Smart-grid adaptive power management method and system with power factor optimization and total harmonic distortion reduction
First Claim
1. A system for optimizing electrical power flow in an electrical distribution network, comprising:
- a first plurality of intelligent load management controllers (ILMUCs) configured to control power delivery to a first plurality of electrical devices coupled to a first sub-grid of the electrical distribution network;
a second plurality of ILMUCs configured to control power delivery to a second plurality of electrical devices coupled to a second sub-grid of the electrical distribution network;
a power management server in communication with the first and second pluralities of ILMUCs configured to receive current profile information from said first and second pluralities of ILMUCs and generate therefrom a power library database containing a plurality of digital representations of a plurality of alternating current (AC) waveforms characterizing a plurality of AC currents flowing through the first and second pluralities of electrical devices under a plurality of different load conditions; and
a storage device configured to store the power library database,wherein the power management server is further configured to determine first and second switching configurations of the first and second pluralities of ILMUCs using the power library database, and direct the first and second pluralities of ILMUCs to operate in accordance with the first and second switching configurations.
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Abstract
A method and system of power factor optimization and total harmonic distortion are provided under the premise of efficient power management and distribution on an electrical grid. The method and system include a novel optimization technique based on a novel current profiling methodology enabling real-time power management with power factor correction as a function of the optimization. The optimization can be performed under dynamic current constraints. When deployed on an electrical grid, the method and system can provide a new technique for power management targeting an efficiency of the electrical grid. The method and system can thus provide for reduced costs of energy production and reduced carbon emissions into the atmosphere.
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Citations
20 Claims
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1. A system for optimizing electrical power flow in an electrical distribution network, comprising:
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a first plurality of intelligent load management controllers (ILMUCs) configured to control power delivery to a first plurality of electrical devices coupled to a first sub-grid of the electrical distribution network; a second plurality of ILMUCs configured to control power delivery to a second plurality of electrical devices coupled to a second sub-grid of the electrical distribution network; a power management server in communication with the first and second pluralities of ILMUCs configured to receive current profile information from said first and second pluralities of ILMUCs and generate therefrom a power library database containing a plurality of digital representations of a plurality of alternating current (AC) waveforms characterizing a plurality of AC currents flowing through the first and second pluralities of electrical devices under a plurality of different load conditions; and a storage device configured to store the power library database, wherein the power management server is further configured to determine first and second switching configurations of the first and second pluralities of ILMUCs using the power library database, and direct the first and second pluralities of ILMUCs to operate in accordance with the first and second switching configurations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of controlling power flow in an electrical distribution network, comprising:
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receiving, from a plurality of intelligent load management controllers (ILMUCs) associated with a plurality of electrical devices in an electrical distribution network, a plurality of alternating current (AC) current measurements characterizing a plurality of AC currents flowing through the plurality of electrical devices; using the received AC current measurements, calculating and storing in a power library a plurality of digital representations of a plurality of AC waveforms characterizing the plurality of AC currents over one or more cycles; comparing two or more waveforms from the power library to determine an optimum switching configuration; and commanding the plurality of ILMUCs to switch in accordance with the optimum switching configuration, wherein the optimum switching configuration, once implemented by the plurality of ILMUCs, maximizes a power factor of the electrical distribution network. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification