RESIDENTIAL DISTRIBUTION SYSTEM HARMONICCOMPENSATION USING PV INTERFACING INVERTER

GUIDE NAME: Mr. M.Gopikrishnan

GROUP MEMBER’S:-

Name: Reg no.:

Anoop Kamal Minz U10EE003

Anupam Kumar U10EE004

Bishwarup Mukherjee U10EE006

Krishan Kumar U10EE012

ABSTRACT:

• The increased non-linear loads in today’s typical home are a growing concern

for utility companies.

• To mitigate the harmonic distortions, passive or active filters are typically used.

However, with the increasing implementation of distributed generation (DG) in

residential areas, using DG systems to improve the power quality is becoming a

promising idea, particularly because many DG systems, such as photovoltaic

(PV), wind and fuel cells, have DG-grid interfacing converters.

• the potential for using photovoltaic (PV) interfacing inverters to compensate

the residential system harmonics is explored.

EXISTING SYSTEM:

EXPLANATION:

• Here the system consists of shunt active power filter, capacitor

bank and then the nonlinear load.

• Here the presence of capacitor bank unit the power factor will

be corrected.

• For a harmonic resonance compensation purpose the shut

active filter will be utilized.

DISADVANTAGES:

• Here the output contains more harmonics and ripples.

• The overall system efficiency will be low.

• Output voltage fluctuation will be more.

• system reliability reduced.

PROPOSED SYSTEM:

EXPLANATION:

• In proposed system using distributed generation technique which

comprises of PV system for harmonics minimization.

• The voltage at point of common coupling[PCC] will be given to the

harmonic detector circuit.

• The microcontroller will produce the control pulses using the pwm

modulator.

• Based on that pulses the inverter gate pulses will be controlled.

• Dc-Dc converter used to boost up the voltage DC voltage level.

ADVANTAGES:

• Output ripples can be minimized.

• Power qualities will be improved.

• With the help of line and frequency compensation the system

efficiency will be improved.

• Better harmonic compensation.

CIRCUIT DIAGRAM:

INTEGRATED CIRCUIT DETAILS :

KIT:

CONTROL UNIT :

DRIVER CIRCUIT :

MOSFET CIRCUIT :

BOOST-CONVERTER CIRCUIT :

LINEAR AND NON LINEAR LOAD :

POINT OF COMMON COUPLNGING:

TRANSFORMER :

PV PANEL :

VARIATION OF THE SINUSOIDAL GRAPH AFTER CERTAIN INTERVAL:

SIMULATION RESULTS:

BEFORE COMPENSATION:

AFTER COMPENSATION:

point of common coupling

THD before compensation:

THD after compensation:

SOFTWARE TOOLS USED:

• MATLAB 2010a

HARDWARE USED:

• SOLAR PANEL• MOSFETS• DIODES• MICROCONTROLLER• MOSFET DRIVER• PASSIVE COMPONENTS

REFERENCES:

• [1] J. Arrillaga and N. R. Watson, Power System Harmonics, 2nd ed.

Hoboken, NJ, USA: Wiley, 2003, pp. 176–180.

• [2] K. Wada, H. Fujita, and H. Akagi, “Considerations of a shunt

active filter based on voltage detection for installation on a long

distribution feeder,” IEEE Trans. Ind. Appl., vol. 38, no. 4, pp. 1123–

1130, July/Aug 2002.

• [3] European Photovoltaic Industry Association (EPIA) “Annual

report 2011”, Mar. 2012, pp. 5–7.

• [4] Global Wind Energy Council (GWEC) “Global wind report,

annual market update 2011”, Mar. 2012, pp. 4–7.

Thank you