System and method for a self-healing grid using demand side management techniques and energy storage
First Claim
1. A method for power grid control, comprising:
- monitoring electrical characteristics, including critical electrical components, of a plurality of islands of a power grid;
estimating state and topology of the islands with the monitored electrical characteristics through computer simulation of power flow through the power grid;
detecting an irregularity in an affected island based on the estimated state and topology; and
optimizing electrical power delivery to each island based on the estimated state and topology, or in response to the detected irregularity, by automatically adjusting the amount of additional power available through a battery energy storage system in electrical communication with the affected island.
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Accused Products
Abstract
A self-healing power grid control system includes a power grid having a plurality of network islands with a plurality of linear and non-linear loads. A plurality of control sensors communicate with the power grid to monitor the electrical characteristics of the power grid. A plurality of controlled relays are in electrical communication with the plurality of non-linear loads. A battery energy storage system (ESS) is in electrical communication with a main power source and a network island. A first restoration controller is in electrical communication with the control sensors, the controlled relays, and with the battery ESS. The first restoration controller receives control signals from the control sensors, and in response to detecting an irregularity in the power grid, automatically actuates the battery ESS to stabilize power to the linear loads, and disconnects selected controlled relays to disconnect power to a calculated percentage of the non-linear loads.
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Citations
20 Claims
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1. A method for power grid control, comprising:
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monitoring electrical characteristics, including critical electrical components, of a plurality of islands of a power grid; estimating state and topology of the islands with the monitored electrical characteristics through computer simulation of power flow through the power grid; detecting an irregularity in an affected island based on the estimated state and topology; and optimizing electrical power delivery to each island based on the estimated state and topology, or in response to the detected irregularity, by automatically adjusting the amount of additional power available through a battery energy storage system in electrical communication with the affected island. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A computer readable medium having stored thereon computer executable instructions for performing a method for power grid control, the method comprising:
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monitoring electrical characteristics, including critical electrical components, of a plurality of islands of a power grid; estimating state and topology of the islands with the monitored electrical characteristics through computer simulation of power flow through the power grid; detecting an irregularity in an affected island based on the estimated state and topology; and optimizing electrical power delivery, controlling voltage and frequency, to each island based on the estimated state and topology, or in response to the detected irregularity, by automatically adjusting the amount of additional power available through a battery energy storage system in electrical communication with the affected island. - View Dependent Claims (14, 15)
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16. A method for power grid control of a power grid having linear and non-linear loads, the method comprising:
in response to detecting a power grid irregularity, automatically; identifying the nature of the irregularity; assessing the severity and potential consequences of the irregularity; identifying corrective actions with simulations of the irregularity extrapolated within an affected portion of the power grid; deciding an effective corrective action; and turning on a battery energy storage system to replace a disconnected main power source or augment a disrupted main power source; and employing automated demand side management control techniques to disconnect power to a calculated percentage of non-linear loads of the affected grid portion and stabilize power delivery to a plurality of remaining connected loads. - View Dependent Claims (17, 18, 19)
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20. A computer readable medium having stored thereon computer executable instructions for performing a method for power grid control of a power grid having linear and non-linear loads, the method comprising:
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in response to detecting a power grid irregularity, automatically; identifying the nature of the irregularity; assessing the severity and potential consequences of the irregularity; identifying corrective actions with simulations of the irregularity extrapolated within an affected portion of the power grid; deciding an effective corrective action; and turning on a battery energy storage system to replace a disconnected main power source or augment a disrupted main power source; and employing automated demand side management control techniques to disconnect power to a calculated percentage of non-linear loads of the affected grid portion and stabilize power delivery to a plurality of remaining connected loads.
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Specification