Results 31 to 40 of about 200,578 (202)
Transistor servo system including a unique differential amplifier circuit Patent [PDF]
, 1970 Electric motor control system with pulse width modulation for providing automatic null seeking ...
Currie, J. R., Nola, F. J.
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Revue des Énergies Renouvelables, 2020 This paper presents the implementation of perturb and observe maximum power point tracking algorithm with Duty Cycle Modulation instead of pulse width modulator for photovoltaic power generators.
Theodore Louossi +3 more
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Comparative Study of Modulation Techniques for Two-Level Voltage Source Inverters
Renewable Energy and Sustainable Development, 2016 A detailed comparative study of modulation techniques for single and three phase dc-ac inverters is presented. Sinusoidal Pulse Width Modulation, Triplen Sinusoidal Pulse Width Modulation, Space Vector Modulation, Selective Harmonic Elimination and ...
Barry W. Williams +3 more
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Power supply circuit for an ion engine sequentially operated power inverters [PDF]
, 2000 A power supply circuit for an ion engine suitable for a spacecraft has a voltage bus having input line and a return line. The power supply circuit includes a pulse width modulation circuit.
Cardwell, Jr., Gilbert I.
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Collaborative Synchronization Digital Control for Double Hydraulic Cylinders
Advances in Mechanical Engineering, 2014 By researching the synchronization motion of double hydraulic cylinders controlled by high-speed on-off valve, the paper aims to solve the shortage of current hydraulic synchronization system with low synchronization precision. The flow characteristic of
Zhi-hao Liu +5 more
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Multiphase space vector pulse width modulation
IEEE Transactions on Energy Conversion, 2002 Pole-phase modulation adjusts the pole-phase ratio of an induction machine and requires a multileg, multiphase inverter. This paper analyzes an n-leg, n-phase inverter, and presents techniques for n-phase space vector pulse width modulation (SVPWM). In particular, nine-phase SVPWM is developed and implemented on a nine winding induction machine.
J. W. Kelly +2 more
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Online control of AC/AC converter based SHEPWM technique [PDF]
, 2014 Conventional online control of AC/AC converter controlled by the selective harmonic elimination pulse width modulation technique (SHEPWM) is based on storing the offline calculated switching angle values in a form of lookup table.
Darwish, M, Hashem, GM
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Symmetrical Cascaded Switched-Capacitor Multilevel Inverter Based on Hybrid Pulse Width Modulation
Energies, 2021 Multilevel inverters have been widely used in various industrial applications such as renewable energy generation and electric vehicles. An improved circuit of symmetrical cascaded switched-capacitor multilevel inverter is proposed so that the reactive ...
Lingling Cao +3 more
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Harmonic elimination by switching angle optimization technique for multilevel inverter [PDF]
, 2019 The needs for a free harmonic and high rating power source is increased to meet the required industry applications. In this project, a 7-level Cascaded H-Bridge Multilevel Inverter (CHBMLI) with two various controllers are presented.
Altayib Sahhouk, Masoud Albasheer
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Advances in Mechanical EngineeringLoad sensing technology is a typical hydraulic technology that automatically meets load requirements by adjusting the pressure and flow at the pump outlet.
Wu Jian, Ruan Jian, Ren Yan
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