prevents unscheduled downtimes that cause loss production financial income. Line start-permanent magnet motor (LS-PMSM) one modern high efficiency introduced market recently. new method for diagnosis a broken rotor bar line-start permanent synchronous presented this paper. The...

There are many factors affecting oil extraction rate (OER) but a large contributor to high national OER is by processing good-quality fresh fruit bunches (FFB) at the mills. The current practice for grading palm in mills using human graders visual inspection, which can lead repeated mistakes, inconsistent evaluation results, and other related losses. This study aims develop maturity sensor that detect grade send indication user whether accept or reject bunches. focuses on battery principle...

This paper aims to study a triple flat-type air coil inductive sensor that can identify two maturity stages of oil palm fruits, ripe and unripe, based on the resonance frequency fruitlet capacitance changes. There are types structure have been tested, namely Triple I II. is series with fixed number turns (n = 200) different length, II length (l 5 mm) turns. The peak comparison between using coefficient variation cv, which defined as ratio standard deviation mean express precision...