POWER CONDITIONING CIRCUIT TO MAXIMIZE POWER DELIVERED BY A NON-LINEAR GENERATOR
First Claim
1. A power conditioner circuit for conditioning power received from a DC power source, the power conditioner circuit comprising:
- an input line coupled to receive power from the DC power source;
an output line to output power to an external load, wherein the output line is operated at an approximately fixed voltage; and
a DC-DC converter circuit coupling the input line to the output line, and configured to provide a load current to the external load for generating a maximum output power for the external load without requiring circuitry to perform a power calculation.
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Abstract
A circuit receives variable voltage and current from a renewable power source and optimally loads the source to maximize power delivered into a DC bus having constant voltage. A boost circuit and synchronous rectifier having a controlled duty cycle step up the voltage from the renewable source. A feedback control circuit senses delivered current and optimizes the duty cycle to maximize this current, and therefore maximize delivered power. Precision measurement of delivered current is not necessary, greatly reducing complexity and expense. The power source can be isolated from the DC bus, and an arc fault sensor can determine the presence of an electrical arc and shut down the power conditioner to prevent damage due to arcing or fire.
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Citations
33 Claims
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1. A power conditioner circuit for conditioning power received from a DC power source, the power conditioner circuit comprising:
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an input line coupled to receive power from the DC power source; an output line to output power to an external load, wherein the output line is operated at an approximately fixed voltage; and a DC-DC converter circuit coupling the input line to the output line, and configured to provide a load current to the external load for generating a maximum output power for the external load without requiring circuitry to perform a power calculation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 29, 30, 31, 32)
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17. A Power Generator system comprising:
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a DC power source; and a power conditioner coupled to the DC power source, the power conditioner comprising; an input line coupled to receive power from the DC power source; an output line to output power to an external load, wherein the output line is operated at an approximately fixed voltage; and a DC-DC converter circuit coupling the input line to the output line, and configured to provide a maximum output power without having to perform a power calculation. - View Dependent Claims (18, 19, 20)
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21. A method of conditioning power from a DC power source to an output line using a power conditioner, the method comprising:
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receiving a current from the DC power source; chopping the current at a duty cycle using a DC-DC converter; outputting a load current on the output line, wherein the output line has an approximately constant voltage; and adjusting the duty cycle of the DC-DC converter to maximize the load current on the output line. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 33)
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Specification