The authors have declared that no competing interests exist.
Many renewable energy sources such as solar and wind energy are grown and well developed as the cost effective solution being widely used in Nigeria but the whole Africa and world at large has witnessed a dramatic increase, concern over environment and demand of energy have led the world to think about alternate energy sources such as wind, hydro, solar and fuel cells. The voltage multiplier cell was incorporated with the interleaved converter to design the DC to DC boost converter for the PV application. The proposed converter is supplied by 18V as an input voltage and produces 99V output and gives 95% of efficiency under no load and 94% under load conditions. The performance of the proposed topology was substantiated and the results achieved from the fabricated prototype are in good agreement with the design strategies. The effects of input parameters such as sun radiation and useful power input on PV system and DCDC converter outputs were exploration for 14 days. Results confirmed that the DCDC converter was perfectly designed and accurately constructed, when integrated with solar PV system, data were captured under no load and on load conditions.
Many renewable energy sources such as solar and wind energy are grown and well developed as the cost effective solution being widely used in many applications
Power electronics converters serve as interface between user loads and the source. The converters are classified into ACAC, ACDC, DCAC and DCDC converters. The classification is based on nature of the input source and output load. For instance, a DCDC converter is used to connect a dc input source to a dc load
The DC/DC converters are widely used in regulated switch mode DC power supplies. The input of these converters is an unregulated DC voltage, which is obtained by PV array and therefore it will be fluctuated due to changes in radiation and temperature
The determination of the efficiency of electronics devices for interfacing renewable energy systems is a very crucial issue. The fact that the cost for energy may be higher than conventionally produced electricity. However, the efficiency of the DCDC boost converter is obtained by using equation III
Useful power input = sun radiation in W/m^{2} * Area of the PV module in m^{2}
The measured voltage and current output from the PV panel are usually used in equation 1.1 and 1.2 to determine the total power output generated by the PV module.
Efficiency =
Simulation/experimental analysis of the proposed converter are presented and discussed in details. To verify the performance of the proposed converter, a laboratory setup was prepared and tested.
The proposed new converter was design with two inductors (L_{1} & L_{2}), four diodes (D_{1}, D_{2}, D_{3}& D_{4}), two capacitors (C_{1}& C_{2}), two power switches (Q1 and Q2), and a resistor (R_{L}). The actual sizes of the electronics components for the designed of the DCDC boost converter based on simulation are shortlisted in




1  Input voltage V_{in}  18V 
2  Inductor L_{1}  80µH 
3  Signal generator (MOSFET)  IRF520 
4  Inductor L_{2}  80µH 
5  Diodes D_{1}, D_{2}, D_{3}& D_{4}  1N400G 
6  Resistor RL  1kohms 
7  Capacitor C_{1}  220µF 
8  Capacitor C_{2}  33µF 
9  Output Voltage V_{out}  99V 
The proposed circuit diagram of the DCDC boost converter is integrated with voltage multiplier circuits into a conventional interleaved boost converter. The converter which consists of a power input source, 2 Inductors, and 2 signal generators, 4 diodes, 2 capacitors and the load resistance was design using Multism 14.2.
The operation principle of the proposed topology under continuous conduction mode: The steady state operation of the proposed converter (CCM) consists of modes of operation.
The switches
The mode 2 switch
In mode 3 the switch
However, when the switches are turned OFF in mode 4, the diodes become forward biased and they stars conducting. Energy stored in the inductor L1 and L2 is already transferred to capacitor C1 in the previous modes and in this mode energy along with source is transferred to capacitor C2 and load. Inductor currents fall from maximum value to minimum value during this period.
The proposed components sizing for the DCDC Boost converter design involved the voltage ratings and specifications of all the electronics components as indicated in equations 1 to 17
By applying KVL to classical boost converter when ON we have;
For OFF state classical boost converter, yield
The net voltage across the inductors is equal to zero hence
Equation 4 becomes
Considering equation 1 and 3 for inductor voltages, Using Voltsecond balance law;
Equation 1 reads
Equation 3 reads for off state
Integrating over one complete switching frequency with the use of equation 6 and 7
The LHS is zero because in periodic steady state, the net charge in inductor current is equal to zero.
The first part of the equation 9 is for on state and the second part for the off state, putting equation 3 into 9.
The proposed boost converter is the sum of two classical boost converters. The voltage gain of the proposed converter will be twice equation 12.
The voltage gain of the proposed converter in terms of duty cycle exist as
The dutycycle becomes
In terms of voltage stress on switch, the voltage stress of the components will be calculated using, equation (17)
The simulation analyses of the new converter are presented
The output and input voltage were recorded, average voltage was evaluated. The input and output voltages across the components were simulated and their graphs were also shown in the
The measuring instrument used for investigation the performance DCDC boost converter are shortlisted in



Pyronometer  TES 1333R Data logging Solar power meter 
Multimeter  DT9205A, (0 – 120 V) 
PV module  50W APPM50 
Solarimeter  PMA2100 
The direct sun radiation striking the surface area of the PV module has been measured simultaneously with the input and output voltages at intervals of 10 minutes for half a month. The average was collected and results were obtained. The constructed setup DCDC boost converter and experimental has been presented in plate 1 and 2. The PV panel specification used in the experiment is shown in
S/N  PARAMETERS  SPECIFICATION 
1  Maximum power (Pmax)  50W 
2  Output tolerance  +5% 0r 5% 
3  Current at Pmax  2.86 A 
4  Voltage at Pmax  17.70 V 
5  Open circuit voltage  21.50 V 
6  Short circuit current  3.00 A 
The Constructed DCDC boost converter is shown in the
Considering the inter relationship between PV output power and net power consumption, as shown in
A design plan with Power Conversion group is familiar and considered as an alternative to the primarily selected topology. In this research, a stepup DCDC converter has been proposed. The results obtained shows that the pulse signal used in the new converter provide an extended voltage gain with a high reduction of dutycycle and voltage stress within the semiconductor components which has been reduced to minimum value compared to other designs. The analysis and experimental results imply that the proposed converter achieves high efficiency within a wide input range and a wide load range including light load. These characteristics have made the new converter ideal for interfacing PV modules and other renewable energy resources.
The 18V to 99V DCDC boost converter which has been designed constructed and experimentally tested with solar PV module with no load and load condition. Therefore, the boost DCDC converter may be technically and economically workable to be integrated with photovoltaic systems for energy optimization and hence the demand of energy transition and the quest for reliable, affordable and sustainable energy supply will surely decrease if something of this nature is considered and put in to related applications.