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1

Bolaño Martínez, Adrián, Isaac Jimenez Navarro, Vladimir Sousa Santos, Enrique Ciro Quispe, and Pablo Daniel Donolo. "MATLAB/Simulink modeling of electric motors operating with harmonics and unbalance." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 5 (2022): 4640. http://dx.doi.org/10.11591/ijece.v12i5.pp4640-4648.

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This paper aims to present a simulation model for the analysis of the operational characteristics of electric motors (EMs). The model was developed on the Simulink platform of the MATLAB program and allows analysis in supply conditions with harmonics and voltage unbalance. The contribution of the model is that it considers the mechanical losses and provides for the study of the effect of each component of the electrical sequence of the harmonics and the voltage unbalance on the electromechanical characteristics of the EM. The model developed was tested in a 37.3 kW EM, operating under four pow
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2

Adrián, Bolaño Martínez, Jiménez Navarro Isaac, Sousa Santo Vladimir, Ciro Quispe Enrique, and Daniel Donolo Pablo. "MATLAB/Simulink modeling of electric motors operating with harmonics and unbalance." International Journal of Electrical and Computer Engineering (IJECE) 12, no. 5 (2022): 4640–48. https://doi.org/10.11591/ijece.v12i5.pp4640-4648.

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This paper aims to present a simulation model for the analysis of the operational characteristics of electric motors (EMs). The model was developed on the Simulink platform of the MATLAB program and allows analysis in supply conditions with harmonics and voltage unbalance. The contribution of the model is that it considers the mechanical losses and provides for the study of the effect of each component of the electrical sequence of the harmonics and the voltage unbalance on the electromechanical characteristics of the EM. The model developed was tested in a 37.3 kW EM, operating under four pow
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3

Silva, Sérgio Augusto Oliveira da, Pedro F. Donoso-Garcia, Porfírio C. Cortizo, and Paulo F. Seixas. "A line-interactive UPS system implementation with series-parallel active power-line conditioning for three-phase, four-wire systems." Sba: Controle & Automação Sociedade Brasileira de Automatica 16, no. 2 (2005): 200–210. http://dx.doi.org/10.1590/s0103-17592005000200008.

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This paper presents a three-phase line-interactive uninterruptible power supply (UPS) system with active series-parallel power-line conditioning capabilities. Synchronous reference frame (SRF)-based controller is used for harmonic and reactive power compensation generated from any configuration of non-linear loads. Under normal line conditions the UPS system works with universal filtering capabilities, such as compensating the input currents and output voltages. Two three-phase pulsewidth modulation (PWM) converters, called series and parallel active filters, are used to perform the series and
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4

Marca, Ygor Pereira, Maurice G. L. Roes, Cornelis G. E. Wijnands, Jorge L. Duarte, and Henk Huisman. "Single-Stage MV-Connected Charger Using an Ac/Ac Modular Multilevel Converter." Energies 17, no. 12 (2024): 2998. http://dx.doi.org/10.3390/en17122998.

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Modular multilevel converters with non-sinusoidal ac voltage output can reduce cost and volume in medium-voltage-connected electric vehicle battery charging applications. The use of full-bridge submodules in such converters enables single-stage ac/ac voltage conversion, allowing a medium-voltage grid to be directly connected to a medium-frequency isolation transformer. The application of a square wave voltage at the medium-frequency transformer’s single-phase port enhances the converter’s efficiency and power density in comparison to a sinusoidal voltage. This paper presents the analysis and m
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5

Huang, Ming. "Submodule Capacitor Voltage Ripple Reduction of Full-Bridge Submodule-Based MMC (FBSM-MMC) with Non-Sinusoidal Voltage Injection." Energies 16, no. 11 (2023): 4305. http://dx.doi.org/10.3390/en16114305.

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The full-bridge submodule (FBSM)-based modular multilevel converter (FBSM-MMC) offers promising performance due to its ability to output negative FBSM voltage. This paper studies this ability of the FBSM-MMC under zero-sequence voltage injection (ZSVI) and second-order harmonic current injection (SHCI). The focus of the research is to redistribute the FBSM powers by injecting an additional power degree of freedom, resulting in a smaller FBSM capacitor voltage ripple, while keeping the maximum AC output voltage for a given fundamental frequency component of the arm voltage reference. Accordingl
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6

Chen, Huatan, Gaofeng Zheng, Juan Liu, et al. "Precise Electrohydrodynamic Direct-Write Micro-Droplets Based on a Designed Sinusoidal High-Voltage AC Power." Instruments 4, no. 1 (2020): 7. http://dx.doi.org/10.3390/instruments4010007.

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The precise manufacturing of micro/nano structures is the key to the rapid development of flexible micro/nano systems. In this paper, a sinusoidal high-voltage alternating current (AC) power is designed for electrohydrodynamic direct-writing (EDW) technology. A push-pull converting circuit is utilized as the direct current (DC) voltage regulator power of a full-bridge inverter circuit. A single-phase full-bridge inverter circuit is used to output the controllable AC voltage, which is then boost-filtered to output the high-voltage sinusoidal AC signal. The amplitude of the output sinusoidal vol
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7

Luqman, Mohammad, Muhamad Rifa'i, and Donny Radianto. "Pengaruh waktu ton SPWM terhadap tegangan inverter sinusoida." JURNAL ELTEK 22, no. 1 (2024): 38–49. http://dx.doi.org/10.33795/eltek.v22i1.4911.

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Kendaraan listrik selain membutuhkan daya berbentuk sinusoida dengan daya besar dan frekuensi variable, juga membutuhkan pengaturan tegangan atau tegangan yang stabil. Alat untuk mengubah daya dc menjadi daya ac disebut dengan inverter. Penelitian ini merupakan kelanjutan dari penelitian yang terdahulu, Pada penelitan ini dicoba untuk mencari hubungan antara panjang waktu t-on pada sinyal SPWM dengan besaran tegangan sinusoida yang dihasilkan, yang akan digunakan untuk membuat rangkaian kontrol agar tegangan relatif stabil pada nilai tertentu pada rentang daya yang lebih lebar. Cara yang dilak
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8

Hartungi, Rusdy. "Investigation of The impact of Unbalanced and Non-sinusoidal Supply Voltages on Converters." International Journal of Smart Grid and Sustainable Energy Technologies 2, no. 1 (2019): 73–78. http://dx.doi.org/10.36040/ijsgset.v2i1.218.

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In this paper two input current modulation strategies for matrix converters are experimentally analyzed under two different supply conditions: sinusoidal unbalanced voltages and non-sinusoidal balanced voltages. Both strategies use the Space Vector Modulation (SVM) technique in order to control the matrix converter accordingly to the input and output constraints. Strategy A modulates the input currents keeping the corresponding space vector in phase with the input voltage vector. Strategy B operates in order to keep the input current vector in phase with the positive sequence fundamental compo
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9

Coufal, Oldřich. "Transient Current Density in a Pair of Long Parallel Conductors." Applied Sciences 11, no. 15 (2021): 6920. http://dx.doi.org/10.3390/app11156920.

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Two infinitely long parallel conductors of arbitrary cross section connected to a voltage source form a loop. If the source voltage depends on time, then due to induction there is no constant current density in the loop conductors. It is only recently that a method has been published for accurately calculating current density in a group of long parallel conductors. The method has thus far been applied to the calculation of steady-state current density in a loop connected to a sinusoidal voltage source. In the present article, the method is used for an accurate calculation of transient current
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10

Hafeez, Kamran, Shahid A. Khan, Alex Van den Bossche, and Kamel Djamel Eddinne. "Capacitor Energy Variations in MMC Using Harmonics Injection." Power Electronics and Drives 5, no. 1 (2020): 97–107. http://dx.doi.org/10.2478/pead-2020-0007.

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Abstract Modular multilevel converter (MMC) is considered as a good technology for high-voltage direct current (HVDC) transmission systems. It can generate a good quality staircase output voltage waveform due to the cascaded connection of large number of identical sub-modules (SMs). Energy variations in SM capacitor lead to capacitor voltage fluctuations which affect the size and stability of MMC. Traditionally MMC arm voltages are controlled using direct modulation method. The closed loop and open loop compensated modulation methods are implemented to overcome the drawbacks created in direct
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11

Tiguntsev, S. G., and K. V. Shafarevich. "Development of measures to eliminate resonant phenomena at higher harmonic frequencies on power line of 35 kV." Vestnik IGEU, no. 5 (October 31, 2023): 40–50. http://dx.doi.org/10.17588/2072-2672.2023.5.040-050.

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One of the problems to ensure the quality of electricity and reliability of the network is significant deviation of the voltage curve from sinusoidal in some active electricity transmission lines of the energy system of the Irkutsk region. The purpose of the research is to develop organizational and technical measures to eliminate resonance phenomena at higher harmonics that occur in the active 35 kV electrical line connected to a traction power substation. The object of the research is non-sinusoidal mode of the 35 kV electric power transmission line connected to the medium voltage winding of
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12

Suroso, Suroso. "H-Bridge Inverter denganBoost-up Chopper sebagai Pengondisi DayaPhotovoltaic." Dinamika Rekayasa 7, no. 2 (2011): 43. http://dx.doi.org/10.20884/1.dr.2011.7.2.48.

