Index terms permanent magnet brush less dc pmbldc motor, cuk converter, v. Design optimization of a cuk dcdc converter based on. Lets consider the case when the input inductor operates in dcm, while the output inductor operates in ccm. Design of isolated cuk converter based on closedloop control final project of ece 445 analysis and design of power electronic circuits. In this article, the steadystate analysis and implementation of a sepiccuk converter with an active snubber to achieve zero voltage switching zvs are presented. Subsystem of open loop cuk converter vin 12 subsystem d vg il1 il2 v1 scope pulse. Voltage converter, the buckboost as a voltagecurrentvoltage and the cuk as a.
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. In this paper, design of a robust cascade controller for a cuk converter is investigated. A synchronous cuk converter based photovoltaic energy system. Design of cuk converter powered by pv array semantic scholar. Practical design considerations of a multioutput cuk converter. It can be shown that cuk converter and sepic converter given in fig. Pdf design, modelling and simulation of a pid controller. Design, modelling and simulation of a pid controller for buck. The input to a dcdc converter is an unregulated dc voltage vg. 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. Modelling, analysis, and design of switching converters. The external voltage loop, which is the slow loop, contains the continuous proportionalintegral pi voltage controller whereas the. Differences between the cuk converter and the inverting charge pump converter.
Sep 28, 2016 the controller effectiveness is validated by simulating the cuk converter in simpowersystems toolbox of matlabsimulink. However, unlike these converters, it can also operate in discontinuous voltage mode 20. Among the different topologies, the conventional boost converter is the most widely used topology for power. Dcdc converters the cuk converter can either operate in continuous or discontinuous current mode. Boost cuk converter using a single controlled power. However, it is an inverter converter, so the output voltage is. A high efficiency 500 w stepup cuk converter ieee xplore.
This tool helps design the power stage of switch mode power supply smps. This converter makes it possible to get high voltage gains with just one controlled power semiconductor. In 14, the elements of buck converter are designed by considering the ovr and the filter size. Design consideration of cuk converter c1200f, c2220f, 4. Cuk converter works similar to buck boost converter but in cuk converter output voltage polarity is opposite to. The advantages of the proposed converter are as follows. Design of a robust cascaded controller for cuk converter abstract. The boostcuk converter is first analyzed supposing ideal components to obtain basic design equations. The design of a 500w stepup converter that supplies. Psim simulation of a buck boost dcdc converter with. Hi im design a dcdc cuk converter,step down from 17 volts to 4.
This study presents pv power based cuk converter for dc load application. Design of a robust cascaded controller for cuk converter. Cuk converter contain two inductor and two capacitor hence it is fourth order dcdc converter. The sepic converter shown in figure 1 uses two inductors. This compensation also tends to slow down the response of the converter, which inhibits the dimming capability of the converter. On this page are presented basic design equations of the cuk converter.
This shows that the openloop system cannot reject disturbances on the input voltage vg. Design, modelling and simulation of a pid controller for. Pdf constant and required level of output voltage are important features of dc dc converters. Cuk converter circuit design using pic microcontroller. In this paper, a synchronous dcdc cuk converter design and implement for photovoltaic application. Pdf constant and required level of output voltage are important features of dcdc converters. In this paper, design criteria for applying sepic and cuk converter as pfpvoltagefollower approach will be studied, demonstrating their advantages. Vwhpv controller design for cuk converter using model. 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. 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. This project also goes into detail about how to control the output of the converter with either a potentiometer. A modification of tapped buck converter for power factor correction was realized in 10. This project talks about the importance of dcdc converters and why sepic converters are used instead of other dcdc converters.
In the proposed converter, the sepic and cuk topologies are combined together on the output side. According to the above information, cuk converter is named after slobodan cuk of the california institute of technology, who first presented the design2. Cuk converter is used for the voltage regulation for the dc application systems. 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. Middlebrook, dctodc converter having re powercon 6, pp. Differences between the cuk converter and the inverting. Several published papers related to the cuk converter topologies is upgraded to adjust to different applications. The control system designer should always begin with a set of design speci. 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. 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. Taufik practical design of buck converter associate. An hybrid boostcuk converter, integrated with a photovoltaic array, is proposed. Each of these converter topologies has two inductors, with one located at its input and the other at its output. The discontinuous conduction mode sepic and cuk power.
