Cuk converter design pdf

In this paper, design of a robust cascade controller for a cuk converter is investigated. Cuk converter,cuk converter design,cuk converter matlab simulink model,cuk converter design in matlab,cuk converter design pdf,design of cuk converter powered by pv array,design of isolated cuk converter,modeling analysis and design of switching converters cuk. Boost cuk converter using a single controlled power. Cuk converter is a switching regulator which yields a variable output voltage from a constant dc supply. It is like a buckboost converter in that input and output polarities are reversed, but it has the advantage of low ripple current at both input and output. The nonisolated cuk converter is a dcdc power converter that, like a buckboost converter, can produce an output voltage vout magnitude that is either greater or less than the input voltage vin magnitude. An hybrid boost cuk converter, integrated with a photovoltaic array, is proposed.

This shows that the openloop system cannot reject disturbances on the input voltage vg. Subsystem of open loop cuk converter vin 12 subsystem d vg il1 il2 v1 scope pulse. Controller design for cuk converter using model order reduction. It is an inverting converter, so the output voltage is negative with respect to the input voltage. Dcdc power converters are employed in a variety of applications, including power supplies for personal computers, office equipment, spacecraft power systems, laptop computers, and telecommunications equipment, as well as dc motor drives. Voltage converter, the buckboost as a voltagecurrentvoltage and the cuk as a. I need to design a cuk converter with the following specs. Design of a robust cascaded controller for cuk converter. The discontinuous conduction mode sepic and cuk power. The boost cuk converter is first analyzed supposing ideal components to obtain basic design equations. Cuk converter circuit design using pic microcontroller, in this article i am going to write about cuk conveter circuit design and its implementation using pic microcontroller. Hi im design a dcdc cuk converter,step down from 17 volts to 4. Section 3 presents the design of the proposed converter.

However, unlike these converters, it can also operate in discontinuous voltage mode 20. This study presents pv power based cuk converter for dc load application. Practical design considerations of a multioutput cuk converter. Psim simulation of a buck boost dcdc converter with. Analysis of cuk converters for power factor correction. A high efficiency 500 w stepup cuk converter ieee xplore. After modelling accurately the cuk converter operating in discontinuous inductor conduction mode, a statefeedback control strategy based in the subsequent linearized smallsignal fullorder model is designed.

This project also goes into detail about how to control the output of the converter with either a potentiometer. It can be shown that cuk converter and sepic converter given in fig. In this article, the steadystate analysis and implementation of a sepiccuk converter with an active snubber to achieve zero voltage switching zvs are presented. Design of isolated cuk converter based on closedloop control final project of ece 445 analysis and design of power electronic circuits. Cuk converter is used for the voltage regulation for the dc application systems. Index terms permanent magnet brush less dc pmbldc motor, cuk converter, v. Dcdc converter basics a circuit employing switching network that converts a dc voltage at one level to another dc voltage two basic topologies. Analysis of cuk converter schematic, equivalent circuits, comparison with cascaded connection of boost and buck. The selection of the circuit components and the design of the coupledinductor. Cuk converter indian institute of technology bombay. This project talks about the importance of dcdc converters and why sepic converters are used instead of other dcdc converters. Cuk, switching dctodc converter with zero input or output specialists conf. Dcdc converters the cuk converter can either operate in continuous or discontinuous current mode.

This converter makes it possible to get high voltage gains with just one controlled power semiconductor. However, it is an inverter converter, so the output voltage is. Cuk converter works similar to buck boost converter but in cuk converter output voltage polarity is opposite to. Design of cuk converter powered by pv array semantic scholar. Cuk converter provide reduction in the ripple of input and output current compared to other traditional. This paper first presents open loop behavior of buck boost and cuk dcdc converter operated under continuous conduction mode ccm. In 28, an overall design of a cuk dcdc converter was presented. Our design brief is to design a cuk converter with an input voltage of 10v and an output voltage of 5v that can support a load of 1a. Power component selection criteria are also given along with suitable load protection methods against output voltage reversals at turnon. Analysis and design of a softswitching sepiccuk converter. Subsystem of open loop buck boost converter figure 6. Modelling, analysis, and design of switching converters.

