Control of charging stations
First Claim
1. Method for controlling charging stations for electrical vehicles, comprising the steps ofgrouping at least two charging stations into a group, wherein several charging stations of the group are connected with a common transformer station,exchanging at least actual charging parameters of the charging stations within the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station,exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to the charging station, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading,estimating a future energy need of the common transformer station using a daily load curve of at least one charging station of the group from a database,creating a load prediction for the group as a function of at least the actual charging parameters, the charging prediction and the daily load curve,adaptively determining reference charging parameters, comprising at least a maximal charging amperage and a charging time for the charging stations of the group as a function of the load prediction, such that on the one hand the power provided by the charging stations of the group does not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations,negotiating of charging parameters with the electrical vehicle depending on the reference charging parameters, wherein in the event of varying reference charging parameters, the charging parameters are renegotiated with the electrical vehicle during a charging phase.
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Accused Products
Abstract
Method and device for controlling charging stations for electrical vehicles. In order to minimize peak power demands in at least two charging stations 10 combined into a group 12, actual charging parameters are exchanged 32 within the charging stations 10 within the group 12, a load prediction for the group 12 is created 34 depending on at least the actual charging parameters, and setpoint charging parameters for the charging stations 10 of the group 12 are determined 38 depending on the load prognosis.
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Citations
14 Claims
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1. Method for controlling charging stations for electrical vehicles, comprising the steps of
grouping at least two charging stations into a group, wherein several charging stations of the group are connected with a common transformer station, exchanging at least actual charging parameters of the charging stations within the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station, exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to the charging station, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, estimating a future energy need of the common transformer station using a daily load curve of at least one charging station of the group from a database, creating a load prediction for the group as a function of at least the actual charging parameters, the charging prediction and the daily load curve, adaptively determining reference charging parameters, comprising at least a maximal charging amperage and a charging time for the charging stations of the group as a function of the load prediction, such that on the one hand the power provided by the charging stations of the group does not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations, negotiating of charging parameters with the electrical vehicle depending on the reference charging parameters, wherein in the event of varying reference charging parameters, the charging parameters are renegotiated with the electrical vehicle during a charging phase.
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11. Charging stations for electrical vehicles comprising:
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allocation means for grouping the charging stations into a group of at least two charging stations, wherein several charging stations of the group are connected with a common transformer station, communication means operable for exchanging at least actual charging parameters within the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station, the communication means operable for exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to one of the charging stations, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, wherein in the event of varying reference charging parameters, the charging parameters can be renegotiated with the electrical vehicle during a charging phase, the communication means operable for receiving reference charging parameters in order to determine charging parameters for the charging of electrical vehicles, wherein the reference charging parameters comprise a charging amperage and a charging time and are adaptively determined depending on a load prediction for the group depending on at least one of the current charging parameters, the charging prediction and daily load curve defining a future energy need of the transformer station of at least one charging station, such that on the one hand the power provided by the charging stations of the group does not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations. - View Dependent Claims (14)
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12. Charging stations for electrical vehicles comprising:
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allocation means for grouping the charging station into a group of at least two charging stations, wherein several charging stations of the group are connected with a common transformer station, communication means operable for receiving at least actual charging parameters from charging stations of the group, wherein actual charging parameters comprise information regarding the currently provided electrical power at the charging station, the communication means operable for exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to one of the charging stations, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, computation means operable for estimating a future energy need of the transformer station using a daily load curve of at least one charging station of the group and for compiling a load prediction for the group depending on at least the received actual charging parameters, the charging prediction and the daily load curve and for adaptively determining reference charging parameters comprising a maximal charging amperage and a loading duration for the charging stations of the group depending on the load prediction, such that on the one hand the power provided by the charging stations of the group do not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations, wherein the communication means is configured to transmit must charging parameters to charging stations of the group.
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13. Low-voltage transformer station comprising:
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allocation means for grouping charging stations into a group of at least two charging stations, wherein several charging stations of the group are connected with a common transformer station, communication means operable for receiving at least actual charging parameters from charging stations of the group, wherein the actual charging parameters comprise information regarding the currently provided electrical power at the charging station, the communication means operable for exchanging a charging prediction being established by a charging controller being arranged in an electrical vehicle being connected to one of the charging station, comprising a current load curve for charging the electrical vehicle in the remaining duration of loading, computation means for estimating a future energy need of the transformer station using a daily load curve of at least one charging station of the group and for compiling a load prediction for the group depending on at least the received actual charging parameters, the charging prediction and the daily load curve and for adaptively determining reference charging parameters comprising a maximal charging amperage and a loading duration for the charging stations of the group depending on the load prediction, such that on the one hand the power provided by the charging stations of the group do not exceed a maximum transformer power and on the other hand the electrical vehicles connected to the charging stations of the group receive the power required for charging their batteries within their respective remaining charging durations.
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Specification