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<p>This paper discusses anapplication of H-bridge inverter equipped with boost-up chopper circuits as photovoltaic power conditioner in stand-alone operation. First, the boost-up chopper circuits working to regulate the DCoutput voltage of photovoltaic with proportional-integral (PI) controller is described. Then, the H-bridge inverter converting the DC output voltage of chopper circuits become AC voltage waveform is presented. The uni-polar sinusoidal pulse-width modulation technique (SPWM) is appliedto the inverter circuits to produce sinusoidal output current waveform. The simulation
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13

Luqman, Mohammad, Herwandi Herwandi, and Donny Radianto. "Rancang bangun driver inverter 1000 Watt dengan kendali EGS - 002." JURNAL ELTEK 19, no. 1 (2021): 94. http://dx.doi.org/10.33795/eltek.v19i1.290.

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Abstrak
 Penelitian ini dimulai dengan penentuan spesifikasi sistem yang akan dibuat, yaitu sebuah inverter sinusoida pada tegangan output 220Vac pada frekuensi 50 Hz dengan daya sekitar 1000 Watt. Kontrol utama menggunakan EGS-002 sebagai pembangkit sinyal SPWM dan sekaligus driver transistor switching. Sebagai peranti switching adalah 8 buah transistor MOSFET IRF 3205 dengan konfigurasi full-bridge. Sebagai pengubah sinyal SPWM menjadi sinyal sinusoida sekaligus penaik tegangan output digunakan trafo step-up 24V/220V 10A. Hasilnya berupa inverter dengan luaran berupa gelombang sinusoida
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14

Satipar, Den, Pattana Intani, and Winai Jaikla. "Electronically Tunable Quadrature Sinusoidal Oscillator with Equal Output Amplitudes during Frequency Tuning Process." Journal of Electrical and Computer Engineering 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/8575743.

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A new configuration of voltage-mode quadrature sinusoidal oscillator is proposed. The proposed oscillator employs two voltage differencing current conveyors (VDCCs), two resistors, and two grounded capacitors. In this design, the use of multiple/dual output terminal active building block is not required. The tuning of frequency of oscillation (FO) can be done electronically by adjusting the bias current of active device without affecting condition of oscillation (CO). The electronic tuning can be done by controlling the bias current using a digital circuit. The amplitude of two sinusoidal outp
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15

Kourennyi, Eduard, Alexander Bulgakov, and Arkady Kolomytsev. "Methods for Evaluating the Influence of Non-Sinusidal Voltage on Capacitor Units in Power Supply Systems." Известия высших учебных заведений. Электромеханика 64, no. 2 (2021): 86–92. http://dx.doi.org/10.17213/0136-3360-2021-2-86-92.

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The problems of evaluating the EMC for capacitor units (CU) in power supply systems are considered. The admissible value of the current non-sinusoidal component for the CU was found, it corresponds to the actual standards. The dynamic model of the «supply line – CU» circuit has been substantiated. An equivalent circuit is given. A non-sinusoidal signal is considered as the sum of a sinusoidal and non-sinusoidal component. As a non-sinusoidal component, a voltage pulse noise model with oppositely polar periodic rectangular pulses and pauses was used. Two approaches to determine the useful signa
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16

Barros, João Dionísio Simões, Luis Rocha, and J. Fernando Silva. "Backstepping Control of NPC Multilevel Converter Interfacing AC and DC Microgrids." Energies 16, no. 14 (2023): 5515. http://dx.doi.org/10.3390/en16145515.

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This work introduces modified backstepping methods to design controllers for neutral point clamped (NPC) converters interfacing a DC/AC microgrid. The modified backstepping controllers are derived from a proper converter model, represented in dq coordinates, and are designed to regulate the DC voltage and to balance the two NPC converter DC capacitor voltages through a DC offset in the sinusoidal pulse width modulation (SPWM) carriers. The averaged and separated dynamics backstepping controllers also enforce nearly sinusoidal AC currents at a given power factor. The two proposed NPC converter
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17

Hussein, Taha A., and Laith A. Mohammed. "Detailed Simulink implementation for induction motor control based on space vector pulse width modulation SVPWM." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 3 (2021): 1251. http://dx.doi.org/10.11591/ijeecs.v22.i3.pp1251-1262.

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Space vector pulse width modulation (SVPWM) generates less harmonic distortion in the output voltage or currents, provides more efficient use of supply voltage and better voltage utilization compared with sine pulse width modulation (PWM). In this work, a detailed Simulink implementation for SVPWM for the open loop control of permanent magnet synchronous motor (PMSM) is presented. Results show the output of the blocks that assembles SVPWM besides the PMSM voltages and currents when exposing the motor to different load torques. The technique of SVPWM enables the load to respond to the change in
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18

Hussein, Taha A., and Laith A. Mohammed. "Detailed Simulink implementation for induction motor control based on space vector pulse width modulation SVPWM." Indonesian Journal of Electrical Engineering and Computer Science 22, no. 3 (2021): 1251–62. https://doi.org/10.11591/ijeecs.v22.i3.pp1251-1262.

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Space vector pulse width modulation (SVPWM) generates less harmonic distortion in the output voltage or currents, provides more efficient use of supply voltage and better voltage utilization compared with sine pulse width modulation (PWM). In this work, a detailed Simulink implementation for SVPWM for the open loop control of permanent magnet synchronous motor (PMSM) is presented. Results show the output of the blocks that assembles SVPWM besides the PMSM voltages and currents when exposing the motor to different load torques. The technique of SVPWM enables the load to respond to the change in
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19

Samikannu, Ravi, R. Rohini, V. Sampath Kumar, and Vitaliy Mezhuyev. "Design and Development of Shunt Active Filter Using MATLAB for Minimization of Harmonics." International Journal of Engineering & Technology 7, no. 3.10 (2018): 179. http://dx.doi.org/10.14419/ijet.v7i3.10.15655.

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Nonlinear loads draw non sinusoidal current and voltage from the utility. These non-sinusoidal current and voltages created due to nonlinear loads are called harmonics. The harmonic voltage and current disturbs the system back and creates big power quality problem. Therefore in order to mitigate harmonic problems different mechanisms are used. In this work as introduction different power quality problems, harmonics and their mitigation techniques/filters are presented and discussed. Between the different ways to minimize/eliminate harmonics active power filters are most Prominent one. This res
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20

Niasar, Mohamad Ghaffarian, Xiaolei Wang, and Respicius Clemence Kiiza. "Review of Partial Discharge Activity Considering Very-Low Frequency and Damped Applied Voltage." Energies 14, no. 2 (2021): 440. http://dx.doi.org/10.3390/en14020440.

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When detecting the presence of partial discharge (PD) activity in the insulation system in high-voltage equipment, the excitation voltages at variable frequency have been widely used instead of power-frequency (50/60 Hz) sinusoidal voltage in order to reduce the charging power. This work reviews the relevant research on PD activity at very low frequency (VLF) method, including sinusoidal or cosine-rectangular voltage shape, and damped AC (DAC) method. Based on the research history and development status, some major PD characteristics, such as PD inception voltage (PDIV), PD amplitude, PD charg
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21

Bayard, J. "Three-phase, voltage controlled sinusoidal oscillator." Review of Scientific Instruments 73, no. 4 (2002): 1914–17. http://dx.doi.org/10.1063/1.1458064.

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22

Fujimaki, Tadao, Katsumi Ohniwa, and Takashi Honda. "Voltage Controlled 3-Phase Sinusoidal Oscillator." IEEJ Transactions on Electronics, Information and Systems 116, no. 12 (1996): 1420–21. http://dx.doi.org/10.1541/ieejeiss1987.116.12_1420.

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23

Nigim, K., and G. Heydt. "A Sinusoidal PWM Series Voltage Regulator." Electric Power Components and Systems 30, no. 12 (2002): 1235–47. http://dx.doi.org/10.1080/15325000290085497.

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24

Popa, Gabriel Nicolae, and Corina Maria Diniș. "Analogue Computation Converter for Nonhomogeneous Second-Order Linear Ordinary Differential Equation." Computation 12, no. 8 (2024): 169. http://dx.doi.org/10.3390/computation12080169.

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Among many other applications, electronic converters can be used with sensors with analogue outputs (DC voltage). This article presents an analogue computation converter with two DC voltages at the inputs (one input changes the frequency of the output signal, another input changes the amplitude of the output signal) that provide a periodic sinusoidal signal (with variable frequency and amplitude) at the output. On the basis of the analogue computation converter is a nonhomogeneous second-order linear ordinary differential equation which is solved analogically. The analogue computation converte
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25

Durafe, Asha. "MatlabSimulink Model of Sinusoidal PWM For Three-Phase Voltage Source Inverter." International Journal of Trend in Scientific Research and Development Volume-2, Issue-6 (2018): 753–55. http://dx.doi.org/10.31142/ijtsrd18614.

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26

Ionita, Valentin, Lucian Petrescu, and Emil Cazacu. "Improved estimation of iron losses for non-sinusoidal voltages." COMPEL - The international journal for computation and mathematics in electrical and electronic engineering 37, no. 5 (2018): 1698–706. http://dx.doi.org/10.1108/compel-12-2017-0527.

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Purpose The electrical machines connected to modern electric power grids are non-sinusoidal excited, and their augmented losses, including iron losses, limit their working characteristics. This paper aims to propose a prediction method for iron losses in non-oriented grains (NO) FeSi sheets under non-sinusoidal voltage, involving an inverse classical Preisach hysteresis model and the time-integration of each loss component. Design/methodology/approach The magnetic history management in inverse Preisach model is optimized and a numerical Everett function is identified from measured symmetrical
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27

Neretti and Ricco. "Self-Tuning High-Voltage and High-Frequency Sinusoidal Power Supply for Dielectric Barrier Discharge Plasma Generation." Electronics 8, no. 10 (2019): 1137. http://dx.doi.org/10.3390/electronics8101137.

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In this paper a high-voltage sinusoidal power supply controlled by Arduino DUE micro-controller is described. This generator can feed a dielectric barrier discharge (DBD) load with sinusoidal voltages up to 20 kV peak and frequencies in the range 10–60 kHz, with a maximum output power of 200 W. Output voltage can be produced either in a continuous mode, or with on/off modulation cycles, according to treatment/application requirements. This power source is equipped with on-board diagnostics used to measure the output voltage and the charge delivered to the load. With a sample frequency of 500 k
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28

Petrovic, Goran, Juraj Alojzije Bosnic, Goran Majic, and Marin Despalatovic. "A Design of PWM Controlled Calibrator of Non-Sinusoidal Voltage Waveforms." Energies 12, no. 10 (2019): 1966. http://dx.doi.org/10.3390/en12101966.

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Power quality conditions in electrical power networks have drastically changed in recent years. A number of electrical devices and power generators that are the main sources of disturbances is ever increasing. Thus, the need for calibrators of different electrical equipment that will be able to generate non-sinusoidal voltages and/or currents has proportionally increased. This paper presents a simple, unconventional approach of generating voltage harmonics, which do not rely on digital-to-analog (D/A) boards and power amplifier to amplify low-voltage signals. A fundamental part of the calibrat
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29

Kaczmarek, Michal, and Ernest Stano. "Application of the Sinusoidal Voltage for Detection of the Resonance in Inductive Voltage Transformers." Energies 14, no. 21 (2021): 7047. http://dx.doi.org/10.3390/en14217047.

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In the case of the inductive voltage transformer (VT), the resonance phenomenon may be the main reason for its poor transformation accuracy of the non-sinusoidal voltage. This problem mainly results from the leakage inductance and the parasitic capacitance of its primary winding. The application of the sinusoidal voltage with a frequency from 20 Hz to 20 kHz presented in this study ensures proper identification of the resonance frequencies of the medium-voltage (MV) inductive VTs. The results are consistent with the values obtained in the reference condition at their nominal primary voltage. T
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30

Drabek, Tomasz, and Krzysztof Krzyściak. "Operation of the induction motor in non-sinusoidal voltage supply conditions." Science, Technology and Innovation 8, no. 1 (2020): 13–20. http://dx.doi.org/10.5604/01.3001.0014.1367.

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The paper presents the theoretical basis of the mathematical expression derived from the American standard, used to determine the thermally permissible torque load capacity of the cage induction motors when supplied with distorted voltages. The results of the measurement verification of this expression for different voltage shapes supplying the tested motor are presented. The test results confirmed the correctness of the expression when the motor is supplied with distorted voltage with a limited number of higher harmonics.
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31

Sikora, Roman, and Przemysław Markiewicz. "Analysis of Electric Power Quantities of Road LED Luminaires under Sinusoidal and Non-Sinusoidal Conditions." Energies 12, no. 6 (2019): 1109. http://dx.doi.org/10.3390/en12061109.

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The paper presents the results of laboratory tests concerning the measurements of electrical parameters of road lighting luminaires. These measurements were focused on determining the dependence of the electrical parameters of the luminaires versus the changes of the RMS (Root Mean Square) value of the supply voltage and the level of disturbances in the supply voltage. The basic electrical parameters for light-emitting diode (LED) luminaires were analysed with the option of luminous flux adjustment if it existed. During the laboratory measurements, the luminaires were powered from the Agilent
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32

Kashif, Muhammad, Muhammad kamran Liaquat Bhatti, Waqar Tahir, Muhammad Usman Iqbal, Muhammad Usman, and Safdar Raza. "Harmonics Detection and its Mitigation in a Doubly Fed Induction Generator based Power System." Pakistan Journal of Engineering and Technology 3, no. 2 (2020): 189–93. http://dx.doi.org/10.51846/vol3iss2pp189-193.

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Ideally, electric supplying companies are projected to convey sinusoidal voltage having the frequency of constant rate, while the consumers are expected to extract the current in sinusoidal forms with power factor nearly equal to unity. But extensive applications of equipment causing the production of harmonics in domestics and industrial appliances causes some problems in the smooth flow of current and voltage. Especially the usage of non-linear loads is causing the distortion of electric voltage and currents in the power system. Due to these non-sinusoidal flows of voltage and current (harmo
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33

VELI, Yelda, Claudia SĂVESCU, Alexandru-Mihail MOREGA, and Daniel COMEAGĂ. "NUMERICAL ANALYSES ON THE RESPONSES OF UNIMORPH AND BIMORPH PIEZOELECTRIC HARVESTERS IN TIME DOMAIN." ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) 2022, no. 1 (2023): 1–7. http://dx.doi.org/10.36801/apme.2022.1.14.

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The paper presents the assessment of the electric output rendered by a unimorph and a bimorph piezoelectric harvester, with one and two active piezoceramic wafers, using numerical simulations. Expected sinusoidal voltages were obtained in a time-dependent study, with a time step corresponding to the eigenfrequency found after conducting an Eigenfrequency study. The terminal voltages obtained agree with the Euler-Bernoulli beam theory and with the distance of the piezoelectric layers from the neutral fiber. By adding an electric circuit node to the electric field problem to form a closed intern
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34

Itoh, Ryozo, and Kouichi Ishizaka. "Soft-Switched Voltage-Doubler Sinusoidal Rectifier with Balanced Output Capacitor Voltages." IEEJ Transactions on Industry Applications 125, no. 3 (2005): 297–98. http://dx.doi.org/10.1541/ieejias.125.297.

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35

Kasprzak, A., M. Orlikowski, and D. Brodecki. "Operation of voltage transformer in grids with distorted signals." Bulletin of the Polish Academy of Sciences: Technical Sciences 59, no. 4 (2011): 551–54. http://dx.doi.org/10.2478/v10175-011-0067-1.

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Operation of voltage transformer in grids with distorted signals Non-sinusoidal currents and voltages caused by nonlinear loads appear in power grids more and more frequently. Determination of the voltage transformer accuracy in such conditions makes a problem. Firstly, due to lack of definition of errors for distorted signals and secondly, typical measurement bridges do not accept higher harmonics. In the paper, the new definition of transformation error for distorted voltages has been proposed and some measurement results have been presented.
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36

Shestakov, I. V., and N. R. Safin. "Modernization of a frequency-controlled asynchronous electric drive system." Journal of «Almaz – Antey» Air and Space Defence Corporation, no. 2 (June 30, 2019): 25–33. http://dx.doi.org/10.38013/2542-0542-2019-2-25-33.

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The paper introduces the results of mathematical simulation of the operating modes of an asynchronous motor when powered by a sinusoidal voltage source and a width-modulated voltage pulse source. The study shows the possibilities of increasing the energy efficiency of an asynchronous electric drive. Findings of research show the feasibility of studying the switching of the motor power source from a pulse width-modulated voltage to a sinusoidal voltage source in the nominal operating mode in order to increase the energy efficiency of the electric drive
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37

R., Palanisamy, Singh Gaurav, Das Priyanka, Selvabharathi D., Sinha Sourav, and Nag Arnab. "Design and Simulation of Novel 11-level Inverter Scheme with Reduced Switches." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 5 (2018): 3536–43. https://doi.org/10.11591/ijece.v8i5.pp3536-3543.

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This work recommends the performance of coupled inductor based novel 11-level inverter with reduced number of switches. The inverter which engender the sinusoidal output voltage by the use of split inductor with minimised total harmonic distortion (THD). The voltage stress on each controlled switching devices, capacitor balancing and switching losses can be reduced. The proposed system which gives better controlled output current and improved output voltage with moderate THD value. The switching devices of the system are controlled by using multicarrier sinusoidal pulse width modulation algori
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Jiang, Y., and J. Pan. "Single phase full bridge inverter with coupled filter inductors and voltage doubler for PV module integrated converter system." Bulletin of the Polish Academy of Sciences: Technical Sciences 57, no. 4 (2009): 355–61. http://dx.doi.org/10.2478/v10175-010-0138-8.

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Single phase full bridge inverter with coupled filter inductors and voltage doubler for PV module integrated converter systemThis paper presents a single phase full bridge inverter with coupled filter inductors and voltage doubler for PV module integrated converter (MIC) system. In DC/DC stage, full bridge circuit with high frequency sinusoidal pulse width modulation control is used, and high frequency transformer with voltage doubler rectifier circuit to increase conversional ratio is adopted. Finally, at the conversion end the rectified sinusoidal waveforms is generated. The coupled filter i
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39

Timsi and Dr Naresh Kumar Yadav. "Harmonics Distortion in Distribution Systems: A Review of Non–Linear Load Effects and Solutions." International Journal of Enhanced Research In Science Technology & Engineering 13, no. 08 (2024): 90–95. http://dx.doi.org/10.55948/ijerste.2024.0810.

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Alinear load shows current corresponding to the applied voltage, while a "non-linear" load has varying impedance with voltage, prompting non-sinusoidal current in any event when associated with sinusoidal voltage. Harmonic current in non-sinusoidal current blends in with power distribution framework impedance, causing voltage distortion affecting both the framework and associated loads. Expanded utilization of power electronics and time-changing nonlinear loads in industry prompts serious electrical cable contamination, corrupting power supply quality, and effectiveness, and causing overheatin
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Vlasenko, Ruslan, and Olexiy Bialobrzeski. "Study of three-phase active power filter operation using non-sinusoidal voltage." Odes’kyi Politechnichnyi Universytet. Pratsi, no. 1 (April 27, 2016): 90–100. http://dx.doi.org/10.15276/opu.1.48.2016.11.

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D., Karthikeyan, Palanisamy R., Vijayakumar K., Velu A., and Selvabharathi D. "Parallel Connected VSI Inverter Using Multi-Carrier Based Sinusoidal PWM Technique." TELKOMNIKA Telecommunication, Computing, Electronics and Control 15, no. 4 (2017): 1625–31. https://doi.org/10.12928/TELKOMNIKA.v15i4.6477.

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This paper explains the simulation and modelling of Parallel operation of VSI inverter using multicarrier based PWM technique. By this proposed method three level inverter output voltages generated instead of using multilevel inverter or two level dual VSI inverter. This system employs single dc voltage source, which gives supply to both VSI inverter by using parallel connection. The multi-carrier based pulse width modulation technique affianced to control the inverter power switches. The proposed system offers improved output voltage, better current control and reduced harmonic distortion. Th
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Dai, Shen, Zhiyao Ling, Han Gong, and Kunwei Zheng. "A Low-Power Electrothermal Flexible Actuator with Independent Heating Control for Programmable Shape Deformation." Micromachines 16, no. 4 (2025): 456. https://doi.org/10.3390/mi16040456.

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Flexible actuators hold significant promise for applications in intelligent robotics, wearable devices, and biomimetic systems. However, conventional actuators face challenges such as high driving voltages, inadequate deformation control, and limited deformation modes, which hinder complex programmable dynamic deformations. This study presents an electrothermal actuator based on a conductive silver paste/Kapton/PDMS composite structure, enabling precise and adjustable deformation through programmable thermal control. Experimental results show that the actuator achieves a large-angle bending (∼
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43

Bolmusov, Yu D., and V. A. Martinov. "Reference calibrator of electrical voltage in the frequency range 0.1–30.0 MHz." Izmeritel`naya Tekhnika, no. 4 (June 26, 2024): 62–68. http://dx.doi.org/10.32446/0368-1025it.2024-4-62-68.

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The park of high-precision measuring instruments of alternating voltage – working standards of the 1st and 2nd category in the frequency range 0.1–30.0 MHz is considered. It is noted that thermoelectric voltage converters, which were developed more than 30 years ago, have exhausted their life and do not meet modern operational requirements, are used as a working standards of the 1st category without alternative. An alternative to sets of thermoelectric converters in the frequency range 0.1–30.0 MHz can be AC voltage calibrators. However, in the specified frequency range, there are no AC voltag
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Reddy, Ch Lokeshwar, P. Satish Kumar, and M. Sushama. "Performance Comparison of Star Connected Cascaded STATCOM Using Different PWM Techniques." International Journal of Power Electronics and Drive Systems (IJPEDS) 8, no. 3 (2017): 1303. http://dx.doi.org/10.11591/ijpeds.v8.i3.pp1303-1319.

