Fig 1.
A power flow of the topology.
Fig 2.
A traditional grid-connected flyback inverter.
Fig 3.
A traditional flyback inverter fitted with a power decoupling circuit.
Fig 4.
Model of the proposed topology of the three-port three-switches flyback series circuit.
Fig 5.
The vital waveforms of the inverter in one switching cycle.
Fig 6.
Equivalent circuit of mode 1.
Fig 7.
Equivalent circuit of mode 2.
Fig 8.
Equivalent circuit of mode 3.
Fig 9.
Equivalent circuit of mode 4.
Fig 10.
Equivalent circuit of mode 5.
Fig 11.
Block diagram of the controlling strategy of the designed inverter.
Table 1.
Simulation factors of the proposed topology.
Fig 12.
Voltage across switch S1, current of switch S1, inverter input current, and current of a decoupling capacitor.
Fig 13.
Results of simulation for the robustness.
(a). the outputting AC-current. (b). Outputting current with the load changes. (c). the outputting DC-current. (d). Fourier analysis of the outputting AC-current. (e). Fourier analysis of the outputting DC-current.
Fig 14.
Experimental prototype.
Table 2.
Simulation factors of the proposed topology.
Table 3.
Parameters of the switches and diodes.
Fig 15.
Outputting current, the grid voltage, and the voltage of the decoupling capacitor.
Fig 16.
Gate driving voltages of switches S1 and S2, and the output current of the inverter before filtering.
Fig 17.
Gate driving voltages of switches S1 and S2, and the output current of the inverter before filtering.
Fig 18.
Outputting current, the grid voltage, and the voltage of the decoupling capacitor.
Fig 19.
Efficiency of the proposed inverter versus its output power.
Fig 20.
Loss distribution of the main components.
Table 4.
Comparisons between traditional H-bridge and the proposed topology.
Fig 21.
Comparisons profile between traditional H-bridge and the proposed topology.