scholarly journals Analysis and Comparison of Conventional and Interleaved DC/DC CUK Converter using Fuzzy Logic Controller

Author(s):  
T Sravya
Author(s):  
Alok Kumar Mishra ◽  
Akshaya Kumar Patra ◽  
Ramachandra Agrawal ◽  
Narayan Nahak ◽  
Amaresh Gantayet ◽  
...  

Author(s):  
Sanatan Kumar ◽  
Debanjan Roy ◽  
Madhu Singh

<span>This paper presents a PFC (Power Factor Correction) Cuk converter fed BLDC (Brushless DC) motor drive and the speed of BLDC motor is controlled using fuzzy logic implementation. The PFC converters are employed to enhance the power quality. The Brushless DC motor speed is under the control of DC-bus voltage of VSI-Voltage Source Inverter in which switching of low frequency is used. This helps in the electronic commutation of BLDC motors thus decreasing the switching losses in VSI. A DBR (Diode Bridge Rectifier) next to the PFC Cuk converter controls the voltage at DC link maintaining unity power factor. The characteristics of Cuk converter in four dissimilar modes of operation are studied such as continuous and discontinuous conduction modes (CCM and DCM) respectively. The entire system is simulated using Matlab/Simulink software and the simulation results are reported to verify the performance investigation of the proposed system.</span>


Electronics ◽  
2018 ◽  
Vol 7 (11) ◽  
pp. 288 ◽  
Author(s):  
Kuditi Kamalapathi ◽  
Neeraj Priyadarshi ◽  
Sanjeevikumar Padmanaban ◽  
Jens Holm-Nielsen ◽  
Farooque Azam ◽  
...  

This research work deals with a hybrid control system based integrated Cuk converter fed brushless DC motor (BLDCM) for power factor correction. In this work, moth-flame optimization (MFO) and a fuzzy logic controller (FLC) have been combined and a moth-flame fuzzy logic controller (MFOFLC) has been proposed. Firstly, the BLDC motor modeling is composed with the power factor correction (PFC) based integrated Cuk converter and BLDC speed is regulated using variable DC-Link inverter voltage which results in a low switching operation with fewer switched losses. Here, with the use of a switched inductor, the task and execution of the proposed converter is redesigned. The DBR (diode bridge rectifier) trailed by a proposed PFC based integrated Cuk converter operates in discontinuous inductor conduction mode (DICM) for achievement of better power factor. MFO is exhibited for gathering of a dataset from the input voltage signal. At that point, separated datasets are sent to the FLC to improve the updating function and minimization of torque ripple. However, our main objective is to assess adequacy of the proposed method, but the power factor broke down. The execution of the proposed control methodology is executed in the MATLAB/Simulink working platform and the display is assessed with the existing techniques.


2015 ◽  
Vol 24 (07) ◽  
pp. 1550102 ◽  
Author(s):  
P. M. Dhanasekaran ◽  
R. Balamurugan ◽  
P. Veena ◽  
R. Nithya

A new single phase bridgeless power factor correction (PFC) converter derived from CUK topology is proposed. In this new CUK converter, the absence of the front end diode bridge results in the less switching and conduction losses compared to the conventional PFC converter. The current flow in the proposed converter configuration has only two semiconductor switches and it results in less conduction loss during each interval of the switching cycle. It offers less input current ripple, less electromagnetic interference (EMI) and also protection against the starting inrush current. It is mostly preferred compared to the other PFC topologies since it has both continuous input and output currents with a reduced current ripple. The proposed converter uses the simple control strategy and is made to work in the discontinuous conduction mode (DCM) to achieve almost a unity power factor. It also offers zero current turn ON and turn OFF for power switches. The performance of the proposed PFC converter is tested in MATLAB/SIMULINK environment with fuzzy logic controller (FLC). The simulation results of the proposed new CUK PFC converter validate the effectiveness of FLC in power factor enhancement.


Author(s):  
Alok Kumar Mishra ◽  
Ramachandra Agrawal ◽  
Akshaya Kumar Patra ◽  
Jnana Ranjan Swain ◽  
Samarjeet Satapathy ◽  
...  

Author(s):  
S. Saravanan ◽  
P. Usha Rani ◽  
Mohan P. Thakre

This article discusses a transformer-free, high-efficiency DC-DC converter besides renewable energy applications. The traditional buck-boost, classic Zeta, Sepic, and Cuk converter does have the benefits of a simple design, low cost, as well as the capacity to execute voltage step-up and step-down. Conversely, because of the detrimental consequences of the parasitic constraints of the device, the voltage conversion gain of the traditional DC-DC converter is much more restricted and the efficiency is also significantly smaller, whereas this proposed converter does have a higher voltage gain and efficiency because it is used in a single power switch, resulting in reduced switching losses and voltage stress. The said converter's design is very simple, which simplifies the operation control and reduces switching and conduction losses, leading to an efficiency of 97.4 percent. This converter seems to have the same capabilities as the Zeta converter, including continuous desired output current and desired buck-boost operation. Such an article offers the operation principle and steady evaluation, as well as a comparison with other existing high step-up configurations. The proposed converter employs a fuzzy logic controller, which improves the voltage level as well as reduces the time taken to set the voltage output of a conventional PI and ANN controller, especially in comparison to the FLC controller. For deployment, Experimental Result and MATLAB/Simulink has been used, and the modeling results indicate that the proposed controller performance has improved


Author(s):  
K. Kamalapathi ◽  
Neeraj Priyadarshi ◽  
Sanjeevikumar Padmanaban ◽  
Farooque Azam ◽  
C. Umayal ◽  
...  

This research work deals hybrid control system based integrated Cuk converter fed brushless DC motor (BLDCM) for power factor correction. In this work, moth-flame optimization (MFO) and fuzzy logic controller (FLC) has been combined and moth &ndash;flame fuzzy logic controller (MFOFLC) has been proposed. Firstly, the BLDC motor modelling is composed with power factor correction (PFC) based integrated Cuk converter and BLDC speed is regulated using variable DC-Link inverter voltage which makes low switching operation with less switched losses. Here, with the use of switched inductor, the task and execution of proposed converter is redesigned. The DBR (diode bridge rectifier) trailed by proposed PFC based integrated Cuk converter operates in discontinuous inductor conduction mode(DICM) for achievement of better power factor.MFO is exhibited for gathering of dataset from the input voltage signal. At that point separated datasets is send to FLC to improve the updating function and minimization of torque ripple. However, our main objective is to assess adequacy of proposed method, the power factor is broke down. The execution of the proposed control methodology is executed in MATLAB/Simulink working platform and the display is assessed with the existing techniques.


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