Active Power Factor Correction for Rectifier using Micro-controller

ABSTRACT:

automation increases the use of inductive load and so power system loses its perform. severe instance of mains improvement circuits and the day by day increase in electronics user inside the electronic devices improve the cause of mains harmonic misuse.

PI  CONTROLLER

Power is very favourite in the present technological shift and thus it want to improve the power factor with a suitable method.This paper presents the simulation and the experimental results for active power factor correction system. Closed loop circuit is fake in MATLAB using PI controller. The system has been realize in MATLAB/SIMULINK situation.

 

KEYWORDS:

  1. Micro-controller
  2. Power factor correction system
  3. DC-DC boost converter
  4. Total harmonic distortion (THD)
  5. PI controller

 SOFTWARE: MATLAB/SIMULINK

BLOCK DIAGRAM:

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Fig. 1. Circuit diagram of active power factor correction system

EXPECTED SIMULATION RESULTS:

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Fig. 2. Input voltage of conventional converter in PSIM software

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Fig. 3. Output voltage of conventional converter in PSIM software

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Fig. 4. Output and input current waveform of conventional converter in PSIM software.

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Fig. 5. Input current waveform at 15kHz in PSIM software

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Fig. 6  Input voltage waveform at 15 kHz in PSIM software.

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Fig. 7 . Output voltage waveform at 15kHz in PSIM software.

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Fig. 8. Input current waveform in PSIM software.

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Fig. 9. Input voltage waveform in PSIM software

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Fig. 10. Output voltage waveform in PSIM software.

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Fig. 11. Firing pulse for MOSFET IRF640 captured in DSO.

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Fig. 12. Input current and voltage waveform captured in DSO.

CONCLUSION:

mate  cause to burn circuit designing makes circuit involved and also it requires the supply. Employing microcontroller alternatively reduces all its disadvantages thus being efficient. It is easier to design with accuracy output. It was very appealing and absorbing to design AC-DC converter in the power electronics lab using power MOSFET IRF640.

MPPT

The design is capable for many system. These growth have been tested in principle, but some detailed work remains to be done in this area. This research work can be continued for the speed control of the motor using PI controller or fuzzy logic controller, Maximum Power Point Tracking (MPPT) using this circuit can be planned later on.

 REFERENCES:

[1] B.K.Bose, “Modern power electronics and AC Drives”, PHI,2001 .

[2] P.C.Sen, “Power Electronics”, Tata McGraw Hill Publishers, 4th edition, 1987.

[3] N.Mohan, T.M.Undeland, W.P.Robbins, “Power Electronics: Converters application and Design”, New York: Wiley, 3rd edition, 2006.

[4] Mohammed E. El-Hawary, “Principles of Electric Machines with Power Electronic Applications”, Wiley India, 2nd edition, 2011.

[5] Gayakwad, “Operational Amplifier”, Prentice Hall of India, 2009.

 

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