METHOD FOR CONTROLLING THE RATIO BETWEEN SUPPLIED AND DRAWN ELECTRIC ENERGY IN AN ELECTRIC ENERGY SUPPLY NETWORK

摘要

A method for controlling the ratio between injected and extracted electric energy in an electric energy supply grid with a number of grid participants, which are selected from a group including producers, consumers, and storage devices, with at least two of the group being included. A grid state variable is used as a control variable, the value of said variable depending on the ratio between inserted and extracted electric energy and being ascertainable from the grid by the grid participants. The invention is characterized in that a number of grid participants ascertain the grid state variable from the grid and use said variable at least indirectly to control the grid in a decentralized manner based on a respective specific grid participant behavior.

主权项

1. A method to control a ratio between electrical energy injected into and extracted from an electric energy supply grid with a number of participants, which include energy producers and consumers comprising: using a grid state variable as a control variable whose value depends on the ratio between the electrical energy injected and extracted, and which is determinable by the grid participants from the grid itself, and at least some of the grid participants determining the grid state variable in a decentralised way from the grid and use said grid state variable at least indirectly to control their own behaviour concerning the injection of electric energy into the electric grid, also at least some of the consumers determining said grid state variable in a decentralized way and use said grid state variable at least indirectly to control their own behaviour concerning the extraction of electric energy from the energy supply grid, coupling the grid state variable with a valuation variable such that the valuation variable has a base value if the ratio between electric energy injected into and extracted from the grid is optimal, and if said ratio deviates from said optimum, deviating the valuation variable from the base value such that in case of a surplus of electrical energy injected, injection of energy into the grid creates a malus value and extraction creates a bonus value, and, in case of a surplus energy extracted, injection of energy into the grid creates a bonus value and extraction creates a malus value, and the grid participants which control their own specific grid participation behaviour that depends on at least one of the grid state variable or the valuation variable, determining the grid state variable within certain intervals or continuously and using the grid state value to control their own specific participation behaviour, and using a specific algorithm which considers a specific time dependent demand function and includes predictions of likely future developments of the value of the valuation variable, the specific algorithm combining the specific time dependent demand function with the predictions such that at least one of as little malus or as many bonus values as possible are generated.