GRID LOAD SYNCHRONIZATION DEVICE AND METHOD
First Claim
1. A grid synchronization system for use on a power grid, said grid stabilization system comprising:
- a load controller located at a customer site on the power grid, said load controller programmed to transmit a request for permission to change a load on the power grid at the customer site;
a grid stabilization controller located remotely from the customer site; and
a grid stabilization subsystem on the power grid located remotely from the customer site, said grid stabilization system comprising;
an energy storage system for storing energy;
a power transfer interface for electrically coupling the energy storage system to the power grid and providing a transfer of power between the energy storage system and the power grid; and
a power transfer controller for controlling the power transfer interface,wherein the grid stabilization controller is programmed to receive the request from the load controller, determine a future event time at which the load controller is to implement the requested load change, transmit said future event time to the load controller, and instruct the power transfer controller to cause the power transfer interface to implement a power transfer between the power grid and the energy storage system beginning at said future event time.
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Accused Products
Abstract
The grid load synchronization system described herein permits proactive mitigation of the effects of large loads transitioning on and off the power grid and the resultant risks and power quality issues associated therewith. The disclosed proactive system permits a grid-connected power consumer to synchronize demand with power storage equipment in real time using a digital communication link. The power consumer transmits requests to bring a load online or offline to a control site. The control site coordinates power grid source(s) and power grid loads to maintain power quality when loads go on and offline. The control sites manage requests from multiple power consumers and schedule the various loads for the consumers to mitigate the effects of large loads transitioning on and off the power grid. The resulting power quality can be guaranteed when adequate battery resources are made proactively available, rather than reacting to line conditions to engage compensation actions.
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Citations
28 Claims
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1. A grid synchronization system for use on a power grid, said grid stabilization system comprising:
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a load controller located at a customer site on the power grid, said load controller programmed to transmit a request for permission to change a load on the power grid at the customer site; a grid stabilization controller located remotely from the customer site; and a grid stabilization subsystem on the power grid located remotely from the customer site, said grid stabilization system comprising; an energy storage system for storing energy; a power transfer interface for electrically coupling the energy storage system to the power grid and providing a transfer of power between the energy storage system and the power grid; and a power transfer controller for controlling the power transfer interface, wherein the grid stabilization controller is programmed to receive the request from the load controller, determine a future event time at which the load controller is to implement the requested load change, transmit said future event time to the load controller, and instruct the power transfer controller to cause the power transfer interface to implement a power transfer between the power grid and the energy storage system beginning at said future event time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for synchronizing loads on a power grid, the method comprising:
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receiving a request for permission to change a load on the power grid from a load controller; determining a future event time at which the load controller is to implement the requested load change; transmitting said future event time to the load controller; and instructing a power transfer controller to cause a power transfer interface to implement a power transfer between the power grid and an energy storage system beginning at said future event time, wherein the power transfer mitigates the load change. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification