DC POWER SOURCE CONVERSION MODULES, POWER HARVESTING SYSTEMS, JUNCTION BOXES AND METHODS FOR DC POWER SOURCE CONVERSION MODULES
First Claim
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1. A DC power source conversion module, comprising:
- a DC power source module; and
a DC to DC conversion module, comprising;
a DC to DC converter, powered by the DC power source module to generate an output signal; and
a control module, sensing a responding signal of the DC to DC conversion module and controlling the DC to DC converter according to the sensed responding signal, such that the DC power source conversion module is operated at a predetermined output power, wherein the responding signal responds to the output signal of the DC to DC converter.
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Abstract
A DC power source conversion module is provided, including a DC power source module and a DC to DC conversion module. The DC to DC conversion module includes a DC to DC converter and a control module. The DC to DC converter is powered by the DC power source module to generate an output signal. The control module senses a responding signal of the DC to DC conversion module and controls the DC to DC converter according to the sensed responding signal, such that the DC power source conversion module is operated at a predetermined output power, in which the responding signal responds to the output signal of the DC to DC converter.
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Citations
53 Claims
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1. A DC power source conversion module, comprising:
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a DC power source module; and a DC to DC conversion module, comprising; a DC to DC converter, powered by the DC power source module to generate an output signal; and a control module, sensing a responding signal of the DC to DC conversion module and controlling the DC to DC converter according to the sensed responding signal, such that the DC power source conversion module is operated at a predetermined output power, wherein the responding signal responds to the output signal of the DC to DC converter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for a DC power source conversion module, comprising:
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generating a perturb signal to perturb a control loop of a DC power source converter; performing a positive sampling and a negative sampling on signals responding to an output voltage or an output current in the DC power source conversion module to generate a first sampling signal and a second sampling signal; generating an error amplifier signal according the first sampling signal and the second sampling signal; adding the error amplifier signal with the perturb signal to generate a control signal; and controlling a work frequency or duty cycle of a DC to DC converter in the DC power source conversion module according to the control signal, such that the DC to DC converter is operated with a maximum output power. - View Dependent Claims (22, 23, 24)
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25. A power harvesting system, comprising:
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a photovoltaic module, comprising a plurality of photovoltaic sub-modules, wherein each photovoltaic sub-module is composed of a plurality of photovoltaic cells connected in series; and a junction box, comprising a plurality of DC to DC conversion modules connected in series, wherein each the DC to DC conversion module comprises; a DC to DC converter, powered by one of the photovoltaic sub-modules to generate an output voltage; and a control module, sensing the output voltage and controlling the DC to DC converter according to the sensed output voltage, such that the DC to DC converter is operated in a predetermined power. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A power harvesting system, comprising:
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a plurality of DC power source conversion module strings, having output terminals connected in series to provide a first output voltage and a output current, wherein each the DC power source conversion module string comprises a plurality of photovoltaic conversion modules connected in series and each photovoltaic conversion module comprises; a photovoltaic module, composed of a plurality of photovoltaic sub-modules connected in series; and a first DC to DC conversion module, comprising a DC to DC converter, powered by the photovoltaic module to generate a second output voltage; and a control module, sensing the second output voltage and controlling the DC to DC converter according the sensed second output voltage, such that the DC to DC converter is operated in a first predetermined output power; and a DC to AC conversion module, coupled to the DC power source conversion module strings to generate a AC voltage. - View Dependent Claims (32, 33, 34, 35, 36, 45)
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37. A junction box, comprising:
at least one DC to DC conversion module, comprising; a DC to DC converter, powered by a DC power source module to generate an output signal; and a control module, sensing a responding signal of the DC to DC conversion module and controlling the DC to DC converter according to the sensed responding signal, such that the DC to DC conversion module is operated in a predetermined power, wherein the responding signal responds to the output signal of the DC to DC converter. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53)
Specification