Study of Power Quality Phenomenon Based on Design and Simulation of Boost Type PFC Converters

2020 ◽  
Vol 07 (03) ◽  
pp. 6-10
Author(s):  
Samridhi Vijay ◽  
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Supply Voltage ◽  
Harmonic Distortion ◽  
Current Mode ◽  
Control Technique ◽  
Non Linear ◽  
Present Design ◽  
Converter Topology ◽  
Average Current

This paper present design and simulation of boost type Power Factor Correction (PFC) converter which improved the power quality. With the enormous development in the usage of power converters circuits like rectifiers which is non linear loads, the current drawn by these non- linear loads will not follow the supply voltage (i.e. non simulation). This results in high Total Harmonic Distortion (THD) and poor Power Factor (PF). Hence there is a need of converter topology to improve the PF and reduce line current harmonic. Boost type PFC converters is most popular topology for improving the PF in supply AC side. Average Current Mode (ACM) control technique is employed to control the boost converter in Continuous Conduction Mode (CCM). Simulation of proposed system is carried out using MATLAB/ Simulink platform.

scholarly journals Improved Power Quality Switched Inductor CUK Convertor for Variable Speed DC Motor with PIC Microcontroller

2019 ◽  
Vol 8 (2) ◽  
pp. 1906-1909
Keyword(s):  
Power Quality ◽  
Power Factor ◽  
Harmonic Distortion ◽  
Current Mode ◽  
Dc Motor ◽  
Constant Current ◽  
Resistive Load ◽  
High Productivity ◽  
Analysis And Design ◽  
Continuous Current

In this paper, low current pressure and high productivity with diminished components have been used to get high step down gain. A single-staged switched inductor Cuk converter is used for correcting the power factor, Different parts of the proposed converter are analyzed in continuous current mode (CCM). Operational analysis and design equations are analyzed. The performance analyses of the proposed converter concerning power quality such as voltage total harmonic distortion (THD), current THD and complete power factor are done with different kinds of load, for example, resistive load and battery load at constant voltage (CV) and constant current (CC). It is utilized to drive a DC motor at variable speeds with the assistance of a PIC microcontroller.

scholarly journals An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter

2021 ◽  
Vol 13 (2) ◽  
pp. 505
Author(s):  
Sumaya Jahan ◽  
Shuvra Prokash Biswas ◽  
Md. Kamal Hosain ◽  
Md. Rabiul Islam ◽  
Safa Haq ◽  
...  
Keyword(s):  
Power Quality ◽  
Harmonic Distortion ◽  
Multilevel Inverter ◽  
Control Technique ◽  
Solar Pv ◽  
Pv System ◽  
Reference Tracking ◽  
Proportional Integral ◽  
Lead Compensator ◽  
Power Quality Improvement

The use of different control techniques has become very popular for controlling the performance of grid-connected photovoltaic (PV) systems. Although the proportional-integral (PI) control technique is very popular, there are some difficulties such as less stability, slow dynamic response, low reference tracking capability, and lower output power quality in solar PV applications. In this paper, a robust, fast, and dynamic proportional-integral resonance controller with a harmonic and lead compensator (PIR + HC + LC) is proposed to control the current of a 15-level neutral-point-clamped (NPC) multilevel inverter. The proposed controlled is basically a proportional-integral resonance (PIR) controller with the feedback of a harmonic compensator and a lead compensator. The performance of the proposed controller is analyzed in a MATLAB/Simulink environment. The simulation result represents admirable performance in terms of stability, sudden load change response, fault handling capability, reference tracking capability, and total harmonic distortion (THD) than those of the existing controllers. The responses of the inverter and grid outlets under different conditions are also analyzed. The harmonic compensator decreases the lower order harmonics of grid voltage and current, and the lead compensator provides the phase lead. It is expected that the proposed controller is a dynamic aspirant in the grid-connected PV system.

Implementation of Single-Phase Two-Switch Midpoint Unidirectional Multilevel Converter System

2018 ◽  
Vol 19 (4) ◽  
Author(s):  
Peethala Rajiv Roy ◽  
P. Parthiban ◽  
B. Chitti Babu
Keyword(s):  
Single Phase ◽  
Pulse Width Modulation ◽  
Low Voltage ◽  
Supply Voltage ◽  
Harmonic Distortion ◽  
Input Voltage ◽  
Open Loop ◽  
Current Control ◽  
Control Technique ◽  
Control Scheme

Abstract This paper deals with implementation of a single-phase three level converter system under low voltage condition. The frequency of the switches is made constant and involves change in ${t_{on}}$ and ${t_{off}}$ duration. For this condition the pulse width modulation control scheme for a single phase three level rectifier is developed to improve the power quality. The hysteresis current control technique is adopted to bring forth three-level PWM on the dc side of the bridge rectifier and to achieve high power factor and low harmonic distortion. Based on the proposed control scheme, the line current is driven to follow the sinusoidal current command which is in phase with the supply voltage. By using three-level voltage pattern the blocking voltage of each power device is clamped to half of the dc link voltage. The simulation and experimental results of 20W converter under low input voltage condition are shown to verify the circuit performance. Open loop simulation and hardware tests are implemented by applying a low voltage of 15 V(rms) on the input side.

