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56 articles for “ripples”
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A Review of Torque Ripple Reduction Techniques in Switched Reluctance Motors
Abstract: Switched Reluctance Motors (SRMs) have emerged as a promising alternative to conventional motor technologies due to their rugged structure, low manufacturing cost, high-temperature capability, and suitability for harsh environments. Despite these advantages, the widespread adoption of SRMs in applications such as electric vehicles, household appliances, industrial drives, and aerospace systems is significantly restricted by the issue of torque ripple. Torque ripple manifests as periodic fluctuations in the developed electromagnetic torque, …
Published in International Journal of Electrical Machine Analysis and Design · Vol. 3, Issue 2, 2025 · pp. 45–50 Read article
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Overcurrent Elimination and Current Ripple Reduction in Multi- Motor Systems Fed by Reduced Switch-Count VSI Using Advanced Scheme for High-Performance Drive Applications
Abstract: This paper proposed a novel control approach for overcurrent removal and reduction of current ripple for multi-motor systems powered by a Voltage Source Inverter (VSI) with a reduced switch-count. This approach significantly enhances the regulation of armature current with improved performance of the drive while improving the hardware utilization of the inverter. Simulation and analysis showed the capability of the scheme to improve power quality and improve system reliability, making …
Published in International Journal of Electrical Power and Machine Systems · Vol. 4, Issue 2, 2026 Read article
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Motors Using a Deep Learning-Based Torque Control with Torque Ripple Reduction under Nonlinear Magnetic Conditions
Abstract: This research discusses a deep learning strategy for torque management to minimize the effect of torque ripple in a nonlinear electric motor. Nonlinear electric motor losses may include: magnetic saturation, harmonic flux losses and inverter losses. In many cases when the system parameters deviate and/or instability issues occur, the traditional method with a model-based approach or PI control may encounter challenges. In this case, the authors proposed a hybrid approach …
Published in International Journal of Advanced Control and System Engineering · Vol. 4, Issue 2, 2026 Read article
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A Simulation Analysis of Ripple Correlation Control MPPT for Low Power PV Systems
Abstract: AbstractIn this work, a simulation study of Maximum Power Point Tracking (MPPT) with Ripple Correlation Control (RCC) technique has been done. Photovoltaic (PV) array along with the DC/DC buck converter and its Maximum Power Point Tracking (MPPT) control strategy has been implemented with RCC for various solar radiations at 25oC, and simulations results are presented. RCC with low pass filter and tuned with Proportional Controller (PI) has been implemented. Simulation …
Published in Journal of Advancements in Robotics · Vol. 7, Issue 3, 2020 · pp. 14–19 Read article
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A high Regulated Low Ripple DC Power Supply based on LC Filter and IGBT
Abstract: Filaments operating at a high temperature region would require ripple free current constant power source for their heating purposes. Introduction of ripple in the power supply would result in high power loss, aberrant, unpredictable temperature rise etc. High current ripple can also extenuate the life of electrolytic capacitors used in the circuit. In this paper we propose a scheme in which we would not only use simple, low cost, easily …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 2, 2012 · pp. 1–10 Read article
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Comparative Study of Torque Ripple Minimization of PMSM using PI and Proportional Resonant (PI-RES) Controller
Abstract: The minimization of speed ripple of the permanent magnet synchronous motors (PMSM) in low speed range becomes a major problem while applying the PMSM to refrigerant system. Earlier, an iterative learning controller was applied in conjunction with the conventional proportional integral (PI) speed controller to minimize the speed ripple. Here, a frequency variable resonance controller is applied in conjunction with the conventional proportional integral speed controller as a PI-RES controller, …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 3, 2018 · pp. 17–23 Read article
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TORQUE RIPPLE MINIMIZATION OF PV BASED SRM DRIVE
Abstract: The switched reluctance motor drive is the recent choice for industrial applications due to its unique features like double salient pole motor without winding, permanent magnet and commutator in rotor. Solar photovoltaic based water pumping system using AC and DC motor is common but SRM drive is more favourable in terms of cost, reliability, robustness in nature. The primary drawback of SRM drive is higher torque ripple which makes heavy …
Published in Journal of Control & Instrumentation · Vol. 9, Issue 3, 2018 · pp. 37–44 Read article
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Closed Loop Control of Interleaved Buck Converter with Extremely Low Output Current Ripple
Abstract: AbstractIn this paper, the analysis and modeling of interleaved buck converter with PI controller is discussed. Converters are controlled by two active switches, which have the same switching frequency but 180° out of phase. The loss associated with the power device is half of the input voltage and the duty cycle is below 50%. By paralleling the converters, the input current can be shared among the inductors so that high …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 2, 2018 · pp. 9–18 Read article
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Torque Ripple Minimization of High-Power Fed Induction Motor Drive Using Low Switching Frequency
Abstract: Multi-level inverter has emerged as an important topology in the area of high-power-medium voltage energycontrol applications due to its several advantages such as its good harmonic rejection capability, betteroutput voltage with reduced ripple, reduction of voltage ratings of the power semiconductor switchingdevices and also the reduced electro-magnetic interference problems, etc. This paper presents the torqueripple minimization and the performance under different operating conditions (dynamic and steady state) ofindirect vector-controlled high-power …
Published in Journal of Power Electronics and Power Systems · Vol. 1, Issue 1-2-3, 2011 · pp. 72–83 Read article
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Comparative Study of a 32 bit Clock Gated ALU based on Carry Skip Adder and Ripple Carry Adder
Abstract: The ALU is one of the most frequently accessed modules in a CPU and is utilized during most instruction executions. Hence the power consumption of the ALU is a major concern. In this paper a low power 32 bit ALU is designed using VHDL. Lower power consumption is achieved by using clock gating technique than conventional design. A carry skip adder with variable block length is used for the arithmetic …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 2, 2013 · pp. 6–11 Read article
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Brushless DC Motor Drive System with Reduced DC-Link Capacitor for Reduction in Torque Ripple
Abstract: Presence of large value of dc-link capacitance in a brushless DC motor (BLDCM) drive system leads to an increase in the weight and volume of the system. A combination of an IGBT switch along with a small value of DC-link capacitance is proposed in this paper. BLDCM will be supplied by DC-link capacitor and rectified mains supply alternately via DC-link IGBT chopping during the time when the output voltage of …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 19–27 Read article
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Torque Ripple Reduction in Induction Motor Drive Using Direct Torque Control Technique with Space Vector Modulation
Abstract: Three phase squirrel cage induction motor drives are widely used in industries for variable speed applications. This paper proposes the design and simulation of an induction motor (IM) drive with DTC-SVM (Direct Torque Control–Space Vector Modulation). The IGBT/Diode inverter switches are controlled by the DTC-SVM technique. The synthesis of vector selection table depends on the rotational direction of the stator flux vector. The control algorithm in DTC-SVM methods are based …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 1, 2015 · pp. 33–39 Read article
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Comparative Analysis of Partial Product Addition in Vedic Urdhva Tiryakbhyam Multiplier
Abstract: Multiplication is one of important operations performed in many digital signal processing applications. Hence the performance of the multiplier will affect the overall performance of the DSP processor. The methods like booth multiplier, and array multiplier are used. Vedic multiplication technique had proved its importance in getting the speed of multiplication. It is required to add the generated partial products quickly, to generate the result of multiplication faster. To add …
Published in Journal of VLSI Design Tools and Technology · Vol. 13, Issue 1, 2023 · pp. 15–32 Read article
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Measurements and Analysis of Electric Power Quality
Abstract: The ideal supply voltage is pure sinusoidal voltage with nominal frequency and nominal amplitude.Any variation from this is considered as a power quality event or a disturbance. One importantaspect in the field of power quality is monitoring and control of the qualitative parameters of theelectrical energy according to today’s standards. In that way, a big attention is paid to define thedisturbances and determination of procedures for their measurement. A large …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 2, Issue 1, 2014 · pp. 4–11 Read article
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Enhance the Thermal Performance and Fluid Flow Behavior in Micro-Tube Heat Exchangers with Variable Fluid Properties for Cooling Applications
Abstract: This paper focus on the substantial effects of fluid property changes and phase change events, this study provides a comprehensive transient assessment of the heat exchanger's thermal performance and fluid flow behaviour for cooling and dehumidification applications. In response to a step-change perturbation, a dynamic model was created and co-simulated to describe the moist air (shell-side) and the two-phase refrigerant (tube-side), as well as their non-linear interactions. The significant correlation …
Published in Journal of Thermal Engineering and Applications · Vol. 13, Issue 2, 2026 Read article
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Design and Implementation of A 4-bit Multiplier using Wallace Tree Architecture in 180 nm Technology
Abstract: Over the period of last decade, power dissipation has become one of the most important factors for VLSI designers in the design of most digital systems. Even though the speed and area are considered to be the critical factors in design of digital systems, there is a trade of with power consumption. Adders and multipliers are the most important arithmetic units in a processor and the major sources of power …
Published in Journal of Microcontroller Engineering and Applications · Vol. 2, Issue 1, 2015 · pp. 17–23 Read article
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Survey on Analysis and Simulation of Permanent Magnet Synchronous Motor (PMSM) under Vibration Effect using Analytical Magnetic Field Calculations
Abstract: In several application domains, induction motor drives have been steadily being replaced in recent years by permanent magnet synchronous motor (PMSM) drives. Due to the compactness, efficiency, resilience, reliability, and shape adaption to the working environment of PM motors, this is starting to become a trend. In high performance applications demanding quieter operation, permanent magnet synchronous motors are widely used. Instead of torque ripples and cogging torque, electromagnetic forces are …
Published in Journal of Microwave Engineering and Technologies · Vol. 9, Issue 2, 2022 · pp. 26–33 Read article
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Performance Evaluation of Brushless DC Motor during Sinusoidal and Trapezoidal Back-EMF Waveform
Abstract: Due to increasing popularity and wide application in the drive system BLDC motor is widely used. An undesirable signal in the brushless dc motor is a ripple in torque, which is in challenging motor control and some machine tools. This article represents the performance evolution of BLDC motor by using the sinusoidal and trapezoidal back EMF waveform for getting the efficient operation of BLDC motor drives. In sinusoidal back EMF …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 14–22 Read article
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Design and Implementation of Low Latency 16-bit Full Adder
Abstract: In the new age world, modern technology has vast applications in various fields of engineering, medicine, and others. Digital electronics processing and systems play a vital role in the analysis and computation of data representation. Electronic systems have gradually become faster and smaller scale. The primary structural element of any modern ALU-based processor is an adder. Addition is a well-known extremely basic function that is employed in nearly all computing …
Published in Journal of VLSI Design Tools and Technology · Vol. 14, Issue 3, 2024 · pp. 21–31 Read article
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Three Stage High Step-up Interleaved Boost Converter with Voltage Multiplier Cell
Abstract: In this paper, three stage high step-up interleaved boost converter with three voltage multiplier cells (VMCS) and three state switching cells (3SSC) is proposed. Here an interleaved boost converter is used, as a result higher efficiency and reduced input ripple current is obtained. Also, an additional stage of voltage multiplier i.e., three stages is added so that voltage gain will increase. It reduces switching loss and stress through the devices. …
Published in Journal of Electronic Design Technology · Vol. 5, Issue 1, 2014 · pp. 39–56 Read article