| dc.description.abstract |
The solar energy rectifier plays a key role in electric energy conversion from
DC power to AC power supply that can be fed directly into on grid. Nowa-
days, power inverters are being used in power conversion process but these
devices face with challenges like inefficiency and insensitivity. This paper,
proposed an efficient and controlled solar power electronic converter
(ECSPEC) in microgrid and smart grid applications. The two PV arrays with
1000Watts per square meter each, solar generated current of 3.80Amps (A),
diode voltage of 0.7Volts (V) and diode saturation current of 3.15e-7A each,
drain-source current of 15A of Metal-Oxide Field Effect Transistor
(MOSFET), gate-source voltage and threshold value of 10V and 1.7V of
MOSFET each respectively, capacitor filter of 1e-6 farad were considered.
The MATLAB/Simulink 2019a was used modeling and simulation. The
EC-SPEC efficiency was developed in 2 self-regulating approaches. Firstly,
AC output power to DC input power ratio was compared within one AC
cycle. Secondly, system losses were calculated by single component using
SIMSCAPE Logging. The models were used to simulate each full AC cycle
for a provided amount of solar irradiance, as well as the effective DC voltage
and AC root-mean square current. The results shows that output power con-
trol and synchronization were attained through MOSFET control, and opti-
mized parameters such as 348VDC, 20A, 100VAC, and 96.72% efficiency
have been ascertained utilizing efficient and integrated single-stage converter
characteristics. Finally, the proposed EC-SPEC demonstrated the better per-
formance with compared to the existing devices for efficiency, sensitivity
and reliability considerations. |
en_US |