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426 articles for “DC”
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Modeling of The DFIG Wind Turbine
Abstract: This paper studies the power-speed characteristics and the fundamentals of wind electrical systems along with the modeling of the various wind turbine structures and simulation of the same using MATLAB-SIMULINK. It deals with the vector control and modeling of the Doubly-Fed Induction Generator (DFIG), which can maintain the DC link voltage. This paper focuses on the analysis of traditional decoupled d-q vector control approaches for control of DFIG wind turbines. …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 114–118 Read article
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An Interline Dynamic Voltage Restorer (IDVR) to Mitigate Voltage Sags
Abstract: Nonlinear load are the vast source for voltage sags. Loads such as arc furnace, large variable frequency drives (VFD) Voltage interruptions can cause severe economic loss to the power system. To protect sensitive loads at the consumer side generally a DVR (dynamic voltage restorer) can be used. DVR is connected in series with the line by injection transformer and it is generally located at the distribution side. DVR is basically …
Published in Trends in Electrical Engineering · Vol. 7, Issue 1, 2017 · pp. 1–7 Read article
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Visible and Infrared Light Detection
Abstract: A circuit is made to detect either visible or infrared light. It is designed by using different light detectors, such as, infrared phototransistor, visible phototransistor, and photoresistor. If no light is shining on the detector in the circuit, the green LED is flashing. When the light is shining on the detector, the red LED starts flashing instead of the green one. Op-amp LMC 6482 builds up a simple voltage follower …
Published in Trends in Electrical Engineering · Vol. 9, Issue 2, 2019 · pp. 20–26 Read article
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On The Energization and Steady-State Performance of 6-Pulse Diode Bridge Rectifiers Supplying Constant Voltage Loads
Abstract: The paper addresses the analysis of 3-phase 6-pule diode bridge rectifier circuits supplying a special load category representable by constant voltage sources. The applied Mathematica-based solution technique can handle symmetrical and unsymmetrical 3-phase voltages. The presented results include the phase currents on the AC side as well as the magnitude and wave shape of the output current on the DC side. Several case studies demonstrating the impact of the source’s …
Published in Trends in Electrical Engineering · Vol. 11, Issue 1, 2021 · pp. 14–23 Read article
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A Performance Analysis of Hybrid Energy Storage System for Light Electric Vehicle with MATLAB/Simulink
Abstract: In this present time of automobile industry and our dependence upon fossil fuel for transportation is increasing day-by-day. Our excessive use of conventional energy source led us to the problem like global warming, increasing pollution in environment is major threat. To sort out this major issue up to some point, we can use Electric Vehicles (EV). In this paper, Hybrid Energy Storage System (HESS) for light electric vehicle is proposed. …
Published in Trends in Electrical Engineering · Vol. 10, Issue 3, 2020 · pp. 15–26 Read article
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A Review on STATCOM Controller for Power Quality Enhancement in Distributed System
Abstract: New technologies, using power Electronics-based concepts, have been Developed to provide protection for Commercial and industrial customers from Power quality problems on the electrical Distribution system known as Custom Power Products. Custom power devices are classified into three categories by their structures such as dynamic voltage regulator (DVR), distribution static compensator (STATCOM) and unified power quality compensator (UPQC).The Distribution Static Compensator (D-STATCOM), one of the custom power product, is a …
Published in Trends in Electrical Engineering · Vol. 11, Issue 2, 2021 · pp. 24–29 Read article
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Effect of Turn-on Angle Variation on Performance of the Switched Reluctance Motor
Abstract: Stepper motors, brushless DC motors and switch reluctance motors emerged in the last few decades and these motors are finding applications in the various fields depending upon the demand. Switched reluctance motors have 6-4, 8-6 and 10-8 stator pole-rotor pole construction available. These motors work on the principle of reluctance. In this paper, analysis is carried out for 6 stator pole, 4 rotor pole switched reluctance motor. The parameters like …
Published in Trends in Electrical Engineering · Vol. 11, Issue 3, 2021 · pp. 1–7 Read article
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Regulation of Second and third Order Intervals Plant Using PID Surface Sliding Mode Control Strategy
Abstract: In this article regulation aspects of second and third-order interval systems considering sliding mode control, PID surface sliding mode control strategies are discussed. The transfer function models of second and third order systems are considered for the evaluation of system performances. The linear part and non-linear part of the SMC strategy are designed and stability is analyzed using Lyapunov analysis. A conventional PID controller and PID surface SMC strategy are …
Published in Trends in Electrical Engineering · Vol. 13, Issue 2, 2023 · pp. 28–49 Read article
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Economic Load Dispatch using GAMS for 20 bus Rapid Transit Vehicular System
Abstract: This paper investigates a 20-bus system smart grid for economic load dispatch using GAMS software which is used for future rapid transit vehicles. Rapid transit is the need of the hour of the emerging vehicular technologies. If we are trying to understand the various transit systems such as buses and trains and again the classification of light rail, metro and fast and bullet trains running on a DC/AC system, it …
Published in Trends in Electrical Engineering · Vol. 13, Issue 3, 2023 · pp. 1–6 Read article
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A New Approach for Cuk Converter for Solar/Wind Hybrid Standalone System
Abstract: The non-conventional energy such assolar photovoltaic system and wind turbine are naturalresources and provides sustainable green energy .Now,Electricity is the most requisite means for man. All theenergy resources are depleting day by day In thecurrent technology , This project could be effective toachieve good prediction accuracy in smart grid usingdifferent weather conditions. It also upgrades thesocioeconomic condition of rural lives. In this articlebasically The wind turbine and solar photovoltaic (PV)are …
Published in Trends in Mechanical Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 18–28 Read article
