scholarly journals Design, Simulation and Analysis of Single Phase AC to DC Cuk Converter Fed Led Applications

2020 ◽  
pp. 49-56
Author(s):  
R. Kalai Priya
Keyword(s):  
Power Factor ◽  
Fuzzy Logic Control ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Paper Analysis ◽  
Unity Power Factor ◽  
Cuk Converter ◽  
Logic Control ◽  
Bridge Rectifier ◽  
Hysteresis Control

This paper analysis with PFC Cuk converter fed LED drive to overcome the power factor problems. The proposed circuit topology consists of diode bridge rectifier and Cuk converter. Cuk converter is operated to work under CCM mode. This combination of DBR and PFC converter is used to feed a LED drive. This converter is simulated in MATLAB software. This Cuk converter provides better results such as unity power factor and low current harmonic distortion with fuzzy logic control and hysteresis control.

scholarly journals Performance Between PFC Cuk and Bridgeless PFC Cuk Converter with Various Output Voltages

2019 ◽  
Vol 8 (2S2) ◽  
pp. 41-46
Keyword(s):  
Low Power ◽  
Power Factor ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Input Current ◽  
Unity Power Factor ◽  
Cuk Converter ◽  
Maximum Current ◽  
Simulation Results ◽  
Power Application

This paper presents about the comparison between single-phase PFC Cuk converter and bridgeless PFC (BPFC) Cuk converter for low power application. This study attempts to investigate the characteristics of conventional and bridgeless PFC Cuk converter structures with three different output voltages and verified by the simulation results. The BPFC Cuk converter provides a lower Total Harmonic Distortion (THD) of input current than the conventional PFC Cuk converter. However, the conventional PFC Cuk converter has advantage of less maximum current stress at components compared to the BPFC Cuk converter. Conventional and BPFC Cuk converter can achieve an approximately unity power factor (PF).

scholarly journals Single Phase AC to DC Isolated ZETA Power Factor Correction Converter fed LED drives

2020 ◽  
pp. 73-80
Author(s):  
S. T. Siddharthan ◽  
Andrew Jones ◽  
S. Kathikeyan
Keyword(s):  
Power Factor ◽  
High Frequency ◽  
Single Phase ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Supply System ◽  
Unity Power Factor ◽  
Current Harmonic ◽  
High Frequency Transformer ◽  
Bridge Rectifier

This paper deals with PFC-isolated Zeta converter fed LED drive to overcome the power factor problems. The proposed circuit topology consists of diode bridge rectifier and isolated Zeta converter with high frequency transformer. A single –phase supply is used to feed a DBR followed by a filter to avoid any switching ripple in DBR and the supply system. An isolated Zeta converter is operated to work under DCM mode. This combination of DBR and PFC converter is used to feed a LED drive. This converter is simulated in MATLAB platform. This converter provides better results such as unity power factor and less current harmonic distortion.

scholarly journals Simulation of single phase photovoltaic system based on fuzzy logic control with multilevel inverter

2019 ◽  
Vol 107 ◽  
pp. 02003 ◽  
Author(s):  
Ezzaldden Raweh ◽  
Wei Pi ◽  
Omar Busati ◽  
Abdul Rehman ◽  
Saif Mubbarak ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Power Systems ◽  
Fuzzy Logic Control ◽  
Single Phase ◽  
Pulse Width Modulation ◽  
Harmonic Distortion ◽  
Optimal Operation ◽  
Multilevel Inverter ◽  
Photovoltaic System ◽  
Logic Control

To control the solar power, reliability and stability are two main challenges. In addition, the total harmonic distortion (THD) must be within limits for optimal operation. In an inverter, the harmonics are produced during the conversion of DC power to AC power, which will affect the power electronic devices. Therefore, to overcome such challenges in high voltage and high power systems multilevel inverter (MLI) topology is more useful. Such type of inverters uses various DC voltage levels to generate the stepped AC at its output, approaching the sinusoidal shape. The cascaded H-bridge, capacitor-clamped, and diode-clamped are the most commonly used multilevel inverters topologies. For photovoltaic (PV) usage, cascaded H-bridge (CHB) MLI is more adaptive among the three topologies, where for each H-bridge unit; each PV model behaves as an isolated DC source. This paper specifically focused on the simulation of PV power as a source to the system and displayed the potential of a single-phase 11-level CHB inverter. For switching the IGBT devices, sinusoidal pulse width modulation (SPWM) is applied. Moreover, the fuzzy logic control (FLC) is introduced to improve the power quality. FLC reduce the THD via finding the appropriate set of IGBT switch signals. To show the improvement in the operation and reduction in the complex harmony signal effects of the CHB 11-level inverter, the proposed system is designed in Matlab/Simulink software. Finally, the results show that the dynamic behavior of the FLC is much better than the traditional proportional integral derivative (PID) controller.

