Methods and apparatus for power factor correction and reduction of distortion in and noise in a power supply delivery network
First Claim
Patent Images
1. A system for reducing distortion in an electrical signal having distortion comprising:
- a. an electric circuit for comparing at least a portion of the electrical signal having distortion in a power line to a desired reference signal, thereby forming a corrective signal; and
b. an electric circuit for selectively sinking and sourcing current from one of a DC rectifier and a solar panel to the electrical signal having distortion according to the corrective signal to correct the distortion; and
selectively injecting additive current from the solar panel into at least one of a load or a power grid.
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Abstract
Methods and apparatus for power factor correction include selectively coupling bit reactive loads with a load having dynamic reactive properties to dynamically correct a power factor. Methods and apparatus for reducing distortion in a power delivery system include a means for determining distortion in a power line, forming a corrective signal according to the distortion and selectively sinking and sourcing current to the power line according to the corrective signal. Furthermore, power for a solar power system is injected into a load via the same apparatus.
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Citations
49 Claims
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1. A system for reducing distortion in an electrical signal having distortion comprising:
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a. an electric circuit for comparing at least a portion of the electrical signal having distortion in a power line to a desired reference signal, thereby forming a corrective signal; and b. an electric circuit for selectively sinking and sourcing current from one of a DC rectifier and a solar panel to the electrical signal having distortion according to the corrective signal to correct the distortion; and
selectively injecting additive current from the solar panel into at least one of a load or a power grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for reducing harmonic distortion in a power line, the system comprising:
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a. a phase line and a neutral line coupled between a utility power meter and an equivalent property load; b. a rectifier coupled to the phase and neutral lines for rectifying AC current to DC current; c. a solar power system for generating DC current; d. a two position switch for selectively coupling one of the rectifier and the solar power system; e. a processing system determining harmonic distortion in the phase line, generating a corrective signal, modulating the corrective signal, and controlling the two position switch; f. a first transistor coupled between the two position switch and the load for selectively coupling positive current to the load according to the corrective signal to correct a negative distortion; g. a negative power supply coupled to the two position switch for inverting DC power into a negative DC current; h. a second transistor coupled between the negative DC power supply and the load for selectively coupling negative current to the load according to the corrective to correct a positive distortion; and i. a transformer, comprising a primary winding and a secondary winding, for galvanically isolating the load from the first transistor and second transistor. - View Dependent Claims (15, 16)
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17. A method of correcting a harmonic distortion in a power line comprising:
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a. measuring a current component in a power line; b. generating a reference signal; c. comparing the reference signal to the current component to generate a corrective signal; d. generating positive DC current from one of a rectifier and a solar power system; e. generating a negative DC current by inverting the positive DC current; f. selectively sourcing the positive DC current into a load according to the corrective signal to correct a negative distortion; g. selectively sourcing the negative DC current into a load according to the corrective signal to correct a positive distortion; and h. injecting additional available power into at least one of the load and the power line from the solar power system, thereby increasing total current. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A system for correcting harmonic distortion comprising:
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a. means for determining the harmonic energy in a power line; b. means for storing the harmonic energy; and c. means for selectively releasing the harmonic energy to counter harmonic energy of an opposite magnitude. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A method of correcting harmonic distortion in a signal having harmonic distortion comprising:
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a. determining the harmonic energy in a power line; b. storing the harmonic energy, and c. selectively releasing the harmonic energy to counter harmonic energy of an opposite magnitude. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A system for reducing distortion in an electrical signal having distortion comprising:
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a. means for comparing at least a portion of the electrical signal having distortion in a power line to a desired reference signal, thereby forming a corrective signal; b. means for selectively sinking and sourcing current to the electrical signal having distortion from a negative power supply and a positive power supply respectively; c. means for modulating the positive power supply according the corrective signal; and d. means for modulating the negative power supply according to the corrective signal. - View Dependent Claims (38, 39, 40, 41, 42)
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43. A method for reducing distortion in an electrical signal having distortion comprising:
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a. comparing at least a portion of the electrical signal having distortion in a power line to a desired reference signal, thereby forming a corrective signal; b. selectively sinking and sourcing current to the electrical signal having distortion from a negative power supply and a positive power supply respectively; c. modulating the positive power supply according the corrective signal; and d. modulating the negative power supply according to the corrective signal. - View Dependent Claims (44, 45, 46, 47, 48)
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49. A system for reducing distortion in an electrical signal having distortion in a power line, comprising:
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a. an electric circuit for comparing at least a portion of the electrical signal having distortion to a desired reference signal, thereby forming a corrective signal; and b. an electric circuit for selectively sinking current from the power line and sourcing current to the power line in response to the corrective signal, wherein the system comprises a single current sensor.
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Specification