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Effect of Notching on the Return loss of T-shaped Microstrip Patch Antenna for Wireless Communication System
Abstract: AbstractWith the loading of a pair of notches, a T-shaped slot and a pair of rectangular slots, novel bandwidth enhancement of microstrip antenna is demonstrated. The design is fed through a single coaxial probe. The proposed antenna is a modification of a simple T-shaped antenna which provides good radiating characteristics with enhanced bandwidth. The proposed antenna covers the S band and is used for many wireless applications. The proposed antenna …
Published in Trends in Opto-electro & Optical Communication · Vol. 7, Issue 2, 2017 · pp. 7–11 Read article
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Radio-Frequency (RF) Energy Transfer and Harvesting Techniques with Rectifier and Antenna
Abstract: Electromagnetic energy has an important role in power and energy industry. As the demand for power increases, need for alternate energy sources are essential. Radio frequency (RF) energy transfer and harvesting techniques becomes one of the solutions. Basic RF harvesting circuit consists of three elements. This can be achieved by using a rectenna combination of rectifier and antenna. The antenna is to receive RF signal and rectifier to convert RF …
Published in Journal of Communication Engineering & Systems · Vol. 10, Issue 1, 2020 · pp. 1–5 Read article
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Rectenna Design with Defect Ground Structure at 2.16 GHz
Abstract: AbstractThis paper presents the rectenna design for Wireless Power Transmission. The design would receive and convert microwave of 2.16 GHz to DC. Proposed rectenna is a combination of microstrip patch antenna, followed by stepped impedance filter and then matching circuit and rectifier circuit. A low-pass filter (LPF) at the input port of the rectifying circuit is used to suppress the high order harmonics. The IE3D software is used for the …
Published in Journal of Communication Engineering & Systems · Vol. 3, Issue 1, 2013 · pp. 16–18 Read article
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Providing Biometric Protection for Iris using Watermark and Visual Cryptography
Abstract: This paper presents a novel security architecture which protects the iris using watermarking and visual cryptography techniques. The iris region is protected using watermarking technique where we are using DCT to embed the watermarked text image into the iris image in the low frequency band. After performing watermarking, the watermarked image is further processed to generate a template using Daugmans method and Gabor filter. The generated template is then gone …
Published in Journal of Communication Engineering & Systems · Vol. 10, Issue 2, 2020 · pp. 1–3 Read article
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Design of Front-end for Variable-frequency Drive
Abstract: A variable-frequency drive (VFD) is a device used in electro-mechanical drive systems to regulate the speed and torque of AC motors. It consists of a rectifier, a DC link, and an inverter, which work together to convert AC power into a variable frequency and voltage AC power supplied to the motor. By providing accurate speed regulation, VFDs enable energy conservation, enhanced process management, and reduced motor wear. They are commonly …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 11, Issue 1, 2023 · pp. 31–35 Read article
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Physical Activity Based Vehicle Control Using ESP32
Abstract: This paper introduces an optimized and reliable project named Move-Buddy, a device that encourages physical movement in children. This is a way of engaging children in a game which causes them to move their body in different positions (e.g., wave their arms and move their legs) for the device to move forward, backward, left, and right according to the action performed by the child. The device uses multiple sensors placed …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 11, Issue 3, 2023 · pp. 32–42 Read article
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Wireless Electrical Power Transmission
Abstract: Abstract: Wireless power transmission (WPT) has been attracting a wide range of subjects in various fields and also become a highly active research area because of their potential in providing high technology to our daily lives. The wireless power transmission will be mandatory to use in the near future because this technology enables the transmission of electrical energy from a power source to an electrical load across an air gap …
Published in Journal Of Network security · Vol. 7, Issue 3, 2019 · pp. 23–30 Read article
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Clinical and Etiological Profile of Heart Failure Patients
Abstract: This study was undertaken to study the clinical and etiological profile of patients with heart failure at Mamata General Hospital, Khammam. This is a study of clinical and etiological profile of heart failure in patients of above 15 years of age, who were admitted in Mamata Medical College during the period December 2012 to November 2013. The incidence of heart failure (HF) in Mamata General Hospital is less compared to …
Published in Research and Reviews: A Journal of Medicine · Vol. 4, Issue 1, 2014 · pp. 6–11 Read article
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Hematopoietic Stem Cells: Sources and Therapeutic Potential for Autoimmune Diseases and Cancer
Abstract: Hematopoietic stem cells (HSCs) are a group of multipotent adult stem cells that are responsible for lifelong production of all types of functional blood cells comprising myeloid (monocytes, macrophages, granulocytes), megakaryocytes/platelets, red blood cells (erythrocyte), T-cells, B-cells, natural killer (NK) cells, mast cells and dendritic cells (DCs). HSCs have the capacity for self-renewal and differentiation into various tissues. These remarkable properties of HSCs make them an ideal tool for tissue …
Published in Research and Reviews: Journal of Oncology and Hematology · Vol. 1, Issue 3, 2012 · pp. 6–14 Read article
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Design and Performance Evaluation of a Solar-Assisted Electric Bicycle for Sustainable Urban Transportation
Abstract: The increasing demand for sustainable transportation and the depletion of fossil fuel resources have accelerated the development of environmentally friendly mobility solutions. Electric bicycles have emerged as an effective alternative for short-distance transportation due to their low energy consumption and reduced environmental impact. However, their dependence on grid-based charging limits their sustainability, particularly in regions with inadequate charging infrastructure. This study presents the design, development, and performance evaluation of a …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 2, 2026 · pp. 31–46 Read article