CONTROL UNIT FOR AN ELECTRICAL GENERATION/CONSUMPTION SYSTEM

• US 20140207302A1
• Filed: 06/06/2012
• Published: 07/24/2014
• Est. Priority Date: 06/10/2011
• Status: Active Grant

• Current Assignee: Electricitã© De France
• Original Assignee: Electricitã© De France
• Inventors: Delon, Pierre-Etienne, Normand, Olivier
• Granted Patent: US 9,595,832 B2
• Time in Patent Office: Days
• US Class Current: 700/295
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: H02J 3/381 Dispersed generators
• CPC Class Codes: H02J 4/00 Circuit arrangements for mains or distribution networks not specified as ac or dc
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

The invention relates to a control unit for an electrical generation/consumption system including generation sources (200) and consumption units (300) connected by a distribution network (100), including a control center (400) which transmits, to controllable consumption units (310) and to controllable generation sources (210), modulation orders based on warning information received from an external operator (500), on information relating to the potential of the respective suppression of units (310), and on information relating to the respective potential of generation or of a decrease in generation of sources (210), or of the suppression of the latter, at each unit (310), a module (312) which transmits, to the center (400), data updated in real time representing the potential modulation suppression of the unit (310), and at the sources (210), a module (212) which transmits, to the control center (400), data which is updated in real time and which is representative of the potential of generation or of the decrease in the generation of the source (210), or of the suppression of the latter.

Claims

1. A control assembly for controlling an electricity production/consumption system comprising electricity production sources (200) and consumption sources (300) connected via a distribution network (100), characterized by the fact that it comprises:

a control centre (400) adapted to transmit modulation orders to controllable consumption units (310) and to controllable electricity production sources (210), these orders corresponding to withdrawal or production orders respectively, based on alert data received from an external operator (500), on data representing the respective withdrawal potential of controllable consumption units (310) and on data representing the respective production or reduced production even withdrawal potential of production sources (210);

at each controllable consumption unit (310), a module (312) adapted to transmit data to the control centre (400) updated in real time representing the respective withdrawal potential of the associated unit (310); and

at least at some controllable production sources (210), a module (212) adapted to transmit data to the control centre (400) updated in real time representing the respective production or reduced production even withdrawal of the associated source (210).

2. The assembly according to claim 1, characterized in that the control centre (400) is adapted to give modulation orders to the controllable production sources (210) and to the controllable consumption units (310) at different time horizons.

3. The assembly according to claim 1, characterized in that the control centre (400) is adapted to give modulation orders to the controllable production sources (210) and to the controllable consumption units (310) at least as per a first time horizon on a day scale at a first pitch in minutes, for modulation orders sent the day before the application thereof, and a second time horizon on the scale of a few hours at a second pitch in minutes, preferably smaller than the first pitch, for modulation orders sent on the day of the application thereof.

4. The assembly according to claim 1, characterized in that the control centre (400) is adapted to give modulation orders to the controllable production sources (210) and to the controllable consumption units (310) as per two time horizons, one 24 h horizon at a pitch of 30 min for D−

1 modulation requests, and a 4 h horizon at a pith of 10 min for D modulation requests.

5. The assembly according to claim 1 characterized in that a controllable production source (210) or a controllable consumption unit (310) which receives two overlapping orders applies an incremental order resulting from the sum of both or else an order resulting from a predefined arbitration in accordance with the type of external operator (500) sending the alert period.

6. The assembly according to claim 1, characterized in that each module (212, 312) is adapted to provide data on its modulation potential, i.e withdrawal or production potential respectively at a time horizon longer than that of the control station (400) for orders given.

7. The assembly according to claim 1, characterized in that each module (212, 312) provides data on its modulation potential in real time, for the next 40 hours at a pitch of 10 minutes.

8. The assembly according to claim 1, characterized in that the time pitch for data provided by the modules (212, 312) is equal to the minimum pitch of the orders generated by the control station (400).

9. The assembly according to claim 1, characterized in that the modulation potential generated by the modules (212, 312) is described i) by data updated in real time and ii) by operating constraints entered into a withdrawal or production contract.

10. The assembly according to claim 9, characterized in that the data updated in real time comprise data chosen from among maximum adjustable power, which can be withdrawn or produced over a predetermined period, the marginal cost of modulation and the current state.

11. The assembly according to claim 9, characterized in that the data updated in real time comprise data related to use of a stock, for example a profile of default use of the stock, a profile of maximum variation in the stock, an initial stock level and a final minimum stock level.

12. The assembly according to claim 9, characterized in that the operating constraints comprise technical constraints of the controllable production sources (210) and controllable consumption units (310) and comfort restraints of the user of each unit (210) as well as financial clauses entered into a withdrawal contract, even a production contract.

13. The assembly according to claim 1, characterized in that the control centre (400) receives two types of alert periods from the external operator (500) corresponding to different probabilities of requests for withdrawal or production.

14. The assembly according to claim 1 characterized in that the pitch of the alert periods is equal to the pitch of the longest horizon of the orders.

15. The assembly according to claim 1, characterized in that the alerts are sent to the control station (400) by the external operator (500) the day before the application thereof.

16. The assembly according to claim 1, characterized in that the number, the time horizons and pitches of the modulation requests generated by the external operator (500) are identical to those of the modulation orders given by the control centre (400).

17. A method for controlling an electricity production/consumption system comprising electricity production sources (200) and consumption units (300) connected via an electricity distribution network (100), characterized in that it comprises the steps of:

generating data representing a modulation potential at the controllable consumption units (310) and controllable production sources (210) and generating alert periods at an external operator (500);

evaluating a modulation potential for all the controllable production sources (210) and controllable consumption units (310) at a control centre (400) on the basis of the aforementioned data;

addressing the result of this evaluation to the external operator (500);

generating general modulation requests at the external operator (500) and addressing these requests to the control centre (400);

evaluating individual modulation plans at the control centre (400) on the basis of requests given by the external operator and data received from the controllable production sources (210) and controllable consumption units (310); and

applying the resulting modulation orders received from the control station (400) to the controllable production sources (210) and controllable consumption units (310).

18. The method according to claim 17, characterized in that the control centre (400) initially maximises individual modulation potentials over priority alert periods, then over alert periods of secondary priority, taking into account the constraints entered into withdrawal or production contracts.

19. The method according to claim 17, characterized in that the control centre (400) also calculates the aggregate marginal modulation cost of the controllable production sources (210) and controllable consumption units (310).

20. The method according to claim 17, characterized in that the control centre (400) takes into account the stocks of the consumption units (310) and production sources (210).