Bridgeless Isolated Cuk PFC Implementation using PID and Neural Controller

2016 ◽  
Vol 2 (1) ◽  
pp. 88
Author(s):  
R. Pireethi ◽  
R. Balamurugan
Keyword(s):  
High Voltage ◽  
Power Factor ◽  
Bldc Motor ◽  
Proportional Integral Derivative ◽  
Unity Power Factor ◽  
Neural Controller ◽  
Cuk Converter ◽  
Conduction Loss ◽  
Bridge Rectifier ◽  
Conduction Mode

<p> The comparision of Bridgeless  Isolated Cuk converter using Proportional  Integral  Derivative (PID) and Neural controller (NC) is presented in this paper. Due to Diode Bridge Rectifier (DBR) conventional converters suffer from high conduction loss. Bridgeless Cuk converter is used  to eliminate the issues. Bridgeless   Isolated (BLI)  Cuk  converter is used to withstand high voltage. Compare to Continuous Conduction Mode (CCM) Discontinuous Conduction Mode (DCM) utilize less number of sensors. To obtain unity power factor it is used to  work in  DCM mode. BLI Cuk Converter is implemented in  two controller PID and  Neural controller to observe  power factor. Performance of BLDC motor  is simulated  by using MATLAB/SIMULINK software. </p>

A Novel Power Factor Correction Modified Bridge Less-CUK Converter for LED Lamp Applications

2016 ◽  
Vol 7 (3) ◽  
pp. 880
Author(s):  
Saravanan D ◽  
Gopinath M
Keyword(s):  
Power Factor ◽  
Power Supply ◽  
Power Factor Correction ◽  
Harmonic Distortion ◽  
Quality Indices ◽  
Power Utility ◽  
Cuk Converter ◽  
Bridge Rectifier ◽  
Converter Design ◽  
Efficient Power

In recent decades, several research works have been focused on the efficient Power Factor Correction (PFC) converter design in to meet the power supply efficiency. Conventional PFC cuk converter widely uses the full bridge rectifier which had resulted in overall increase of converter losses and inefficiency. This paper is intended to develop a novel PFC Bridgeless cuk converter for LED lamp applications. In this work, the limitations of the conventional PFC Cuk converter are resolved. The major contributions of the proposed work include the minimization in the number of conduction devices and minimization of the power utility devices which in turn resulted in minimal losses and better efficiency. Moreover, the proposed converter works in DCM which requires only one voltage sensor which results in reduced cost. The proposed Modified BL Cuk converter (MBL-CUK) for LED lamp is simulated in MATLAB and the corresponding results show the better power quality indices such as power factor and Total Harmonic Distortion.

scholarly journals Input switched closed-loop single phase ĈUK AC to DC converter with improved power quality

2019 ◽  
Vol 10 (3) ◽  
pp. 1373
Author(s):  
Md. Shamsul Arifin ◽  
Nur Mohammad ◽  
Mohammad Ibrahim Khalil ◽  
Mohammad Jahangir Alam
Keyword(s):  
Power Factor ◽  
Single Phase ◽  
Closed Loop ◽  
Harmonic Distortion ◽  
Open Loop ◽  
Current Control ◽  
Control Loop ◽  
Cuk Converter ◽  
Wide Range ◽  
A Current

<span lang="EN-US">A new closed loop AC to DC ĈUK converter is presented in this paper. The conventional ĈUK AC to DC converter has no feedback circuit. Thereby, the output voltage of the converter changes while changing the load. The proposed closed loop converter can regulate voltage with the variation of load over a wide range. Moreover, the power factor and Total Harmonic Distortion (THD) of the supply side current found quite satisfactory from this closed loop ĈUK converter. The converter operates in four steps with a different combination of voltage polarities and switching states. The feedback path consists of a voltage control loop and a current control loop. The closed loop ĈUK converter in this study is compared with the open loop version. Additionally, the comparison is made with the conventional converter of the same topology. The effectiveness in terms of power factor and THD of the proposed converter is verified using simulation results.</span>

scholarly journals Track the maximum power of a photovoltaic to control a cascade five-level inverter a single-phase grid-connected with a fuzzy logic control

2019 ◽  
Vol 10 (4) ◽  
pp. 1863
Author(s):  
Arckarakit Chaithanakulwat
Keyword(s):  
Fuzzy Logic ◽  
Fuzzy Logic Control ◽  
Single Phase ◽  
Harmonic Distortion ◽  
Sine Wave ◽  
Harmonic Spectrum ◽  
Maximum Power ◽  
Logic Control ◽  
Maximum Power Tracking ◽  
Sine Signal

<p>This research presents tracking the maximum power of a<em> </em>photovoltaic to control a five-level inverter, a cascade type connecting a single-phase grid-connected system with a fuzzy logic control model. Maximum power tracking control In this research, the principle of controlling the maximum current amplitude of the photovoltaic multiplied by the sine signal per unit that used as a reference current compared to the grid current. Signal comparison with the PID controller allows the creation of five levels of PWM of cascade control of five-level inverter connects single-phase grids. The results of the simulation test using the program MATLAB/Simulink to compare with the generated prototype found that the fuzzy logic principle was used to control the maximum power tracking conditions of the P&amp;O method, when the amount of radiation light intensity decreases suddenly, making it possible to track the maximum power of the photovoltaic. Also, when<em> </em>the inverter connected to the grid by controlling the power<em> </em>angle to compare results between the simulation and the prototype — found that the current flowing into the grid increases according to the power angle control. Resulting in a nearby waveform, sine wave and an out of phase angle to the grid voltage because the system is in the inverter mode, and the harmonic spectrum of the grid currently has total harmonic distortion (THD) is reduced as an indication of the proposed system can be developed and applications.</p>

scholarly journals Analysis of Maximum Load Unbalancing Limits of Cascaded H-Bridge Rectifier Under Unity Power Factor

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 102530-102541
Author(s):  
Zhixuan Gao ◽  
Cong Wang ◽  
Junqing Fu ◽  
Bangbang He ◽  
Chen Feng ◽  
...  
Keyword(s):  
Power Factor ◽  
Maximum Load ◽  
Unity Power Factor ◽  
Bridge Rectifier
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