Method and system for regulating power of an electricity grid system
First Claim
1. A power regulation system for an electrical grid comprising:
- a store of electrical energy;
a source of electrical energy, wherein an energy supply response time of the stole is faster than that of the source;
a first switch connecting the store to the source;
a second switch connected to the store at one side and having an opposite side for connection to the grid;
a first controller configured to monitor an amount of energy stored in the store and an amount of energy stored in the source and to selectively control the first switch to close to transfer energy from the source to the store provided that the amount of energy stored in the source is above a minimum source amount or to transfer energy from the store to the source provided that the amount of energy stored in the source is below a maximum source amount;
a second controller configured to monitor the amount of energy stored in the store and to control the second switch to close to transfer energy to the grid provided that the amount of energy in the store is above a minimum store threshold or to absorb energy from the grid provided that the amount of energy in the store is below a maximum store threshold,wherein the power regulation system operates in accordance with a regulation signal to transfer energy to the grid or to absorb energy from the grid.
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Accused Products
Abstract
A power regulation system for an electrical grid has a store of electrical energy connected through a first switch to a source of electrical energy. The response time of the store is faster than that of the source. A second switch is connected to the store at one side with the opposite side for connection to the grid. A first controller monitors energy stored in the store and energy available from said source and selectively controls the first switch to close to transfer energy from the source to the store. A second controller monitors energy stored in said store and, on receiving an indication that additional energy is needed in the grid, if the energy stored in the store exceeds a supply threshold, controls the second switch to close to transfer energy from the store to the grid.
155 Citations
21 Claims
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1. A power regulation system for an electrical grid comprising:
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a store of electrical energy; a source of electrical energy, wherein an energy supply response time of the stole is faster than that of the source; a first switch connecting the store to the source; a second switch connected to the store at one side and having an opposite side for connection to the grid; a first controller configured to monitor an amount of energy stored in the store and an amount of energy stored in the source and to selectively control the first switch to close to transfer energy from the source to the store provided that the amount of energy stored in the source is above a minimum source amount or to transfer energy from the store to the source provided that the amount of energy stored in the source is below a maximum source amount; a second controller configured to monitor the amount of energy stored in the store and to control the second switch to close to transfer energy to the grid provided that the amount of energy in the store is above a minimum store threshold or to absorb energy from the grid provided that the amount of energy in the store is below a maximum store threshold, wherein the power regulation system operates in accordance with a regulation signal to transfer energy to the grid or to absorb energy from the grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power regulation system for an AC grid, comprising:
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a capacitive store able to supply energy on command within a first response time; a first switch connected at one side to the capacitive store and for connection, at an opposite side, to a kinetic battery able, at least intermittently, to supply energy on command within a second response time, the first response time being faster than the second response time; a second switch comprising a power inverter, the second switch connected at one side to the capacitive store and for connection at an opposite side to said AC grid; a first controller connected to monitor voltage of said capacitive store and an amount of energy stored in the kinetic battery, the first controller being configured to control the first switch to close to transfer energy from the kinetic battery to the capacitive store, when the voltage of the capacitive store falls below a lower store threshold and the amount of energy stored in the kinetic battery is above a minimum battery amount in order to increase the voltage of the capacitive store above the lower store threshold; a second controller to monitor the voltage of the capacitive store and intermittently receive a request to supply energy to the grid from the capacitive store, the second controller being configured to control the second switch to close to transfer energy from the capacitive store through the power inverter to the AC grid on receiving the request to supply the energy to the grid, and provided that the voltage of the capacitive store is above a minimum store threshold. - View Dependent Claims (13)
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14. A power regulation system for an electrical grid, comprising:
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a store of electrical energy able to supply energy on command within a first response time; a first switch connected at one side to the store of electrical energy and for connection, at an opposite side, to a source of electrical energy able, at least intermittently, to supply energy on command within a second response time, the first response time being faster than the second response time; a second switch connected at one side to the store and for connection at an opposite side to the electrical grid; a first controller for monitoring an amount of energy stored in the store and an amount of energy stored in the source and for, controlling the first switch to close to transfer energy from the source to the store when the amount of energy stored in the store falls below a lower store threshold and the amount of energy stored in the source is above a minimum source amount in order to increase the amount of energy stored in the store to an amount above the lower store threshold; a second controller for monitoring the amount of energy stored in the store and being configured to receive an indication of a characteristic of power in the grid and to control the second switch to close to transfer energy from the store to the grid provided that the characteristic of power in the grid indicates a need for additional energy in the grid and the amount of energy stored in the store is above a minimum store threshold. - View Dependent Claims (15, 16)
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17. A method for regulating power on a grid comprising:
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(a) in a first process; (i) monitoring an amount of energy stored in a store and an amount of energy stored in a source; (ii) transferring energy from the source to the store when the amount of energy stored in the store falls below a lower store threshold and the amount of energy in the source exceeds a minimum source amount in order to increase the amount of energy stored in the store to an amount at or above the lower store threshold; (b) in a second process independent of the first process; (i) monitoring energy stored in the store; and (ii) transferring energy from the store to the grid on receiving an indication of a need for additional energy in the grid, provided that the amount of energy stored in the store exceeds a minimum store threshold. - View Dependent Claims (18, 19, 20, 21)
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Specification