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. The summary, concluding marks and recommendations for future. 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. Pdf design optimization of a dcdc cuk converter based on. However, engineers often unknowingly refer to these topologies by the wrong name, addi. Third stage deals with determining the design criteria to be fulfilled by the implemented circuit. Systematical method of designing the elements of the cuk converter. Pdf cuk converter contain two inductor and two capacitor hence it is fourth order dcdc converter. The sepic converter allows a range of dc voltage to be adjusted to maintain a constant voltage output. 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. Pdf analysis and design of cuk converter using pi controller for. 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. Subsystem of open loop buck boost converter figure 6.
Analysis of cuk converter schematic, equivalent circuits, comparison with cascaded connection of boost and buck. 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. Analysis of cuk converters for power factor correction. The selection of the circuit components and the design of the coupledinductor. 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. Design criteria for sepic and cuk converters as power factor. Design and implementation of cuk converter for power factor. Design criteria for sepic and cuk converters as power. I cant find useful derivations on the net to derive the capacitance and inductance values so am kind of stuck. Modeling and control of cuk converter operating in dcm. Cuk converter,cuk converter design,cuk converter design in. Dcdc converter basics a circuit employing switching network that converts a dc voltage at one level to another dc voltage two basic topologies. An isolated cuk converter with multiple outputs using pwm.
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. Open loop and closed loop results and discussions of the developed software model is demonstrated in section 4. Cuk converter provide reduction in the ripple of input and output current compared to other traditional. 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. 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. 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. Pdf design optimization of a dcdc cuk converter based. The maximum power from the sun radiation is obtained by sun tracking and.
Vwhpv controller design for cuk converter using model order. However, it is an inverter converter, so the output voltage is of opposite polarity with respect to the input voltage. Modern control regulator design for dcdc converters franklin j. Power component selection criteria are also given along with suitable load protection methods against output voltage reversals at turnon. The controller contains two loop cascaded structure. Cuk output voltage and current have to be negative values for calculations. Lm5022 cuk converter reference design pmp8639 this product has been released to the market and is available for purchase. Analysis and design of a softswitching sepiccuk converter.
This is achieved withthe help of state equations and matlabsimulink tool for simulation of those state equations. This paper first presents open loop behavior of buck boost and cuk dcdc converter operated under continuous conduction mode ccm. In a single ended primary inductance converter sepic design, the output voltage can be higher or lower than the input voltage. Cuk, switching dctodc converter with zero input or output specialists conf. Below the equations there is an interactive online simulation circuit along with component selection steps.
Controller design for cuk converter using model order reduction. Jul 31, 2014 analysis of cuk converter schematic, equivalent circuits, comparison with cascaded connection of boost and buck. In 27, the switching frequency ripple of cuk converter is investigated by applying the state space model. 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. A synchronous cuk converter based photovoltaic energy. The design and performance of the proposed converter are confirmed with experiments on a 240 w prototype converter. Summary dcdc converters dcdc converter boost, buckboost converter, cuk converter analysis next class dcdc converter flyback and forward converters for further reading.
The boost cuk converter is first analyzed supposing ideal components to obtain basic design equations. A general unified approach to modeling and analysis of switching dctodc. Cuk converter design cuk converter operation principle animation. The two inductors can be wound on the same core since the same voltages are applied to them throughout the switching cycle. Study of sepic and cuk converters in dcm as where i, is the average input current in a switching period. Section 3 presents the design of the proposed converter. 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. Nonisolated buck, boost, buckboost, cuk, sepic isolated pushpull, forward, flyback, halfbridge. Design of cuk converter with mppt technique semantic scholar.
It provides output voltage both higher as well as lower. It is an inverting converter, so the output voltage is negative with respect to the input voltage. Cuk converter works similar to buck boost converter but in cuk converter output voltage polarity is opposite to that of input voltage polarity. Psim simulation of a buck boost dcdc converter with wide. Design consideration of buck boost converter vg12, vo 24, fs25kz. Cuk converter is a switching regulator which yields a variable output voltage from a constant dc supply. In 28, an overall design of a cuk dcdc converter was presented. It shows the current injection method, which gives an additional design freedom which can maximize the efficiency.
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