Performance of Zeta Converter Based on PWM Technique for High Power Application

Integrated Intelligent Research (IIR)

International Journal of Computing Algorithm Volume: 05, Issue: 02, December 2016, Page No. 99-101 ISSN: 2278-2397

Performance of Zeta Converter Based on PWM Technique for High Power Application Krishnan S1, Sidheswaran M2, Parathraju P3 Assistant Professor, Department of Electrical and Electronics Engineering,Mahendra Engineering College (Autonomous), Namakkal, Tamilnadu, India, 2 Assistant Professor, Department of Electrical and Electronics Engineering,Mahendra Engineering College (Autonomous), Namakkal, Tamilnadu, India, 3 Assistant Professor, Department of Electrical and Electronics Engineering, Mahendra Engineering College (Autonomous), Namakkal, Tamilnadu, India 1

Abstract: In recent years increasing the use of electrical energy such as pollution free, easy maintenance and high power generation. This paper proposes an alternate way to deal with consolidate stacked and fell setup of DC/DC PWM converter cells keeping in mind the end goal to get to the advantages of the two structures in a solitary stage topology with a solitary dynamic switch. Notwithstanding showing and talking about the ideas of fell, stacked and the blend of both, this paper additionally proposes another topology gotten from these ideas. It gives high voltage transformation proportion with enhanced proficiency. As the name infers, this converter is acquired from the mix of two understood DC/DC converter circuits, the Isolated Zeta converter and the Quadratic-Boost converter. Henceforth, it shows the consolidated elements of both, i.e., high stride up voltage transformation, low information current swell (quadratic lift elements) and low yield current swell (Zeta's element).

few topologies of the high pick up converter, converter yield, and the info are associated in arrangement [6]. The upside of this structure is that the converter is required to be intended for less voltage pick up also, it needs to process less power on the grounds that a segment of the aggregate stack control is specifically provided from the information source.

Consequently, this sort of a course of action brings about high productivity. Be that as it may, the disadvantage of this sort of converter is that the commotion of the information side gets effectively exchanged to the yield side. Regular disconnected converter topologies require the utilization of some assistant clip circuit [7-8] whose control is unpredictable, with the administration of the spillage vitality related with the transformer windings.

II. PROPOSED METHODOLOGY The high step up converter proposed in this paper is gotten by substituting the two inductors of the Zeta converter with Flyback transformers and optional side diode also, channel capacitor. The yield acquired from the two Flyback subparts and in addition the regular Zeta converter part of the proposed converter is included through the arrangement association of these three yields [9].

Keywords: photovoltaic (PV), Zeta converter, renewable energy and multi port input system.

I. INTRODUCTION High stride up DC/DC converters have picked up a lot of intrigue fundamentally because of uses including environmentally friendly power vitality framework, for example, wind vitality, sun oriented vitality and power devices [1], [2]. Run of the mill 200-400 V DC transport application cases of high stride up DC/DC converters include DC Dissemination System, car application, battery charging framework, drove drives and lattice associated inverter. In those applications, the voltage provided by the source is usually low (commonly 12–48 V) for guide application to a standard inverter to associate the green energy to the lattice.

Consequently, a stage up arrange is generally utilized between the sustainable source and the network inverter, framing a twofold transformation topology [3-4].

The spillage inductance of the coupled inductor gives the current censuring impact. Extensive swell shows up in the info current when attempted to accomplish a high yield voltage greatness through these converters. Additionally, the employments of a clasp circuit over the switch end up plainly unavoidable. On account of exchanged capacitor converters, by expanding the voltage multiplier cells [5] made out of diodes and the capacitors, any measure of voltage pick up is conceivable. Be that as it may, because of the substantial segment tally, extensive misfortune occurs in the circuit. In a

Fig 1: Block diagram of Proposed Method Henceforth, high voltage size at the converter yield is gotten.

Amid the switch turn-on period, some piece of the flux delivered by the essential winding passes through the air and does not connection to the auxiliary winding. This piece of the caught vitality, amid the turn off period, can get effortlessly exchanged towards the channel capacitor of the Zeta sub-parcel [10]. Subsequently, the presence of high spikes in the deplete to source voltage of the switch is counteracted. At the same 99

Integrated Intelligent Research (IIR)

International Journal of Computing Algorithm Volume: 05, Issue: 02, December 2016, Page No. 99-101 ISSN: 2278-2397

time, as the vitality caught noticeable all around medium is straightforwardly exchanged to the yield, high productivity can be accomplished. The block diagram of proposed system is shown in fig 1.

Zeta Converter: A zeta converter is a fourth request non direct framework being that, as to vitality enters, it can seen as buck-boostbuck converter and as to the yield, it can be viewed as help bucksupport converter. At the point when the switch is ON (shut), the diode D is OFF. Amid this period, the current through the inductor L 1 , L 2 are drawn from the voltage source. This mode is the charging mode. At the point when the turn is OFF and the diode D is ON position, all the energy stored in L 2 is presently exchanged to the heap R. This stage or method of operation is known as the releasing mode. The circuit diagram of zeta converter is shown in fig 2.

