Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Active In SP

Posts: 158
Joined: Oct 2010
26-10-2010, 06:11 PM

Presented by
S7 E2
College Of Engineering, Trivandrum
2007-11 batch

.pptx   UNIVERSAL SINGLE-STAGE GRID-CONNECTED INVERTER.pptx (Size: 1.57 MB / Downloads: 84)


Analysis and working of the proposed Topology in various configuration

Shuffling between configurations

Design of L,C Components for the Universal Inverter

Simulation Results and Observations

Experimental Results




Power Conditioning Unit (PCU)

Acts as an interface between power source and grid

Conditions the source energy appropriately to meet the grid requirements

Specific functions such as Reactive Power control, maximum Power point tracking, boosting, bucking etc

PCUs are of 2 types

Disadvantage of Multistage

Reduces overall efficiency
Reliability & Compactness

So need for integrating various stages of a multistage system into a single stage.

A single stage PCU is essentially a single stage grid connected inverter capable of performing several functions

Works on DCM(Discontinuous current mode)

Controlled using PWM(Pulse width modulation)

3 modes of operation-buck,boost, buck-boost
Analysis &working of the proposed topology

Switching pattern determines mode.

Egk = VmImSin²[k/n]Ts

Buck mode:

S5 is ON, source energises capacitor through inductor.

S5 is OFF, IL free wheels.

Boost mode:

Main switch is ON, inductor is energised and capacitor supplies energy to the load

During OFF output diode is turned off,inductor and source supply energy.

Buck-boost mode:

Main switch is ON – inductor across source

During OFF, inductor transfers energy to load

IL=0 capacitor provides energy

Shuffling between Configurations
Vi > Vm:
Work in either buck or buck boost

Vi < Vm:
Works in boost mode
Design Of LC Components For Universal Inverters
L is chosen so that operation is in DCM


Design of Lg & C:

Depends on filtering of inverter output

Simulation Results & Observations
Simulated in MATLAB/SIMULINK for an output=500W

Case 1 :
[Grid voltage 90V @ 50Hz,input=200V dc]

Case 2 :
[Grid voltage 230V,input=100V]

Considering ΔV =50V and fhl =800 Hz for both case 1 and case 2, the values of the filter components, Lg and C, are 10mHand 3.85 μF, respectively; L=0.8mH
1) It is seen that the inductor current is higher in buck–boost(buck) configuration than that in buck configuration(about 50% of the peak value in buck–boost configuration).
2) The reference waveform would just be a rectified sinusoidal waveform in the case of buck–boost configuration, if the grid voltage was sinusoidal.

Experimental Results

Various experiments have been performed on a 500 W laboratory prototype of the proposed topology with a variable dc voltage source (which varies over a range of 100–200 V). All possible tests have been done. The inverter output is tied to a 1 − φ grid ac voltage adjustable with the help of an auto-transformer.
MOSFETs IRFP460 are used as the controllable devices while CSD20060 are used as power diodes.
Input dc voltage is sensed using TI ISO122 chip while the grid voltage is sensed through a step down transformer.

A new concept has been proposed in which the system’s configuration can be changed during the operation.

With optimally designed L,C components, this inverter can operate in various configurations and can swiftly and smoothly shuffle between them.

Provides higher boosting and bucking ability, low peak inductor currents, and higher efficiency.

[1] S. Rahman and A. D. Castro, “Environmental impacts of electricity generation:A global perspective,” IEEE Trans. Energy Convers., vol. 10,no. 2, pp. 307–313, Jun. 1995.
[2] B. K. Bose, “Energy, environment, and advances in power electronics,”IEEE Trans. Power Electron., vol. 15, no. 4, pp. 688–701, Jul. 2000.
[3] G. K. Andersen, C. Klumpner, S. B. Kjaer, and F. Blaabjerg, “A new green power inverter for fuel cells,” in Proc. IEEE PESC, 2002, pp. 727–733.
[4] B. K. Bose, P. M. Szczesny, and R. L. Steigerwald, “Microcomputer control of a residential photovoltaic power conditioning system,” IEEE Trans. Ind. Appl., vol. IA-21, no. 5, pp. 1182–1191, Sep. 1985.
Thank you

Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Tagged Pages: universal grid connected fuel cell inverter for residential application ppt, universal single stage grid connected inverter, universal single stage gridconnected, universal tvm grid uses, project on single stage grid connected inverter, a single stage grid connected inverter ppt, grid connected single stage inverter model,
Popular Searches: single stage active pfc, a single stage grid connected inverter topology for solar pv systems with maximum power point tracking, connected microcontroller avr to inverter musical fountain, a single stage grid connected inverter topology for solar pv systems with maximum power point tracking major project report, multilevel inverter for grid connected pv system ppt, automotive single stage air compressor theory, single stage impulse generator,

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  DETECTING POWER GRID SYNCHRONIZATION FAILURE seminar addict 5 4,262 09-01-2015, 08:16 PM
Last Post: Guest
  SINGLE PHASE AC VOLTAGE CONTROLLER WITH R & RL LOADS project girl 1 1,377 25-09-2014, 11:03 AM
Last Post: Michaelbog
  Grid Voltage Regulation Utilizing Storage Batteries in PV Solar seminar ideas 7 7,478 10-01-2014, 04:27 PM
Last Post: seminar project topic
  Speed Control of Single Phase Induction Motor Using Short Message Service ppt seminar ideas 1 1,831 06-11-2013, 11:31 AM
Last Post: Guest
  On Single-Electron Technology Full Adders Report seminar projects maker 0 619 26-09-2013, 01:10 PM
Last Post: seminar projects maker
  FREQUENCY RESPONSE OF SINGLE TUNED AMPLIFIER pdf seminar projects maker 0 439 13-09-2013, 02:41 PM
Last Post: seminar projects maker
  CMOS Inverter, NAND and NOR using PSPICE pdf seminar projects maker 0 362 13-09-2013, 02:38 PM
Last Post: seminar projects maker
  A Hybrid Wind-Solar Energy System: A New Rectifier Stage Topology pdf study tips 0 681 06-09-2013, 04:55 PM
Last Post: study tips
  Design and Implementation of a New Multilevel Inverter Topology pdf study tips 2 662 23-08-2013, 09:49 AM
Last Post: study tips
  PARALLEL INVERTER study tips 0 274 20-08-2013, 03:38 PM
Last Post: study tips