HF link inverter power topology and schematic

full-bridge bidirectional current source frequency link inverter main circuit topology shown in Figure 1, Part 3 by high-frequency inverter, high frequency transformer, and cycloconverters. The work, the energy transfer direction of view, the inverter operates in two different states,power inverter. When the input power to the load transfer power, high-frequency link inverter DC voltage energy conversion for the pulsating current energy stored in the energy storage in the high-frequency transformer, cycloconverters the dither current low frequency demodulation, after filtering low-frequency alternating current power supply to the load. Load to the input supply feedback energy, high-frequency inverter rectifier state cycloconverters work modulation state. http://www.gridtieinverter.de/
full-bridge bidirectional current source of high-frequency link inverter flyback (Flyback) power converter topology. The inverter in accordance with the output voltage uo and the polarity of the division of the output current io having four operation modes A, B, C, and D, each one of the working model structure a Flyback power converter topologies are equivalent, and for different the load of a different order of the working mode of the inverter.

When uo> 0, io> 0 grid tie inverter inverter in mode A, VM1 and VM4 frequency chopper, VM5 often pass,Grid tie inverter. Ui, L1, L2, VM1, VM4, VM5, VD6, C, Z constitute a Flyback converter, power UI energy transmitted to the load Z
When uo <0, io> 0, the inverter operates in mode B, the the VM5 high frequency chopper, VM6 often pass. Li, L1, L2, VM5, VM6, VD1, VD2, VD3, VD4, C, Z constitute a Flyback converter, the load Z UI feedback energy to the power supply.
when uo <0 io <0, the inverter operates in mode C, VM2 and VM3 high frequency chopper, VM6 often pass. Ui, L1, L2, VM2, VM3, VM6, VD5, C, Z constitute a Flyback converter, power UI energy transmitted to the load Z
when uo> 0, io <0, the inverter operates in mode D, the VM6 high frequency chopper, VM5 often pass. Ui, L1, power inverter , L2, VM5, VM6, VD1, VD2, VD3, VD4, C, Z constitute a Flyback converter load Z feedback energy to power Ui.