METHODS AND APPARATUS FOR OPERATING A LIGHTING NETWORK ACCORDING TO ENERGY DEMAND AND ENERGY SUPPLY

• US 20150102747A1
• Filed: 03/11/2013
• Published: 04/16/2015
• Est. Priority Date: 03/28/2012
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Wang, Jianfeng, Cavalcanti, Dave Alberto Tavares
• Granted Patent: US 9,338,861 B2
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00017 using optical fiber
• CPC Class Codes: H02J 13/00028 involving the use of Internet protocols
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 2310/14 The load or loads being home appliances
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: H05B 47/16 by timing means
• CPC Class Codes: H05B 47/18 via data-bus transmission
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection
• 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 20/246 the system involving the remote operation of lamps or lighting equipment
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses

Abstract

Methods and apparatus related to operation of a plurality of lighting units of a lighting network according to energy demand and/or energy supply.

Claims

1. A method of proactively adjusting energy demand of at least one outdoor lighting network connected to a smart power grid, comprising:

collecting first zone energy supply information and first zone load demand information of each of a plurality of first zone lighting units of said lighting network for each of a plurality of first zone subintervals (P1);

collecting second zone energy supply information and second zone load demand information of each of a plurality of second zone lighting units of said lighting network for each of a plurality of second zone subintervals (P1);

receiving electricity prices from a utility for a plurality of future first zone subintervals of said first zone subintervals and for a plurality of future second zone subintervals of said second zone subintervals

proactively adjusting a first zone light operation strategy of said first zone lighting units prior to said future first zone subintervals based on said first zone energy supply information, said first zone load demand information, and said electricity prices (P3); and

proactively adjusting a second zone light operation strategy of said second zone lighting units prior to said future second zone subintervals based on said second zone energy supply information, said second zone load demand information, and said electricity prices (P3).

2. The method of claim 1, further comprising bidding said electricity prices from said utility based on said first zone load demand information and said second zone load demand information (P2).

3. The method of claim 1, wherein said step of proactively adjusting said first zone light operation strategy of said first zone lighting units prior to said future first zone subintervals is also based on first zone lighting regulation requirements of said first zone.

4. The method of claim 3, wherein said step of proactively adjusting said second zone light operation strategy of said second zone lighting units prior to said future second zone subintervals is also based on second zone lighting regulation requirements of said second zone.

5. The method of claim 4, wherein said second zone lighting regulation requirements are of lesser priority than said first zone lighting regulation requirements and wherein said second zone light operation strategy is adjusted more drastically than said first zone light operation strategy.

6. The method of claim 1, wherein said step of proactively adjusting said first zone light operation strategy of said first zone lighting units prior to said future first zone subintervals is also based on dimming capabilities of said first zone lighting units.

7. The method of claim 1, wherein said step of proactively adjusting said first zone light operation strategy of said first zone lighting units includes dimming said first zone lighting units according to one of a plurality of first zone lighting unit dimming vectors each corresponding to one of a plurality of first zone demand response levels.

8. The method of claim 7, wherein said step of proactively adjusting said second zone light operation strategy of said second zone lighting units includes dimming said second zone lighting units according to one of a plurality of second zone lighting unit dimming vectors each corresponding to one of a plurality of second zone demand response levels.

9. The method of claim 8, wherein said first zone lighting unit dimming vectors and said first zone demand response levels are normalized to said second zone lighting unit dimming vectors and said second zone demand response levels, in terms of relative lighting performance to best-practice lighting performance.

10. The method of claim 1, wherein said step of proactively adjusting said first zone light operation strategy of said first zone lighting units prior to said future first zone subintervals includes proactively charging an off-grid power source with said smart power grid prior to utilizing said off-grid power source to power at least one of said first zone lighting units during at least one of said future first zone subintervals.

11. A method of adjusting energy demand of at least one outdoor lighting network connected to a smart power grid, comprising:

dimming lighting units of said lighting network according to one of a plurality of lighting unit dimming vectors each corresponding to one of a plurality of demand response levels;

wherein said lighting units are dimmed most drastically at a highest of said demand response levels and are dimmed least drastically at a lowest of said demand response levels;

receiving a demand response signal corresponding to one of said demand response levels;

transmitting a dimming signal to cause dimming of said lighting units in correspondence with said demand response signal;

wherein when said demand response signal corresponds to said lowest of said demand response levels a first security level is applied to said dimming signal;

wherein when said demand response signal corresponds to said highest of said demand response levels a second security level is applied to said dimming signal;

wherein said second security level is more secure than said first security level.

12. The method of claim 11, wherein said first security level includes a single authentication method.

13. The method of claim 12, wherein said second security level includes at least two authentication methods.

14. The method of claim 11, further comprising dimming second lighting units of said lighting network according to one of a plurality of second lighting unit dimming vectors each corresponding to one of a plurality of said demand response levels, wherein said second lighting units are dimmed most drastically at said highest of said demand response levels and are dimmed least drastically at said lowest of said demand response levels.

15. The method of claim 14, wherein said first lighting unit dimming vectors are normalized to said second lighting unit dimming vectors and said second zone demand response levels, in terms of relative lighting performance to best-practice lighting performance.

16. The method of claim 15, wherein said first lighting units have first zone lighting regulation requirements and said second lighting units have second zone lighting regulation requirements.

17. The method of claim 16, wherein said second zone lighting regulation requirements are of lesser priority than said first zone lighting regulation requirements and wherein dimming is adjusted more drastically among said second lighting units than said first lighting units in response to said highest of said demand response levels.