Investigation of harmonic distortion in line and load currents of the sinusoidal pulse-width modulated single-phase AC chopper

2014 ◽  
Author(s):  
A. N. Arvindan ◽  
J. Simon Alphonse
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Pulse Width Modulated

scholarly journals Performance evaluation and comparison of diode clamped multilevel inverter and hybrid inverter based on PD and APOD modulation techniques

2019 ◽  
Vol 8 (2) ◽  
pp. 143
Author(s):  
N. Susheela ◽  
P. Satish Kumar
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Control Method ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Multilevel Inverters ◽  
Number Of Components ◽  
Modulation Techniques ◽  
Modulation Methods

<p>The popularity of multilevel inverters have increasing over the years in various applications without use of a transformer and has many benefits. This work presents the performance and comparative analysis of single phase diode clamped multilevel inverter and a hybrid inverter with reduced number of components. As there are some drawbacks of diode clamped multilevel inverter such as requiring higher number of components, PWM control method is complex and capacitor voltage balancing problem, an implementation of hybrid inverter that requires fewer components and less carrier signals when compared to conventional multilevel inverters is discussed. The performance of single phase diode clamped multilevel inverter and hybrid multilevel inverter for seven, nine and eleven levels is performed using phase disposition, alternate phase opposition disposition sinusoidal pulse width modulation techniques. Both the multilevel inverter are implemented for the above mentioned multicarrier based Pulse Width Modulation methods for R and R-L loads.  The total harmonic distortion is evaluated at various modulation indices. The analysis of the multilevel inverters is done by simulation in matlab / simulink environment.</p>

scholarly journals Real time FPGA Implementation of PWM Chopper Fed Capacitor Run Induction Motor

2018 ◽  
Vol 7 (3) ◽  
pp. 138
Author(s):  
N. Murali ◽  
V. Balaji
Keyword(s):  
Induction Motor ◽  
Phase Angle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Performance Enhancement ◽  
Harmonic Distortion ◽  
Input Power ◽  
Pulse Width Modulated ◽  
Modulation Technique ◽  
Sinusoidal Pulse Width Modulation

<span>This paper presents the performance enhancement of capacitor run induction motor by pulse width modulated AC chopper.The phase angle control faces severe shortfall in the performance improvement for larger triggering angles. In this paper the comparison of phase angle control and sinusoidal pulse width modulation technique is encountered for effective speed control of single phase capacitor run induction motor. The necessary parameters are taken into considerations are higher efficiency, lesser total harmonic distortion and high input power factor. The results are compared by using the simulations using matlab Simulink environment. The validation of result in hardware is implemented using Field programmable gate array for sinusoidal pulse width modulation technique.</span>

scholarly journals Real time FPGA Implementation of PWM Chopper Fed Capacitor Run Induction Motor

2018 ◽  
Vol 7 (3) ◽  
pp. 132
Author(s):  
N. Murali ◽  
V. Balaji
Keyword(s):  
Induction Motor ◽  
Phase Angle ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Performance Enhancement ◽  
Harmonic Distortion ◽  
Input Power ◽  
Pulse Width Modulated ◽  
Modulation Technique ◽  
Sinusoidal Pulse Width Modulation

<span>This paper presents the performance enhancement of capacitor run induction motor by pulse width modulated AC chopper.The phase angle control faces severe shortfall in the performance improvement for larger triggering angles. In this paper the comparison of phase angle control and sinusoidal pulse width modulation technique is encountered for effective speed control of single phase capacitor run induction motor. The necessary parameters are taken into considerations are higher efficiency, lesser total harmonic distortion and high input power factor. The results are compared by using the simulations using matlab Simulink environment. The validation of result in hardware is implemented using Field programmable gate array for sinusoidal pulse width modulation technique.</span>

scholarly journals Limitations of Harmonics Control in Power Converters

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 739
Author(s):  
Denis Sušin ◽  
Mitja Nemec ◽  
Vanja Ambrožič ◽  
David Nedeljković
Keyword(s):  
Pulse Width ◽  
Single Phase ◽  
Power Converters ◽  
Power Converter ◽  
Electronic Systems ◽  
Experimental Setup ◽  
Power Electronic ◽  
Harmonic Current ◽  
Maximal Amplitude ◽  
Pulse Width Modulated

In this paper, we analyze the constraints of harmonics control in power electronic systems. Based on an equivalent circuit of a typical power converter application and its parameters, we have derived an analytical expression for calculating the maximal amplitude of controlled harmonic current. This expression has been successfully verified on an experimental setup, designed around a single-phase grid-connected bidirectional inverter. The pulse width modulated (PWM) driven inverter has been controlled by multiple resonant controllers, each of them providing individual control of a selected harmonic current. By using the derived expression and taking into account the parameters of converter application, power electronics designers could quickly determine the limitations of harmonics control.

scholarly journals Single-Phase Pulse Width Modulated Rectifier

10.14311/1025 ◽  
2008 ◽  
Vol 48 (3) ◽  
Author(s):  
J. Bauer
Keyword(s):  
Side Effects ◽  
Phase Angle ◽  
Pulse Width ◽  
Single Phase ◽  
Reactive Power ◽  
Pwm Rectifier ◽  
Pulse Width Modulated ◽  
Electric Parameters ◽  
Pwm Rectifiers

The PWM rectifier is a very popular topic nowadays. With the expansion of electronics, conversion of electric parameters is also needed. For this purpose the side effects of passive rectifiers, e.g. production of harmonics and reactive power, must be taken into account. All these side effects fall away with the application of PWM rectifiers. This paper compares the differences between a phase angle controlled rectifier and a PWM rectifier. 

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