Device and method for power system MPPT control for satellite
A technology of power supply system and control device, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problem of difficulty in tracking the maximum power of microsatellites, and achieve the effects of light weight, less MPPT control circuits, and fewer components
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specific Embodiment approach 1
[0018] Specific implementation mode 1. Combination figure 1 Describe the present embodiment, a kind of satellite power system MPPT control device described in the present embodiment, it comprises solar cell array 1, MPPT control circuit 2, No. 1 diode 31, No. 2 diode 32 and lithium-ion battery pack 4;
[0019] The forward power signal output end of the solar cell array 1 is connected to the anode of the first diode 31, and the cathode of the first diode 31 is simultaneously connected to the input end of the power tracking signal of the MPPT control circuit 2, the cathode of the second diode 32 and the forward power supply of the load The signal input terminal and the power signal output terminal of the MPPT control circuit 2 are simultaneously connected to the anode of the second diode 32 and the positive pole of the lithium-ion storage battery pack 4, the negative pole of the lithium-ion storage battery pack 4 is grounded, and the negative power supply signal output terminal o...
specific Embodiment approach 2
[0026] Embodiment 2. This embodiment is a further description of the MPPT control device for a satellite power supply system described in Embodiment 1. The MPPT control circuit 2 works in an unregulated bus way.
[0027] In this embodiment, the solar battery array is directly connected to the satellite load through the first diode, and the lithium-ion battery pack is directly connected to the satellite load through the second diode. When the energy provided by the solar battery array does not meet the load requirements, the lithium-ion The ion battery pack supplies power to the load;
specific Embodiment approach 3
[0028] Embodiment 3. This embodiment is a further description of the MPPT control device for a satellite power supply system described in Embodiment 1 or 2. The MPPT control circuit 2 is a super step-down topology circuit.
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