Suchergebnisse - "Pulse width modulation"

To solve the problems of pulse width modulation (PWM) proportional solenoid valve control mode, such as large current ripple and low control precision, a method of dual PWM was adopted to control the proportional solenoid valve. Here, the dual PWM meant a second modulation was added in one PWM perio...

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The paper proposes an original method for pulse-width modulation (PWM) of A.C. voltage. The method makes it possible to improve harmonic composition of the voltage. The paper presents results of approbation of the method for PWM-control of an asynchronous electric drive using  the developed model in...

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The design and control of a half-bridge converter that ensures zero voltage and zero current shifting of electronic switches throughout the load band for a large range of input voltage is described in this paper. The new proposed topology of the converter achieves a substantial reduction of losses d...

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<p><strong>Abstract</strong> - This paper proposes a simple Carrier-Based PWM (CBPWM) technique to control the three- to five-phase Direct Matrix Converter (3×5 DMC). The proposed technique uses the indirect modulation approach to control the 3×5 DMC such as a three-phase bidirecti...

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Wireless laser power transmission is a promising technique in the far-field wireless power supply with the advantages of high-power density, and small transmitter and receiver sizes. This article proposes a high-efficiency pulse width modulation-based wireless laser power transmission step-down syst...

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Introduction. Approaches to the introduction of negative feedback in pulse control systems regulating the parameters of electricity flow with pulse-width modulation (PWM) continue to attract research attention in the field of switch power amplifiers (SPA) and switch voltage converters (SVC). Evaluat...

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Introduction. The Modular Multilevel Converter (MMC) is an advanced topology widely used in medium and high-power applications, offering significant advantages over other multilevel converters, including high efficiency and superior output waveform quality. Problem. The modulation techniques and sub...

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A novel co-simulation model, combining motor FEM simulations in Ansys Maxwell with an inverter and control system in Twin Builder and MATLAB/Simulink, is presented. The objective is to more closely resemble real-life motor performance and assess high-frequency effects and motor losses of different s...

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The issues on the parameter determination of the sine filters for the VVVF-drive are considered. The computer simulation of the sine filter operation is resulted.

Objective. The aim of the study is to study the methods of temperature control using the Peltier element in a given temperature range.Method. A heating method is applied using a Peltier element in a temperature control device of a small plate by regulating the current and using a cooling fan to redu...

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The class-D power amplifiers which operate in a switched mode have become an attractive alternative of the conventional analog power amplifiers class-A, B and AB in the field of audio applications. They offer high power efficiency compared to analog power amplifiers and can be realised as completely...

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This paper presents a comprehensive comparative analysis of different multilevel converter topologies, including 2-level, Neutral Point-Clamped (NPC), Cascaded H-Bridge (CHB), and T-Type converters using the DQ current control strategy. The study aims to evaluate the performance of these topologies...

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The 4-moduli set residue number system (RNS),{2n+1, 2nâ1, 2n+3, 2nâ3}, with a wide dynamic range, has recently been proposed as a balanced 4-moduli set for utilizing the cases that demand fast calculations such as deep learning and implementation of asymmetric cryptographic algorithms. Up to now, on...

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The article is devoted to the problems of synthesis of multiphase electromechanic modules consisting of a multiphase electrical machine (m &gt; 3) and a multiphase controlled converter. In the multi-phase design of the electric machine, it is possible to obtain a trapezoidal electromotive force...

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This paper has been endeavoring to enforce modern technique in the field of electronics. It is focused on a 6Degree of Freedom (DOF) and an under actuated system. For the underwater controlling and modeling of the vehicle, it has used an Internet Protocol (IP) camera for underwater surveillance. Th...

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The increase in safety and efficiency requirements in the mining industry drives the implementation of automated systems and the transition to unmanned technologies. This trend is also true for locomotive haulage with battery-powered mine electric locomotives. Wireless charging stations have already...

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Switched Boost Inverter (SBI) operates in buck-boost mode with an extensive spectrum of output voltage obtainable from a specific source voltage. Also, this structure provides superior protection against Electromagnetic Wave Interference (EMI) juxtaposed with the traditional impedance source inverte...

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Talkative power conversion (TPC) is a switching ripple communication technique that integrates data modulation into a switched-mode power electronics converter, enabling simultaneous information transmission and power conversion. Despite numerous research papers published over the last decade on var...

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Precision PWM variable spray technology and target detection, identification, and localization technology are key to solving the pesticide waste associated with traditional constant application methods and to improving pesticide utilization for achieving precise application. To address the problems...

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Direct Power Control (DPC) technique applied to a Doubly-Fed Induction Generators (DFIG) presents numerous benefits, although encounters difficulties concerning power calculation and susceptibility to changes in system parameters. This novel paper addresses these restrictions by the utilization of S...

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