Q8 1

Fig 4: DC Link Capacitor across Voltage Waveform

C1 3 2

1

L2

R1 BT1 D1

BATTERY

C1

2

DIODE L1

Fig 5: Three phase voltage and current waveform 2500

2000

Rotor Speed (RPM)

Fig 2: Circuit diagram of Zeta Converter The output voltage of zeta converter is Vo V in



D

1500

1000

1 D 500

The removal of the bulkier dc interface capacitor causes the presentation of torque swells at the yield of engine. Henceforth a new strategy proposed is a low esteem reasonable capacitor (fired capacitor) and a switch associated between the converter and the inverter. The torque ripples minimization by using the proposed method.

III. SIMULATION RESULTS The output of the PV voltage and current is shown in fig 3. The dc link voltage of the proposed circuit is shown in fig 4. The three phase output inverter is shown in fig 5. The speed of an induction motor is shown in fig 6.

Fig 3: PV voltage and current

0

0

0.5

1

1.5

2

2.5

Time in Sec

Fig 6: Speed of an Induction motor IV. CONCLUSION The zeta converter brings about the less segment compute as a result of the way that power treatment of both the Flyback transformer is administered by a solitary switch and the recuperation of the caught spillage vitality of both the transformer windings is done through a solitary capacitordiode course of action (aloof snubber). Snubber capacitor is specifically associated with the yield which encourages the spillage vitality to achieve the yield straightforwardly bypassing the attractive of Flyback transformers. Consequently, the essential and the optional windings can be firmly coupled, additionally lessening the spillage vitality. Sans spike operation (in DCM) and the transformer encourage the utilization of less appraising control electronic gadgets, whose conduction misfortunes are less.

Reference: [1] Baek, J. I., Lee, J. S., Kim, K. W., Han, J. K., Moon, G. W., Lee, J. B., & Lee, B. H. (2017, June). PWM half-

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Integrated Intelligent Research (IIR)

International Journal of Computing Algorithm Volume: 05, Issue: 02, December 2016, Page No. 99-101 ISSN: 2278-2397

bridge zeta converter utilizing resonant technique for reduced peak current. In Future Energy Electronics Conference and ECCE Asia (IFEEC 2017-ECCE Asia), 2017 IEEE 3rd International (pp. 483-487). IEEE. [2] Ambikapathy, A., Gajendra Singh, and Prabhakar Tiwari.

"Performance Analysis of PI controlled DC-DC Zeta Converter for Grid connected PV System." International Journal of Smart Home 10, no. 7 (2016): 155-164.

[3] Malhotra, Ahana, Prerna Gaur, Shitiz Vij, and Charvi Malhotra. "Design, analysis and performance of zeta converter in renewable energy systems." In Computing for Sustainable Global Development (INDIACom), 2016 3rd International Conference on, pp. 2487-2491. IEEE, 2016.

[4] Pandey, Rahul, Bhim Singh, Ambrish Chandra, and Kamal Al-Haddad. "An improved power quality induction heater using zeta converter." In Power Systems Conference (NPSC), 2016 National, pp. 1-6. IEEE, 2016.

[5] Lee, Seung-Jae, Min-Kwon Yang, Jun Heo, and WooYoung Choi. "Three-Level Zeta Converter using a Coupled Inductor." The Transactions of the Korean Institute of Power Electronics 21, no. 3 (2016): 191-199.

[6] Shabi, Reshma, and Dhanya B. Nair. "Power Factor Corrected Zeta Converter Based Switched Mode Power Supply." Power 4, no. 9 (2016).

[7] Thenmozhi, R., C. Sharmeela, P. Natarajan, and R. Velraj.

"Fuzzy Logic Controller Based Bridgeless Isolated Interleaved Zeta Converter for LED Lamp Driver Application." International Journal of Power Electronics and Drive Systems 7, no. 2 (2016): 509.

[8] Andrade, Antonio MSS, and Mario L. da S. Martins.

"Quadratic-Boost with Stacked Zeta Converter for High Voltage Gain Applications." IEEE Journal of Emerging and Selected Topics in Power Electronics (2017).

[9] Kumar, Bathula Anil, Seelam Sasikanth, and M. Kiran Kumar. "An Isolated Zeta Converter Topology for Switched Reluctance Motor Drive with Power Factor Correction." Indian Journal of Science and Technology 9, no. 33 (2016).

[10] Manohar, J., and K. S. Rajesh. "Speed control of BLDC motor using PV powered synchronous Zeta converter." In Computation of Power, Energy Information and Commuincation (ICCPEIC), 2016 International Conference on, pp. 542-548. IEEE, 2016.

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