A system to store and to transmit electrical power includes at least one storage system, at least one bidirectional converter, and at least one load coupled to a network, wherein the load is adapted to both, receive electrical power from the network and supply electrical power to the network. A firs
A system to store and to transmit electrical power includes at least one storage system, at least one bidirectional converter, and at least one load coupled to a network, wherein the load is adapted to both, receive electrical power from the network and supply electrical power to the network. A first storage system is used to store electrical power of a power source. The first storage system is connected to a first bidirectional converter by a DC power transmission system. The first bidirectional converter is connected to an AC network and the AC network is connected to a first load.
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1. A system to store and to transmit electrical power, comprising a storage system comprising a central storage system used to store electrical power of at least one power source,an HVDC power transmission system to which the central storage system is connected,a first bidirectional converter connec
1. A system to store and to transmit electrical power, comprising a storage system comprising a central storage system used to store electrical power of at least one power source,an HVDC power transmission system to which the central storage system is connected,a first bidirectional converter connected at one side to the HVDC power transmission system,at least one an AC network connected to another side of the first bidirectional converter,a first load connected to the AC network and adapted to both, receive electrical power from the AC network and supply electrical power to the AC network,a second bidirectional converter connected at one side to the HVDC power transmission system and at another side to the AC network, anda second load connected to the AC network and adapted to both, receive electrical power from the AC network and supply electrical power to the AC network;wherein the AC network comprises a switch being used either to couple the first bidirectional converter and the first load to the second bidirectional converter and the second load or to decouple the first bidirectional converter and the first load from the second bidirectional converter and the second load. 2. The system according to claim 1, wherein each of the first and the second loads is a vehicle. 3. The system according to claim 2, wherein the vehicle is a railway vehicle. 4. The system according to claim 1, wherein the central storage system is connected to the HVDC transmission system directly. 5. The system according to claim 1, wherein the central storage system is connected to the HVDC transmission system through an AC/DC converter or through a DC/DC converter. 6. The system according to claim 5, wherein the AC/DC converter or the DC/DC converter is a bidirectional converter. 7. The system according to claim 1, wherein the central storage system comprises at least one element selected from the group consisting of: a hydrogen storage, a molten salt storage, and a pumped hydro storage. 8. A system to store and to transmit electrical power, comprising: at least one storage system comprising a central storage system,at least one bidirectional converter comprising a first bidirectional converter,at least one load coupled to an AC network and adapted to both, receive electrical power from the AC network and supply electrical power to the AC network, wherein the at least one load comprises a first load,wherein the central storage system is used to store electrical power of a power source,wherein the central storage system is connected to the first bidirectional converter by a HVDC power transmission system,wherein the first bidirectional converter is connected to the AC network,wherein the AC network is connected to the first load,wherein the at least one storage system further comprises a decentral storage system, andwherein the decentral storage system is connected to the AC network through one of that bidirectional converters. 9. The system according to claim 8, wherein the decentral storage system is connected to the HVDC transmission system through one of that bidirectional converters and over that HVDC transmission system to the central storage system. 10. The system according to claim 8, wherein the decentral storage system comprises an electro-chemical, an electrical or a mechanical storage. 11. The system according to claim 1, wherein a controller is connected to the at least one storage system. 12. The system according to claim 1, wherein an energy management system adapted to control energy flows is connected with at least one element from the group consisting of: the at least one storage system, the at least one converter, the at least one load, a switch, and the AC network. 13. The system according to claim 12, wherein the energy management system is adapted to control at least one of: the movement of the at least one load, anda switching operation of the switch for selectively powering a sub-section of the network. 14. The system according to claim 1, wherein the power source comprises at least one power source system which is connected to the HVDC transmission system. 15. The system according to claim 14, wherein the power source system comprises renewable power sources selected from the group consisting of: wind power sources, solar power sources and hydro power sources. 16. The system according to claim 15, wherein the power source system comprises at least one back-up power source is connected to the HVDC transmission system for compensating variations of the renewable power source.
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Kocher,Mark John; Carson,Gerald Benjamin, Alternative energy system control method and apparatus.
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