Interleaved parallel switch full-bridge inverter and interleaved parallel control method
A full-bridge inverter and switch technology, which is applied in the field of power electronic converters, can solve the problems of many switching tubes, heavy weight, and large volume of the staggered parallel inverter, so as to reduce the filter inductance, size, and size. The effect of a small input filter
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Embodiment 1
[0024] Such as figure 2 As shown, the interleaved parallel switch full-bridge inverter of the present invention receives the input DC voltage DC from the solar cell, and outputs the AC power to the AC grid AC, including: an input capacitor C20, whose positive pole is connected to the positive input of the input DC power supply DC end, its negative pole is connected to the ground potential of the input direct current power supply DC; the first diode D10, its cathode is connected to the positive pole of the input capacitor C20, its anode is connected to the first end of the first inductor L10, the first inductor L10 The second terminal of the second diode is connected to the first input terminal of the alternating current network AC; the second diode D2, its cathode is connected to the positive pole of the input capacitor C20, its anode is connected to the first terminal of the second inductor L20, the second inductor The second end of L20 is connected to the second input end o...
Embodiment 2
[0027] Such as image 3 As shown, in this embodiment, another embodiment of the first inductor and the second inductor of the full-bridge inverter with interleaved parallel switches, the first inductor L10 includes the first leakage inductance LS1 and the first magnetizing inductance connected in series LM1, the second inductor L20 includes a second leakage inductance LS2 and a second magnetizing inductance LM2 connected in series, the first leakage inductance LS1, the second leakage inductance LS2, the first magnetizing inductance LM1 and the second magnetizing inductance LM2 share a magnetic core The first magnetizing inductor LM1 and the second magnetizing inductor LM2 are differentially coupled, preferably, the first magnetizing inductor LM1 and the second magnetizing inductor LM2 have the same inductance value.
Embodiment 3
[0029] Such as Figure 4 As shown, in this embodiment, another embodiment of the first inductor and the second inductor of the full-bridge inverter with interleaved parallel switches, the first inductor L10 includes the first magnetizing inductance LM1 and the third magnetizing inductance LM3 connected in series , the second inductor L20 includes a second magnetizing inductor LM2 and a fourth magnetizing inductor LM4 connected in series, the first magnetizing inductor LM1, the second magnetizing inductor LM2, the third magnetizing inductor LM3 and the fourth magnetizing inductor LM4 share a magnetic core, The first magnetizing inductor LM1 is differentially coupled to the second magnetizing inductor LM2, and the third magnetizing inductor LM3 is coupled to the fourth magnetizing inductor LM4 in common mode. Preferably, the inductance values of the first magnetizing inductor LM1 and the second magnetizing inductor LM2 are the same. The inductance values of the third magneti...
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