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US 12,658,719 B2Granted
Charging system for electric vehicles
AssigneeSTABL Energy GmbH
InventorsArthur Singer, Ralf Neumann
Life of this patent
Estimating the term…
Abstract
A charging system for electric vehicles includes a number N of charge ports, each charge port having an interface for power exchange with an electric vehicle, a number M of modular energy storage direct converter systems (MESDCS), a switchable connection matrix, and a control system. The control system is configured to control an output voltage of each MESDCS. The switchable connection matrix is configured to connect one or more selected MESDCS with each given charge port and is further configured to connect one or more selected MESDCS with a power source.
Claims14
A charging system for electric vehicles, comprising:
- a number N of charge ports, each charge port having an interface for power exchange with an electric vehicle, wherein N is an integer greater than 1,
- a number M of modular energy storage direct converter systems (MESDCS), wherein M is an integer greater than zero,
- a switchable connection matrix, and
- a control system,
- wherein each MESDCS comprises a converter arm having a first end and a second end and comprising a plurality of sequentially interconnected modules, wherein each module of said plurality of sequentially interconnected modules comprises:
- at least one first terminal and at least one second terminal,
- a storage element configured for storing of electrical energy or an energy conversion element, and
- a plurality of module switches,
- wherein in each two adjacent modules, of the plurality of sequentially interconnected modules, the at least one first terminal of a first adjacent module is connected either directly or via an intermediate component to the at least one second terminal of a second adjacent module,
- wherein said plurality of module switches is configured to provide a short circuit between the at least one first terminal and the at least one second terminal, or to connect the storage element or energy conversion element between the at least one first terminal and the at least one second terminal,
- wherein said control system is configured to control an output voltage of each MESDCS, based on information regarding a current charge state of the storage element or voltage or output power of the energy conversion element, and by actuating at least a part of said plurality of module switches depending on said information to have the converter arm supply said output voltage,
- and wherein said switchable connection matrix is configured to connect, under control of said control system, one or more selected MESDCS with at least one charge port, and is further configured to connect the one or more selected MESDCS, of said number M of MESDCS, with a power source,
- and wherein the control system is configured to ensure that no MESDCS is simultaneously connected to the power source and to the at least one charge port;
- wherein the connection matrix is configured to connect, under control of said control system, the one or more selected MESDCS directly or indirectly with a ground associated with the power source, when said one or more selected MESDCS is connected with a phase of said power source, and to disconnect said one or more selected MESDCS from the ground of the power source when said one or more selected MESDCS is/are connected with the at least one charge port and to connect said one or more selected MESDCS to directly or indirectly to the ground of the at least one charge port.
11 more elements
A method of operating a charging system for electric vehicles, said charging system comprising:
- a number N of charge ports, each charge port having an interface for power exchange with an electric vehicle, where N is an integer greater than 1,
- a number M of modular energy storage direct converter systems (MESDCS), each MESDCS comprising a converter arm having a first end and a second end, wherein M is an integer greater than zero,
- a switchable connection matrix, and
- a control system,
- wherein said method comprises configuring at least one of the MESDCS, the at least one of the MESDCS including a plurality of sequentially interconnected modules, wherein in each two adjacent of said sequentially interconnected modules at least one first terminal of one module either directly or via an intermediate component is connected to at least one second terminal of the other module, and
- controlling an output voltage of each MESDCS based on information regarding a current charge state of the storage elements or voltage or output power of energy conversion elements, by actuating at least a part of a plurality of module switches depending on this information for providing a short circuit between the at least one first terminal and the at least one second terminal, or for connecting the storage elements configured for storing of electrical energy or the energy conversion elements between the at least one first terminal and the at least one second terminal, such that the converter arm as a whole supplies said output voltage,
- and wherein said method comprises not having connected one or more selected MESDCS with each given charge port and the one or more selected MESDCS with a power source at the same time,
- wherein the method is carried out to constantly avoid simultaneous connection of any MESDCS is simultaneously connected to the power source and to a charge port, of the charge ports, wherein the method preferably further comprises selectively connecting, by means of said connection matrix, one or more MESDCS directly or indirectly with a ground associated with the power source when said one or more selected MESDCS is connected with a phase of said power source, and disconnecting said one or more MESDCS from the ground of the power source when said one or more selected MESDCS are connected with said charge Port.
5 more elements
Dependencies are inferred from the claim text.