Design optimization of a cuk dcdc converter based on. The design and performance of the proposed converter are confirmed with experiments on a 240 w prototype converter. The boostcuk converter is first analyzed supposing ideal components to obtain basic design equations. A general unified approach to modeling and analysis of switching dctodc. The controller contains two loop cascaded structure. Sep 28, 2016 the controller effectiveness is validated by simulating the cuk converter in simpowersystems toolbox of matlabsimulink. Design consideration of cuk converter c1200f, c2220f, 4. This is achieved withthe help of state equations and matlabsimulink tool for simulation of those state equations. The simulation is done for six different cases including ideal case, sudden variation of input supply voltage, load resistance, reference voltage, for noise disturbance and parametric variation. The control system designer should always begin with a set of design speci. An isolated cuk converter with multiple outputs using pwm. Psim simulation of a buck boost dcdc converter with wide.

In the proposed converter, the sepic and cuk topologies are combined together on the output side. Differences between the cuk converter and the inverting charge pump converter. Design, modelling and simulation of a pid controller for buck. After modelling accurately the cuk converter operating in discontinuous inductor conduction mode, a statefeedback control strategy based in the subsequent linearized smallsignal fullorder model is. Below the equations there is an interactive online simulation circuit along with component selection steps. However, it is an inverter converter, so the output voltage is of opposite polarity with respect to the input voltage. The sepic converter shown in figure 1 uses two inductors. It provides output voltage both higher as well as lower. Cuk converter circuit design using pic microcontroller. Pdf cuk converter contain two inductor and two capacitor hence it is fourth order dcdc converter. Unlike the singleended primary inductor sepic converter, the cuk converter contains both continuous input and output currents with a low current ripple. New magnetic structures for switching converters have been centered around a very few standard switching converter designs have been so notorious in noise generation that the. A modification of tapped buck converter for power factor correction was realized in 10.

The cuk converter also referred to as the two inductor inverting converter, the inverting charge pump and the single inductor inverting converter also referred to as the inverting buckboost all provide a negative output voltage from a positive input voltage. Third stage deals with determining the design criteria to be fulfilled by the implemented circuit. Vwhpv controller design for cuk converter using model. Jul 31, 2014 analysis of cuk converter schematic, equivalent circuits, comparison with cascaded connection of boost and buck. In a single ended primary inductance converter sepic design, the output voltage can be higher or lower than the input voltage. The summary, concluding marks and recommendations for future. An hybrid boostcuk converter, integrated with a photovoltaic array, is proposed. A nonisolated cuk converter comprises two inductors, two capacitors, a switch usually a transistor, and a diode. Cuk converter is used in hybrid solarwind energy system as a regulator where input voltage depends on speed of wind and sun, inorder to make the output voltage as a constant source cuk converter is used. Cuk converter contain two inductor and two capacitor hence it is fourth order dcdc converter.

Vwhpv controller design for cuk converter using model order. Pdf constant and required level of output voltage are important features of dcdc converters. Cuk converter,cuk converter design,cuk converter design in. Modeling and control of cuk converter operating in dcm. Modern control regulator design for dcdc converters franklin j. Open loop and closed loop results and discussions of the developed software model is demonstrated in section 4. Analysis, design and modeling of dcdc converter using simulink by saurabh kasat bachelor of engineering institute of engineering and technology indore, madhya pradesh state india submitted to the faculty of the graduate college of the oklahoma state university in partial fulfillment of the requirements for the degree of master of science.

Taufik practical design of buck converter associate. Design criteria for sepic and cuk converters as power factor. In 14, the elements of buck converter are designed by considering the ovr and the filter size. New magnetic structures for switching converters have been centered around a very few standard switching converter designs have been so notorious in noise generation that the topologies. Pdf constant and required level of output voltage are important features of dc dc converters. The advantages of the proposed converter are as follows.

