METHODS AND APPARATUS FOR ALLOCATING AMOUNTS OF ENERGY

• US 20140222235A1
• Filed: 05/30/2012
• Published: 08/07/2014
• Est. Priority Date: 06/24/2011
• Status: Active Grant

• Current Assignee: Siemens AG
• Original Assignee: Jorg Heuer
• Inventors: Heuer, Jrg, Kuntschke, Richard, Winter, Martin, Glomb, Christian
• Granted Patent: US 9,577,434 B2
• Time in Patent Office: Days
• US Class Current: 700/295
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 4/00 Circuit arrangements for mains or distribution networks not specified as ac or dc

Abstract

The present invention relates to methods and apparatuses for allocating amounts of energy for prosumers, wherein the prosumers provide minimum and maximum amounts of energy for a future interval of time and the respective amounts of energy from the prosumers are generated in such a manner that, on the one hand, a relative position of the amount of energy within an interval for the particular prosumer, as defined by the minimum amount of energy and the maximum amount of energy, assumes an identical value for all prosumers and, on the other hand, a sum of the amounts of energy from all prosumers produces a value of zero. The invention can be used in the distribution of amounts of energy in a power supply system having conventional energy producers and energy consumers as well as in novel participants in the power supply system which can both consume and provide energy, for example an electric vehicle.

Claims

1. A method for allocating an amount of energy per prosumer, the method comprising:

determining a maximum amount of energy and a minimum amount of energy for each prosumer;

generating the respective amount of energy such that;

a relative position of the amount of energy is produced within an interval, defined by the minimum amount of energy and the maximum amount of energy, of the respective prosumer such that the relative positions of the prosumers assume an identical value; and

a sum of the amounts of energy yields a value of zero.

2. The method of claim 1, further comprising:

generating a maximum total amount of energy by summing the maximum amounts of energy;

generating a minimum total amount of energy by summing the minimum amounts of energy;

generating a first amount of energy by forming a difference between the maximum total amount of energy and the minimum total amount of energy;

generating a respective second amount of energy per prosumer by forming a difference between the respective maximum amount of energy and the respective minimum amount of energy;

generating an energy factor per prosumer by multiplying the respective second amount of energy by a reciprocal of the first amount of energy; and

generating the respective amount of energy by adding the respective minimum amount of energy and a product of an absolute value of the minimum total amount of energy and the respective energy factor.

3. The method of claim 1, further comprising:

generating a maximum total amount of energy by summing the maximum amounts of energy;

generating a minimum total amount of energy by summing the minimum amounts of energy;

generating an energy ratio by multiplying the maximum total amount of energy by the reciprocal of the minimum total amount of energy;

generating an intermediate value per prosumer by subtracting a product of the energy ratio and the respective minimum amount of energy from the respective maximum amount of energy; and

generating the respective amount of energy per prosumer by multiplying the respective intermediate value by a reciprocal of a subtraction of the energy ratio from a value of one.

4. The method of claim 2, wherein the allocation of the amounts of energy is respectively carried out for a future time interval.

5. The method of claim 4, wherein a length of the future time interval is set equidistantly.

6. The method of claim 4, wherein a length of the future time interval is set such that in the case of an increase in a difference between the maximum total amount of energy and the minimum total amount of energy of a current time interval and a difference between the maximum total amount of energy and the minimum total amount of energy of a time interval earlier than the current time interval, the length of the future time interval is dynamically adapted by a comparison of the length of the current time interval.

7. The method of claim 6, further comprising:

assigning a cost function per prosumer, the respective cost function specifying costs for values of the amounts of energy within the minimum amount of energy and the maximum amount of energy of the respective prosumer;

selecting a first agent and a second agent from the prosumers in such that the cost function of the first agent has a slope of maximum absolute value, and the cost function of the second agent has a slope of minimum absolute value, the slope of maximum absolute value and the slope of minimum absolute value referring respectively to a slope of the respective cost functions in the amount of energy associated with the agent; and

generating new amounts of energy of the first agent and the second agent such that;

a differential value between the respective amount of energy and the respective new amount of energy of the first agent becomes identical to a differential value between the respective new amount of energy and the respective amount of energy of the second agent;

the new amounts of energy of the first agent and the second agent are respectively selected within the minimum amount of energy associated with the first agent and second agent and the associated maximum amount of energy; and

a sum of the respective costs of the new amounts of energy is smaller than a sum of the respective costs of the amounts of energy of the first agent and second agent.

8. The method of claim 7, wherein the amounts of energy of the prosumers represented by the first agent and the second agent are replaced by the new amounts of energy;

and

wherein the setting of the length of the future time interval is repeated.

10. The method of claim 6, wherein the length of the future time interval is set such that in the case of the increase in the difference between the maximum total amount of energy and the minimum total amount of energy of the current time interval and the difference between the maximum total amount of energy and the minimum total amount of energy of the time interval earlier than the current time interval, the length of the future time interval is shortened by the comparison of the length of the current time interval.

11. The method of claim 3, wherein the allocation of the amounts of energy is respectively carried out for a future time interval.

12. The method of claim 11, wherein a length of the future time interval is set equidistantly.

13. The method of claim 11, wherein a length of the future time interval is set such that in the case of an increase in a difference between the maximum total amount of energy and the minimum total amount of energy of a current time interval and a difference between the maximum total amount of energy and the minimum total amount of energy of a time interval earlier than the current time interval, the length of the future time interval is dynamically adapted by a comparison of the length of the current time interval.

9. A device for allocating an amount of energy per prosumer, the device comprising:

a processor configured for;

determining a maximum amount of energy and a minimum amount of energy for each prosumer; and

generating the respective amount of energy such that;

a relative position of the amount of energy is produced within an interval, defined by the minimum amount of energy and the maximum amount of energy, of the respective prosumer such that the relative positions of the prosumers assume an identical value; and

a sum of the amounts of energy yields a value of zero.