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<p><span>Five control algorithms are presented in this paper for STATCOM that meets the requirement of load reactive power and correspondingly voltage balancing of isolated dc capacitors for H-bridges. The control techniques used for an inverter in this paper are Sinusoidal Phase Shifted Carrier (SPSC) PWM, Sinusoidal Phase Disposition (SPD) PWM Third Harmonic Injected Phase Shifted Carrier (THIPSC) PWM, Space Vector Phase Shifted Carrier (SVPSC) PWM, and Space Vector Phase Disposition (SVPD) PWM techniques. The STATCOM performance for the different load changes is simulated in MAT
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45

Savenko, A. E., and P. S. Savenko. "Features of operation of ship electrical power systems with electrical propulsion systems." Power engineering: research, equipment, technology 24, no. 3 (2022): 91–100. http://dx.doi.org/10.30724/1998-9903-2022-24-3-91-100.

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THE PURPOSE. Consider the issue of the presence of distortions in the form of sinusoidal voltage and current in autonomous electrical power systems with electrical propulsion systems, built on the principle of the unified electric power system. Compare the results of the study of voltage distortion for electrical power systems with electrical propulsion systems of various structures and give recommendations for their application.METHODS. For research, unified electric power systems with DC electrical propulsion systems on the Yeysk ferry and alternating current on the asymmetric icebreaker Bal
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Starikov, Alexsandr V., Sergey L. Lisin, Olga S. Belyaeva, and Viktor A. Kirdyashev. "Method for reducing the amplitudes of higher harmonics in the output voltage of the frequency converter." Vestnik of Samara State Technical University. Technical Sciences Series 29, no. 1 (2021): 120–32. http://dx.doi.org/10.14498/tech.2021.1.9.

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Modern low-voltage frequency converters, built on the principle of stand-alone inverters with pulse-width modulation, have large amplitudes of higher harmonics in the output voltage. This adversely affects the operation of an asynchronous or synchronous motor connected to such a converter, since it causes a decrease in the efficiency of the AC machine. The analysis of the reasons for the poor harmonic composition of the output voltage of traditional inverters with sinusoidal pulse-width modulation is carried out and it is noted that the main one is the introduction of "dead" time when switchin
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Schasny, V. P., and A. I. Zhukouski. "Electromagnetic Compatibility of Compensating Devices and Converters of an Adjustable Electric Drive in Electrical Networks of Industrial Enterprises." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 65, no. 1 (2022): 37–51. http://dx.doi.org/10.21122/1029-7448-2022-65-1-37-51.

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The problems of reactive power compensation and improving the quality of electrical energy in the power supply systems of industrial enterprises are inseparable. Their relevance is due to the widespread use of electric receivers that consume reactive power and distort the quality of electrical energy in the network, as well as the implementation of new technologies, systems and equipment into production that make increased demands on the quality of electrical energy consumed. An important characteristic of the quality of electrical energy rationed by GOST 32144–2013 is the non-sinusoidal volta
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Wang, San-Fu, and Hua-Pin Chen. "New Voltage-Mode Sinusoidal Oscillators Using VDIBAs." Journal of Circuits, Systems and Computers 29, no. 04 (2019): 2050052. http://dx.doi.org/10.1142/s0218126620500528.

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This paper presents two new voltage-mode sinusoidal oscillators based on voltage differencing inverting buffered amplifier (VDIBA). The first proposed circuit exhibits independent and electronic control of oscillation condition by using the bias current of the VDIBA. The proposed configuration contains only single VDIBA, two grounded capacitors and two resistors, which are the least number of active components and the minimum number of passive components necessary for realizing voltage-mode oscillator topology. The second proposed circuit exhibits independent and electronic control on the cond
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TRETYAKOV, A. N., and G. S. KUDRYASHEV. "DETERMINATION OF THE PREDICTED VALUES OF NON-SINUSOIDAL VOLTAGE BASED ON STATISTICAL ANALYSIS." Elektrotekhnologii i elektrooborudovanie v APK 71 (2024): 21–26. http://dx.doi.org/10.22314/2658-4859-2024-71-3-21-26.

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A significant problem of ensuring the quality of electricity, including the sinusoidal voltage in the distribution grids of energy systems and power supply grids, arose with the growth and use of equipment with a nonlinear load characteristic. Modernization of production and an increase in its energy efficiency are associated with the use of such electrical equipment. In this regard, in the last decade, the problem of the higher harmonics has become one of the important consequences of global innovative development throughout the world and in Russia in particular. However, the creation of cond
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El-Sabbe, A. "Sinusoidal AC Voltage Regulator Using PWM Technique." ERJ. Engineering Research Journal 24, no. 3 (2001): 25–33. http://dx.doi.org/10.21608/erjm.2001.71046.

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