Electrical power control method and system
AssigneeApplied Hybrid Energy Pty Ltd
InventorsJohn Charles Ellice-Flint, Petar Branko Atanackovic
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Abstract
A method and system for controlling the transfer of electrical power between a first electrical network and a second electrical network is disclosed. The method includes receiving at the second electrical network pricing information from the first electrical network, the pricing information associated with the supply of electrical power between the first electrical network and the second electrical network and modifying a demand characteristic of the second electrical network based on the pricing information.
Claims28
A method for controlling the transfer of electrical power between a first electrical network and an end-user second electrical network, wherein the first electrical network is an electrically interconnected utility-scale grid under the control of a market operator comprising at least a first power generation source having an associated first operating efficiency and a second power generation source having an associated second operating efficiency, and comprising a transmission and/or distribution interconnection network operable to supply power from the electrically interconnected utility-scale grid to the end-user second electrical network, comprising:
- determining by the first power generation source a first temporal power pricing forecast based on the future generation and supply capacity of the first power generation source to the electrically interconnected utility-scale grid;
- determining by the second power generation source a second temporal power pricing forecast based on the future generation and supply capacity of the second power generation source to the electrically interconnected utility-scale grid;
- selecting by the end-user second electrical network a selected power generation source from the first power generation source or the second power generation source based on a comparison of the first operating efficiency and the second operating efficiency of the first and second power generation sources;
- operably linking the end-user second electrical network to the selected power generation source by providing a corresponding temporal power pricing forecast of the selected power generation source covering a forecast time period to the end-user second electrical network;
- and
- synchronising a demand characteristic of the end-user second electrical network to the selected power generation source based on the corresponding temporal power pricing forecast of the selected power generation source.
An electrical power switching system comprising:
- a first electrical network, wherein the first electrical network is an electrically interconnected utility-scale grid under the control of a market operator comprising at least a first power generation source having an associated first operating efficiency and a second power generating source having an associated second operating efficiency and a transmission and/or distribution interconnection network operable to supply power from the electrically interconnected utility-scale grid to an end-user second electrical network,
- the first power generation source provides a first temporal power pricing forecast based on the future generation and supply capacity of the first power generation source to the electrically interconnected utility-scale grid;
- the second power generation source provides a second temporal power pricing forecast based on the future generation and supply capacity of the second power generation source to the electrically interconnected utility-scale grid;
- an end-user second electrical network operable to receive power from the electrically interconnected utility-scale grid and further operable to select a selected power generation source from the first power generation source or the second power generation source based on a comparison of the first operating efficiency and the second operating efficiency of the first and second power generation sources and operably link to the selected power generation source by receiving a corresponding temporal power pricing forecast of the selected power generation source covering a forecast time period;
- at least one power measurement device for providing a real-time measurement of the flow of electrical power between the electrically interconnected utility-scale grid and the end-user second electrical networks;
- a power flow modulation device operable to modulate the electrical power consumption between the electrically interconnected utility-scale grid and the end-user second electrical network;
- and
- a controller receiving as inputs the output of the at least one power measurement device and the corresponding temporal power pricing forecast of the selected power generation source and operable to control the power flow modulation device with time dependent programmable events to synchronise a demand characteristic of the end-user second electrical network to the selected power generation source based on the corresponding temporal power pricing forecast of the selected power generation source.
An electrical power control system for interfacing an end-user electrical network to a supply electrical network, wherein the supply electrical network is an electrically interconnected utility-scale grid under the control of a market operator comprising at least a first power generation source having an associated first operating efficiency and a second power generating source having an associated second operating efficiency and a transmission and/or distribution interconnection network operable to supply power from the electrically interconnected utility-scale grid to the end-user electrical network, the system including:
- at least one controller and an end-user load, the controller operable to:
- receive a first temporal power pricing forecast based on the future generation and supply capacity of the first power generation source to the electrically interconnected utility-scale grid;
- and
- selecting a selected power generation source from the first power generation source or the second power generation source based on a comparison of the first operating efficiency and the second operating efficiency of the first and second power generation sources;
- and
- operably link the end-user electrical network to the selected power generation source by receiving a corresponding temporal power pricing forecast of the selected power generation source covering a forecast time period from the selected power generation source;
- at least one of an on-site power generation plant and/or a power storage plant controlled by the controller that forms an end-user electrical system configured to produce bi-directional electrical power transfer to and from the supply electrical network and the end-user electrical network;
- a power measurement device for recording electrical flow data associated with time dependent electrical energy flows between the supply electrical network and the end-user load, wherein the data collected by the power measurement device is capable of being interrogated or queried remotely by both the market operator and the end-user, the power measurement device operable to store electrical flow data over a predetermined time period;
- and
- at least one transfer switch controllable by the controller to control an external electrical device to synchronise a demand characteristic of the end-user electrical network based on the corresponding temporal power pricing forecast of the selected power generation source.
A method for controlling the time dependent transfer of electrical power by a first electrical network and the time dependent consumption of power by a second electrical network, wherein the first electrical network is an electrically interconnected utility-scale grid under the control of a market operator comprising at least a first power generation source having an associated first operating efficiency and a second power generation source having an associated second operating efficiency, and a transmission and/or distribution interconnection network operable to supply power from the electrically interconnected utility-scale grid to the second electrical network, comprising:
- determining by the first power generation source a first temporal power pricing forecast based on the future generation and supply capacity of the first power generation source to the electrically interconnected utility-scale grid;
- determining by the second power generation source a second temporal power pricing forecast based on the future generation and supply capacity of the second power generation source to the electrically interconnected utility-scale grid;
- selecting by the second electrical network a selected power generation source from the first power generation source or the second power generation source based on a comparison of the first operating efficiency and the second operating efficiency of the first and second power generation sources;
- negotiating with the selected power generation source of the first electrical network for a purchase of the electrical power based on a corresponding temporal power pricing forecast of the selected power generation source covering a forecast time period;
- operably linking the second electrical network to the selected power generation source in accordance with the corresponding temporal power pricing forecast;
- and
- synchronising a demand characteristic of the second electrical network to the selected power generation source based on the corresponding temporal power pricing forecast of the selected power generation source.
Dependencies are inferred from the claim text.