Compact CMOS Analog Multiplier Free of Voltage Reference Generators

2020 ◽  
Vol 15 (3) ◽  
pp. 1-12
Author(s):  
Ana Isabela Araújo Cunha ◽  
Antonio José Sobrinho De Sousa ◽  
Edson Pinto Santana ◽  
Robson Nunes De Lima ◽  
Fabian Souza De Andrade ◽  
...  
Keyword(s):  
Supply Voltage ◽  
Harmonic Distortion ◽  
Current Mode ◽  
Input Voltage ◽  
Voltage Reference ◽  
Analog Multiplier ◽  
Voltage Range ◽  
Voltage Variation ◽  
Static Power ◽  
Four Quadrant

This work presents a CMOS four quadrant analog multiplier architecture for application as the synapse element in analog cellular neural networks. For this reason, the circuit has voltage-mode inputs and a current-mode output and the chief design targets are compactness and low energy consumption. A signal application method is proposed that avoids voltage reference generators, which contributes to reduce sensitivity to supply voltage variation. Performance analysis through simulation has been accomplished for a design in CMOS 130 nm technology with 163 µm2 total active area. The circuit features ±50 mV input voltage range, 86 µW static power and ‑28.4 dB maximum total harmonic distortion. A simple technique for manual calibration is also presented.

The Effects of Total Harmonics Distortion for Power Factor Correction at Non-Linear Load

2016 ◽  
Vol 7 (2) ◽  
pp. 551 ◽  
Author(s):  
R. A. Rani ◽  
Shakir Saat ◽  
Yusmarnita Yusop ◽  
Huzaimah Husin ◽  
F. K. Abdul Rahman ◽  
...  
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
The Other ◽  
Linear Load ◽  
Non Linear ◽  
Sinusoidal Waveform ◽  
Non Linear Load ◽  
The Relationship

This paper presents the effect of total harmonic distortion (THD) in power factor correction (PFC) at non-linear load. This study focuses on the relationship between THD and PFC. This is beacuse,the power factor affects THD. This occurs in power system as we have variety of loads, i. e linear load or non-linear load. The variety of loads will influence the sinusoidal waveform, which comes out from harmonic distortion. Thus, based on this study, we can compare the effective method in improving the power factor as it will not disturb the performance of THD. The focus of study is on the single phase load, where the voltage restriction is 240 V.  The analysis will  only focus on the consumer, which depends on the variety of non-linear load. Besides, the parameters for analysis are based on the percentage of THD and the value of power factor. The instrument for measuring the parameter is based on power factor correction device or technique. On the other hand, the method that was used for this study is based on simulation which incorporated the Multisim software. At the end of ths study, we can choose the most effective method that can be used to improve the power factor correction without disturbing the THD.

scholarly journals Average Current Mode Controlled Power Factor Correction Converter

2015 ◽  
Vol 8 (S2) ◽  
pp. 53 ◽  
Author(s):  
Sachin K. Kupati ◽  
Mukul Chavan ◽  
Sunil Bhattad ◽  
N. Arun
Keyword(s):  
Power Factor ◽  
Power Factor Correction ◽  
Current Mode ◽  
Average Current

scholarly journals Improvement of Power Quality in an Adaptive Boost PFC Converter with Generation of PWM Control Signal by Cascading Power Factor and Chaos Controller Circuits

2019 ◽  
Vol 9 (2) ◽  
pp. 5208-5216
Keyword(s):  
Feedback Control ◽  
Power Quality ◽  
Power Factor ◽  
Control Method ◽  
Current Mode ◽  
Delayed Feedback ◽  
Current Control ◽  
Delayed Feedback Control ◽  
Switching Frequency ◽  
Variable Load

This work discusses about a digital controller system for reduced effect of chaos and improved power factor of a 1-phase AC-DC converter system. It is shown that, the proposed controller technique is able to suppress the chaos at variable load condition of a boost power factor correction (BPFC) converter. Furthermore, a systematic methodology based on bifurcation diagram from tuning the controller is proposed. To achieve improved power quality in BPFC converter, combination of average and peak inductor current mode control methods are performed. In the MATLAB/SIMULINK environment, simulation circuit for the BPFC converter with average current control method is developed to improve power factor. Further, to reduce the effect of chaos produced in converter, peak inductor current mode with delayed feedback control method is adopted. At an output power of 650 W operating at 130K Hz switching frequency, this converter provides Total Harmonic Distortion (THDi ) reduction of 20% and improved Power Factor (PF) of input current compared to other conventional converter. For real time operation of the system, rapid prototyping test is carried out using DAQ (Data acquisition) board NI 6351. The delayed feedback control has a better performance than any other methods proposed earlier

scholarly journals Simulation and Analysis of a Three-phase Shunt Active Power Filter

2020 ◽  
pp. 162-166
Keyword(s):  
Power Systems ◽  
Power Quality ◽  
Harmonic Distortion ◽  
Active Power Filter ◽  
Active Power ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Three Phase ◽  
Non Linear ◽  
The Impact

This paper presents the simulation-based study and results of a three-phase shunt active power filter (SAPF) for power quality improvement. The power quality of the power systems is degraded because of the presence of non-linear loads at the consumer end. The SAPF can reduce the impact of harmonics caused by the non-linear loads. The analyzed SAPF system is modeled and simulated using MATLAB-Simulink workspace. The ultimate goal of this study is to improve the total harmonic distortion of the system as per the standards defined by IEEE-519.

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