Smart electrical wire-devices and premises power management system

• US 8,487,634 B2
• Filed: 09/25/2009
• Issued: 07/16/2013
• Est. Priority Date: 09/25/2008
• Status: Active Grant

• Current Assignee: dAlchemy, Inc.
• Original Assignee: Enmetric Systems, Inc.
• Inventors: Masters, Gilbert J., Pernia, Marcos S.
• Primary Examiner(s): PATEL, PARESH H
• Application Number:
  US12/567,721
• Publication Number:
  US 20100145536A1
• Time in Patent Office: 1,390 Days
• Field of Search: None
• US Class Current: 324/512
• CPC Class Codes: G01R 19/2513 Arrangements for monitoring electric power systems, e.g. power lines or loads; Logging
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 2310/10 The network having a local or delimited stationary reach
• CPC Class Codes: H02J 2310/60 Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02A 30/60 Planning or developing urban green infrastructure
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/242 Home appliances
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses

Abstract

Disclosed is power management system based on a “smart” wire-device installable in an electric power line (i.e., the “drop-grid” or “micro-grid”) at a premises, such as a business or residence. The “smart” wire-device includes a management node integrated into the form of a typical electrical power outlet, circuit breaker or switch as would be found in such a premises, and is installable in the power line in a manner similar to existing wire-device. The “smart” wire-device requires no special skill to install beyond that of an ordinary skilled electrician. The present wire-device is “smart” in that the node has a detector circuit that senses the electrical characteristic(s) of the power line at the point at which it is installed. The node'"'"'s communications circuit signals what it detects to a spatially separated remote controller device, and receives instructions from one or more spatially separated remote controller devices. The node'"'"'s control mechanism operates a remotely controllable maker/breaker means in response to the received instructions to alter the condition of the electrical power output of the wire-device.

Claims

1. A remotely controllable, condition sensing wire-device installable in an electric power line, for measuring an electrical property of said electric power line, said condition sensing wire-device comprising:

a current-carrying electrical appliance wiring-device, the appliance wiring-device having a locally controlled maker/breaker means for opening and closing said electric power line;

a management node, the management node including;

a control mechanism having a remotely controllable maker/breaker means separate from the locally controlled maker/breaker means of the electrical wiring-device, the remotely controllable maker/breaker means for controlling the condition of the control mechanism, in response to a internal device signal from a communications circuit;

a sensing circuit in electrical communication with said electric power line and the control mechanism, the sensing circuit measuring said electrical property of said electrical line and communicating an internal device signal of a result of the measuring and the sensing;

a communications circuit adapted to receive, process and route internal device signals, and to transmit external output signals and receive external input signals from a spatially separated, remote signal device via an I/O interface port; and

the management node physically integrated with the electrical appliance wiring-device to provide said condition sensing wire-device in a unitary form.

2. The remotely controllable, condition sensing wire-device of claim 1, wherein the electrical appliance wiring-device is a consumer-appliance electrical circuit maker/breaker for connecting an electrical consumer-appliance to said electrical power line, the consumer-appliance electrical circuit maker/breaker having a form selected from the group of appliance wiring-device forms consisting of:

an electrical appliance outlet;

a surface-mount electrical appliance switch; and

an electrical circuit breaker.

3. The remotely controllable, condition sensing wire-device of claim 1, wherein said electric power line is a residential-type consumer premises drop-side of an electrical utility service.

4. The remotely controllable, condition sensing wire-device of claim 1, wherein the sensing circuit of the management node includes a line sensor adapted to enable the sensing circuit to measure at least one electrical property of the electric power line.

5. The remotely controllable, condition sensing wire-device of claim 1, wherein the sensing circuit of the management node includes a self-sensor adapted to enable the sensing circuit to sense a condition of the control mechanism.

6. The remotely controllable, condition sensing wire-device of claim 1, wherein the sensing circuit of the management node includes a line sensor adapted to enable the sensing circuit to measure at least one electrical property of the electric power line selected from the group of electrical properties consisting of:

line current;

line voltage;

line frequency;

electrical ground condition;

wattage;

line power factor;

line electrical noise; and

line impedance.

7. The remotely controllable, condition sensing wire-device of claim 1, wherein the remotely controllable maker/breaker means of the control mechanism is operable in response to an internal device signal from the communications circuit to control the condition of the control mechanism by opening and closing a node portion of said electrical power line.

8. The remotely controllable, condition sensing wire-device of claim 1, wherein the remotely controllable maker/breaker means of the control mechanism is operable in response to an internal device signal from the communications circuit to alter said electrical property of said electrical power line without opening/breaking a node portion of said electrical power line.

9. The remotely controllable, condition sensing wire-device of claim 1, wherein the remotely controllable maker/breaker means of the control mechanism is operable in response to an internal device signal from the communications circuit to alter said electrical property of said electrical power line by opening/breaking a node portion of said electrical power line for less than a full duty-cycle.

10. The remotely controllable, condition sensing wire-device of claim 1, wherein the communications circuit is adapted to transmit and to receive external signals via a wire I/O interface.

11. The remotely controllable, condition sensing wire-device of claim 1, wherein the communications circuit is adapted to transmit and to receive external signals via a wireless I/O interface.

12. The remotely controllable, condition sensing wire-device of claim 1, wherein the communications circuit is adapted to transmit and to receive external signals via at least two communication interfaces selected from the group of interfaces consisting of:

a wire I/O interface and a wireless I/O interface.

13. The remotely controllable, condition sensing wire-device of claim 1, wherein the management node includes a manual override mechanism, the manual override mechanism having a user interface disposed on the Smart Wire Device to be accessible to a user, and adapted to allow the user to alter the condition of the management node.

14. The management node of claim 13, wherein the override mechanism is selected from the group of mechanisms consisting of:

an electronic override circuit and a mechanical override.

15. The management node of claim 13, wherein the override mechanism includes a tell-tale to indicate a current setting of the override mechanism.

16. The remotely controllable, condition sensing wire-device of claim 1, wherein the spatially separated, remote signal device in communication with the communications circuit is a system controller device.

17. The remotely controllable, condition sensing wire-device of claim 1, wherein the spatially separated, remote signal device in communication with the communications circuit is another Smart Wire-Device.

18. The remotely controllable, condition sensing wire-device of claim 1, wherein the current-carrying electrical appliance wiring-device is an electrical inverter in electrical communication with a local power feed line and a micro-grid power line, the inverter providing an interface between the local power feed line and the electric power line;

and wherein the sensor circuit of the management node includes at least a feed line sensor measuring a condition of the power feed line, and a micro-grid line sensor measuring a condition of the micro-grid power line.

19. The smart inverter wire device of claim 18, wherein the management node communicates directly with the internal circuitry of the inverter via an integral serial data port, providing the ability to communicate data in addition to data from the sensors.