High efficiency interleaved solar power supply system
First Claim
1. A method of highly efficiently delivering solar energy power comprising the steps of:
- accepting a first power from a first photovoltaic source of power;
base phase switching said first power to create a base phase switch midpoint output DC power delivery;
photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery;
accepting a second power from a second photovoltaic source of power;
altered phase switching said second power to create an altered phase switch midpoint output DC power delivery;
photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery;
synchronous phase controlling said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery; and
low storage inductance series power combining said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery to provide a conversion combined photovoltaic DC output added through a low storage inductance.
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Abstract
A high efficiency solar power system combining photovoltaic sources of power (1) can be converted by a base phase DC-DC photovoltaic converter (6) and an altered phase DC-DC photovoltaic converter (8) that have outputs combined through low energy storage combiner circuitry (9). The converters can be synchronously controlled through a synchronous phase control (11) that synchronously operates switches to provide a conversion combined photovoltaic DC output (10). Converters can be provided for individual source conversion or phased operational modes, the latter presenting a combined low photovoltaic energy storage DC-DC photovoltaic converter (15) at string or individual panel levels.
340 Citations
29 Claims
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1. A method of highly efficiently delivering solar energy power comprising the steps of:
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accepting a first power from a first photovoltaic source of power; base phase switching said first power to create a base phase switch midpoint output DC power delivery; photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery; accepting a second power from a second photovoltaic source of power; altered phase switching said second power to create an altered phase switch midpoint output DC power delivery; photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery; synchronous phase controlling said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery; and low storage inductance series power combining said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery to provide a conversion combined photovoltaic DC output added through a low storage inductance.
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2. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of low storage inductance series power combining said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery comprises the step of adding said voltages through a low storage inductance that has less than traditional full cycle ripple energy storage generated by photovoltaic circuitry utilizing a 0%-to-100%-duty-cycle range to achieve output across its operational regime.
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3. A method of highly efficiently delivering solar energy power as described in claim 2 wherein said step of photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery comprises the step of photovoltaic current limit controlling said base phase DC power delivery, and wherein said step of photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery comprises the step of photovoltaic current limit controlling said altered phase DC power delivery.
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4. A method of highly efficiently delivering solar energy power as described in claim 2 wherein said step of series power combining said base phase switch midpoint output DC power delivery with said altered phase switch midpoint output DC power delivery through said low storage inductance adding said voltages comprises the step of adding said voltages through an inductance that has less than or equal to one-quarter traditional full cycle ripple energy storage generated by photovoltaic circuitry utilizing a 0%-to-100%-duty-cycle range to achieve output across its operational regime.
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5. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of synchronous phase controlling comprises the step of synchronously duty cycle controlling said step of base phase switching with said step of altered phase switching.
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6. A method of highly efficiently delivering solar energy power as described in claim 5 wherein said step of synchronously duty cycle controlling comprises the step of common duty cycle controlling said step of base phase switching with said step of altered phase switching.
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7. A method of highly efficiently delivering solar energy power as described in claim 5 and further comprising the steps of:
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establishing said conversion combined photovoltaic DC output as a converted DC photovoltaic input to a photovoltaic DC-AC inverter; and inverting said converted DC photovoltaic input into a photovoltaic AC power output.
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8. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of synchronous phase controlling comprises the step of common timing signal controlling said step of base phase switching with said step of altered phase switching.
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9. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of synchronous phase controlling comprises the step of opposing phase controlling said step of base phase switching with said step of altered phase switching.
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10. A method of highly efficiently delivering solar energy power as described in claim 9 wherein said step of combining said base phase switching with said altered phase switching comprises the step of establishing a double maximum voltage arrangement.
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11. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery comprises the step of photovoltaic voltage limit controlling said base phase DC power delivery, and wherein said step of photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery comprises the step of photovoltaic voltage limit controlling said altered phase DC power delivery.
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12. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery comprises the step of photovoltaic power limit controlling said base phase DC power delivery, and wherein said step of photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery comprises the step of photovoltaic power limit controlling said altered phase DC power delivery.
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13. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of photovoltaic boundary controlling said base phase switching that creates a base phase DC power delivery comprises the step of temperature limit controlling said base phase DC power delivery, and wherein said step of photovoltaic boundary controlling said altered phase switching that creates an altered phase DC power delivery comprises the step of temperature limit controlling said altered phase DC power delivery.
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14. A method of highly efficiently delivering solar energy power as described in claim 1 wherein said step of low storage inductance series power combining comprises the step of utilizing a tapped magnetically coupled inductor arrangement having an inductor tap, and wherein said step of combining said base phase switching with said altered phase switching comprises the step of utilizing an inductor connected between said inductor taps.
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15. A method of highly efficiently delivering solar energy power as described in claim 14 wherein said step of utilizing an inductor connected between said inductor taps comprises the step of utilizing a low photovoltaic energy storage inductor connected between said inductor taps.
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16. A method of highly efficiently delivering solar energy power as described in claim 1 and further comprising the step of photovoltaic boundary output controlling said conversion combined photovoltaic DC output added through said low storage inductance.
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17. A method of highly efficiently delivering solar energy power as described in claim 1 and further comprising the step of establishing said conversion combined photovoltaic DC output as a high multi operational regime output.
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18. A high efficiency solar energy power system comprising:
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a first photovoltaic source of power; a base phase switching circuitry connected to said first photovoltaic source of power that establishes a base phase switch midpoint output; a base phase photovoltaic boundary controller to which said base phase switching circuitry is responsive at at least some times of operation; a second photovoltaic source of power; an altered phase switching circuitry connected to said second photovoltaic source of power that establishes an altered phase switch midpoint output; an altered phase photovoltaic boundary controller to which said altered phase switching circuitry is responsive at at least some times of operation; a synchronous phase control circuitry to which said base phase switch midpoint output and said altered phase switch midpoint output are switch timing responsive; and low stored energy inductance, series power additive combiner circuitry connecting said base phase switch midpoint output and said altered phase switch midpoint output through a low stored energy inductance to provide a conversion combined photovoltaic DC output.
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19. A high efficiency solar energy power system as described in claim 18 wherein said low stored energy inductance, series power additive combiner circuitry comprises an inductance that has less than traditional full cycle ripple energy storage generated by photovoltaic circuitry utilizing a 0%-to-100%-duty-cycle range to achieve output across its operational regime.
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20. A high efficiency solar energy power system as described in claim 18 wherein said low stored energy inductance, series power additive combiner circuitry comprises an inductance that has less than or equal to one-quarter traditional full cycle ripple energy storage generated by photovoltaic circuitry utilizing a 0%-to-100%-duty-cycle range to achieve output across its operational regime.
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21. A high efficiency solar energy power system as described in claim 18 wherein said synchronous phase control circuitry comprises a common duty cycle controller to which said base phase switching circuitry and said altered phase switching circuitry are each responsive.
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22. A high efficiency solar energy power system as described in claim 18 wherein said synchronous phase control circuitry comprises opposing phase control circuitry.
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23. A high efficiency solar energy power system as described in claim 22 wherein said base phase switching circuitry and said altered phase switching circuitry each comprise a buck switching circuitry, and wherein said combiner circuitry comprises a series combination inductor.
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24. A high efficiency solar energy power system as described in claim 22 wherein said low stored energy inductance series power additive combiner circuitry comprises a tapped magnetically coupled inductor arrangement having an inductor tap, and wherein said combiner circuitry comprises a series combination inductor connected between said inductor taps.
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25. A high efficiency solar energy power system as described in claim 18 wherein said base phase photovoltaic boundary controller to which said base phase switching circuitry is responsive at at least some times of operation comprises a base phase photovoltaic current limit controller to which said base phase switching circuitry is responsive at at least some times of operation, and wherein said altered phase photovoltaic boundary controller to which said altered phase switching circuitry is responsive at at least some times of operation comprises an altered phase photovoltaic current limit controller to which said altered phase switching circuitry is responsive at at least some times of operation.
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26. A high efficiency solar energy power system as described in claim 18 wherein said base phase photovoltaic boundary controller to which said base phase switching circuitry is responsive at at least some times of operation comprises a base phase photovoltaic voltage limit controller to which said base phase switching circuitry is responsive at at least some times of operation, and wherein said altered phase photovoltaic boundary controller to which said altered phase switching circuitry is responsive at at least some times of operation comprises an altered phase photovoltaic voltage limit controller to which said altered phase switching circuitry is responsive at at least some times of operation.
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27. A high efficiency solar energy power system as described in claim 18 wherein said base phase photovoltaic boundary controller to which said base phase switching circuitry is responsive at at least some times of operation comprises a base phase photovoltaic power limit controller to which said base phase switching circuitry is responsive at at least some times of operation, and wherein said altered phase photovoltaic boundary controller to which said altered phase switching circuitry is responsive at at least some times of operation comprises an altered phase photovoltaic power limit controller to which said altered phase switching circuitry is responsive at at least some times of operation.
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28. A high efficiency solar energy power system as described in claim 18 wherein said base phase photovoltaic boundary controller to which said base phase switching circuitry is responsive at at least some times of operation comprises a base phase temperature limit controller to which said base phase switching circuitry is responsive at at least some times of operation, and wherein said altered phase photovoltaic boundary controller to which said altered phase switching circuitry is responsive at at least some times of operation comprises an altered phase temperature limit controller to which said altered phase switching circuitry is responsive at at least some times of operation.
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29. A high efficiency solar energy power system as described in claim 18 and further comprising a boundary output controller to which said conversion combined photovoltaic DC output is responsive at at least some times of operation.
Specification