The statespace averaged model used to derive the steadystate and the dynamic models of the cuk converter based on its state space averaged model 3. Jan 22, 2016 cuk converter the cuk converter pronounced chook. A synchronous cuk converter based photovoltaic energy system. Design of a robust cascaded controller for cuk converter abstract. However, engineers often unknowingly refer to these topologies by the wrong name, addi. On this page are presented basic design equations of the cuk converter. Pdf design, modelling and simulation of a pid controller. Lm5022 cuk converter reference design pmp8639 this product has been released to the market and is available for purchase. Pdf design optimization of a dcdc cuk converter based on. Lets consider the case when the input inductor operates in dcm, while the output inductor operates in ccm. Cuk converter design cuk converter operation principle animation. The external voltage loop, which is the slow loop, contains the continuous proportionalintegral pi voltage controller whereas the. The principal objective of this work on modeling and analysis of switching dctodc converters and regulators is to obtain a linear model either through statespace or linear circuit description, subject to appropriate restrictions, for the inherently nonlinear power state in which the dc conversion is accomplished. Study of sepic and cuk converters in dcm as where i, is the average input current in a switching period.

Summary dcdc converters dcdc converter boost, buckboost converter, cuk converter analysis next class dcdc converter flyback and forward converters for further reading. Design and implementation of coupled inductor cuk converter operating in continuous conduction mode submitted by mustafa tufan ayhan in partial fulfillment of the requirements for the degree of master of science in electrical and electronics engineering department, middle east technical university by, prof. Among the different topologies, the conventional boost converter is the most widely used topology for power. This tool helps design the power stage of switch mode power supply smps. Modern control regulator design for dcdc converters. Differences between the cuk converter and the inverting. Pdf design optimization of a dcdc cuk converter based. Design and implementation of cuk converter for power factor. The authors in this paper analyzed the applied signals to the gate driver of the power mosfet and subsequently designed a new control system that lets the dcdc cuk converter operate in an ideal manner. Design criteria for sepic and cuk converters as power. In 27, the switching frequency ripple of cuk converter is investigated by applying the state space model. In this paper, a synchronous dcdc cuk converter design and implement for photovoltaic application. Design, modelling and simulation of a pid controller for. A synchronous cuk converter based photovoltaic energy.

Pdf analysis and design of cuk converter using pi controller for. Design of cuk converter with mppt technique semantic scholar. The maximum power from the sun radiation is obtained by sun tracking and. According to the above information, cuk converter is named after slobodan cuk of the california institute of technology, who first presented the design2. Analysis of cuk converter for pfc applications the cuk converter designed for power factor correction can be operated in both continuous and discontinuous current modes has many advantages like easy implementation of the.

Systematical method of designing the elements of the cuk converter. Cuk converter works similar to buck boost converter but in cuk converter output voltage polarity is opposite to that of input voltage polarity. This compensation also tends to slow down the response of the converter, which inhibits the dimming capability of the converter. Pdf controller design for cuk converter using model order reduction. Design optimization of a dcdc cuk converter based on the reliability constraints article pdf available in turkish journal of electrical engineering and computer sciences 253 july 2016 with. Each of these converter topologies has two inductors, with one located at its input and the other at its output.

Several published papers related to the cuk converter topologies is upgraded to adjust to different applications. The input to a dcdc converter is an unregulated dc voltage vg. Nonisolated buck, boost, buckboost, cuk, sepic isolated pushpull, forward, flyback, halfbridge. Design consideration of buck boost converter vg12, vo 24, fs25kz. Middlebrook, dctodc converter having re powercon 6, pp. The sepic converter allows a range of dc voltage to be adjusted to maintain a constant voltage output. Cuk output voltage and current have to be negative values for calculations. In this paper, design criteria for applying sepic and cuk converter as pfpvoltagefollower approach will be studied, demonstrating their advantages. The two inductors can be wound on the same core since the same voltages are applied to them throughout the switching cycle. It shows the current injection method, which gives an additional design freedom which can maximize the efficiency. The design of a 500w stepup converter that supplies. I cant find useful derivations on the net to derive the capacitance and inductance values so am kind of stuck.

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