Methods and Apparatus for Design and Control of Multi-port Power Electronic Interface for Renewable Energy Sources
First Claim
1. An energy management system, comprising:
- a first port configured for bidirectional flow of energy and connected to an energy storage device;
a second port configured for unidirectional flow of energy and connected to an energy source device;
a third port configured for bidirectional flow of energy and connected to a utility grid; and
a unified control system wherein the unified control system comprises control logic configured to operate in a generation mode, a recovery mode, or an emergency/UPS mode and operable to simultaneously control energy flow between the first, second, and third ports based on at least two factors from the group consisting of;
a state of charge of the energy storage device,a state of the energy source device, anda state of the utility grid.
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Abstract
Methods and systems for energy management are disclosed. An example system includes a first port connected to an energy storage device for bidirectional flow of energy, a second port connected to an energy source device for unidirectional flow of energy, a third port connected to a utility grid for bidirectional flow of energy, and a unified control system with control logic configured to simultaneously control energy flow between the first, second, and third ports based on at least two factors from the group consisting of: a state of charge of the energy storage device, a state of the energy source device, and a state of the utility grid. Other embodiments are described and claimed.
168 Citations
28 Claims
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1. An energy management system, comprising:
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a first port configured for bidirectional flow of energy and connected to an energy storage device; a second port configured for unidirectional flow of energy and connected to an energy source device; a third port configured for bidirectional flow of energy and connected to a utility grid; and a unified control system wherein the unified control system comprises control logic configured to operate in a generation mode, a recovery mode, or an emergency/UPS mode and operable to simultaneously control energy flow between the first, second, and third ports based on at least two factors from the group consisting of; a state of charge of the energy storage device, a state of the energy source device, and a state of the utility grid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for managing energy movement, the method comprising:
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receiving, at a unified control system for a multi-port power interface operable to provide for energy flow between first, second, and third ports of the multi-port power interface, information pertaining to a state of charge of an energy storage device connected to the first port; receiving, at the unified control system, information pertaining to a state of an energy source device connected to the second port; receiving, at the unified control system, information pertaining to a state of a utility grid connected to the third port; and automatically determining whether operational characteristics of the multi-port power interface should be modified, based on at least two factors from the group consisting of; the information pertaining to the state of charge of the energy storage device; the information pertaining to the state of the energy source device; and the information pertaining to the state of the utility grid; and in response to determining that operational characteristics of the multi-port power interface should be modified, automatically modifying the operational characteristics of the multi-port power interface accordingly; wherein the operation of automatically determining whether operational characteristics of the multi-port power interface should be modified comprises selecting between a configuration that causes the multi-port power interface to draw energy from the energy storage device, and a configuration that causes the multi-port power interface to supply energy to the energy storage device. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification