NON-CONVENTIONAL SOURCE OF ENERGY
Limited availability of conventional energy
Renewable source of energy.
Effective in all weather condition.
Increase Generation capacity.
No emission of pollutants.
Simulation of PV module.
Development of MPPT algorithm(P & O Method) .
Design and simulation of DC-DC converter(Boost
Design of MPP tracker.
SINGLE DIODE MODEL OF PV CELL
ID =Diode current
Ipv =PV cell current
Vpv=PV cell voltage
Rs= series resistance
RP= resistance due to
𝐼 𝑃𝑉= Iph-Is[exp(q(Vpv+IpvRs)/KTcA)-1]-(Vpv+IpvRs)/Rp
Is=Reverse saturation current
q= charge of electrone
A= Ideality factor
Eg=band gap energy
Steps up the input voltage.
Helps in removing nonlinearity.
Helps in increasing system efficiency.
DC-DC Boost Converter
The switch is closed and the inductor is charged by the
source through the switch. The charging current is
exponential in nature but for simplicity is assumed to be
The diode restricts the flow of current from the source to
the load and the demand of the load is met by the
discharging of the capacitor.
The switch is open and the diode is forward biased . The
inductor now discharges and together with the source
charges the capacitor and meets the load demands.
The efficiency of solar energy is very low. Thus we need
some techniques to extract the maximum power from these
arrays, to ensure that power converter circuits operate at the
maximum power point of the solar array.
The basic principle of MPPT is to extract the maximum
available power from PV module by making them operate at
most efficient voltage(MPP).
The main objective of all these MPPT algorithms is to
achieve fast and accurate tracking performance and
minimize oscillations due to varying weather conditions.
A lot of MPPT algorithms have been developed by
researchers all over the world. They are:
perturbation and observation method
incremental conductance method
Hill climbing method.
P&O method is the most frequently used algorithm
to track the maximum power because of its simple
structure and fewer required parameters.
Measure V(n) I(n)
Interleaved boost converter has been studied
and the waveforms have been verified.
One close loop inverter will be designed for
the grid synchronization.
WEI WEN YIM-SHU LEE, Senior Member, IEEE,MARTIN
HOI LAM CHOW, Member, IEEE ,DAVID KI-WAI CHENG,”
Interleaved Boost Converter with Zero Diode Reverse-
Wong, P. L., and Lee, F. C. (2000),”Interleaving to
reduce reverse-recovery loss in power factor
Jovanovi´c, M. M. (1997), “A technique for reducing
rectifier reverse-recovery-related losses in high-
voltage, high-power boost converters.”
In Proceedings of IEEE APEC’97 Annual Meeting,
Vol. 2, Feb. 1997.
Tseng, C. J., and Chen, C. L. (1998), “Passive lossless
snubber for dc/dc converters. In Proceedings of IEEE
APEC’98 Annual Meeting, Vol. 2,Feb. 1998