Optimal harmonic reduction approach for PWM AC–AC converter using nested memetic algorithm
Sign Up to like & getrecommendations! Published in 2017 at "Soft Computing"
DOI: 10.1007/s00500-015-1979-8
Abstract: In recent decades, optimization methods have attracted the attention of researchers to solve complicated objective functions in various problems. Evolutionary optimization algorithms are the most widely used optimization tools in the past few decades. So… read more here.
Keywords: reduction approach; optimal harmonic; approach pwm; harmonic reduction ... See more keywords
Generation of square and triangular wave with independently controllable frequency and amplitude using OTAs only and its application in PWM
Sign Up to like & getrecommendations! Published in 2017 at "Analog Integrated Circuits and Signal Processing"
DOI: 10.1007/s10470-017-0971-x
Abstract: This paper presents a self-generating square/triangular wave generator using only the CMOS Operational Transconductance Amplifiers (OTAs) and a grounded capacitor. The output frequency and amplitude of the proposed circuit can be independently and electronically adjusted.… read more here.
Keywords: frequency amplitude; square triangular; circuit; pwm ... See more keywords
Investigation on adaptive pulse width modulation control for high speed on/off valve
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-020-0333-y
Abstract: High speed on/off valves (HSV) have often been used to control flow or pressure in digital hydraulic systems due to higher switching frequency. However, the dynamic performance and energy efficiency are highly affected by the… read more here.
Keywords: frequency; control; pwm; adaptive pwm ... See more keywords
Carrier-based sinusoidal pulse-width modulation techniques for flying capacitor modular multi-level cascaded converter
Sign Up to like & getrecommendations! Published in 2019 at "Heliyon"
DOI: 10.1016/j.heliyon.2019.e03022
Abstract: Carrier-based sinusoidal pulse-width modulation (PWM) techniques, such as phase disposoed PWM(PD-PWM) and phase shifted PWM (PS-PWM), are widely applied to control the modular multilevel cascaded converters (MMCC) having full H-bridge as sub-modules. This paper evaluates… read more here.
Keywords: carrier based; capacitor; pwm; flying capacitor ... See more keywords
Study on a switching-pattern hysteresis current control method based on zero voltage vector used in three-phase PWM converter
Sign Up to like & getrecommendations! Published in 2017 at "Iet Power Electronics"
DOI: 10.1049/iet-pel.2017.0109
Abstract: The conventional hysteresis current control (C-HCC) method has a fast transient response and good robust performance. However, due to interphases dependency among the three-phase currents, several shortcomings, for example, a high-switching frequency and large cycle… read more here.
Keywords: vector; three phase; hysteresis; method ... See more keywords
Carrier‐based PWM modulation strategy for dual‐output two‐stage matrix converter
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2018.6368
Abstract: In order to solve the complexity of the space vector pulse width modulation (SVPWM) strategy for dual-output two-stage matrix converter (DO-TSMC), this study proposes a carrier-based PWM (CBPWM) strategy. The topology of DO-TSMC is introduced,… read more here.
Keywords: pwm; strategy; modulation; output ... See more keywords
Hybrid PWM noise cancellation technique to reduce switching losses for two‐segment three‐phase motor
Sign Up to like & getrecommendations! Published in 2019 at "IET Power Electronics"
DOI: 10.1049/iet-pel.2019.0012
Abstract: This study proposed a novel method to eliminate the pulse width modulation (PWM) harmonics at a quite low switching frequency for the two-segment three-phase motor. Due to the PWM technique and considerations of switching losses,… read more here.
Keywords: pwm; frequency; topology; harmonics ... See more keywords
Life Model for PWM Controlled Induction Motor Insulation using Design of Experiments Method
Sign Up to like & getrecommendations! Published in 2019 at "Electric Power Components and Systems"
DOI: 10.1080/15325008.2019.1566843
Abstract: Abstract According to numerous industrial surveys, the failure rate of stator insulation is much higher for Pulse Width Modulated (PWM) controlled induction motors than for the motors with sinusoidal voltage supply. Voltage spikes, high slew… read more here.
Keywords: pwm controlled; controlled induction; insulation; pwm ... See more keywords
85 The effect of drying and warming piglets at birth on pre-weaning mortality
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Animal Science"
DOI: 10.1093/jas/skaa054.002
Abstract: Piglets are susceptible to chilling early after birth, which is a major pre-disposing factor for pre-weaning mortality (PWM). This study evaluated the effect of drying and warming piglets at birth on PWM at a commercial… read more here.
Keywords: drying warming; effect drying; warming piglets; piglets birth ... See more keywords
A Carrier-Based PWM Strategy Providing Neutral-Point Voltage Oscillation Elimination for Multi-Phase Neutral Point Clamped 3-Level Inverter
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2938623
Abstract: General pulse width modulation (PWM) model for multi-phase neutral point (NP) clamped (NPC) 3-level inverter (3LI) is described. A novel PWM strategy for $N$ -phase NPC 3LI with unconditional NP voltage balance is proposed as… read more here.
Keywords: phase; pwm; pwm strategy; neutral point ... See more keywords
Continuous Multi-Scroll Chaotic PWM and its Chaotic Signal Selection Method for EMI Suppression of Power Converters
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3014407
Abstract: Chaotic pulse width modulation (PWM) technique has been applied to suppress electromagnetic interference (EMI) in power converters. However, traditional discrete chaotic PWM has the shortcoming that the spreading spectrum distribution is triangular in shape and… read more here.
Keywords: pwm; chaotic pwm; method; multi scroll ... See more keywords