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2. 发明公开

EP3879661A1 SAFE AND RESILIENT ENERGY DISTRIBUTION SYSTEM FOR A HIGHLY EFFICIENT MICROGRID 有权
公开(公告)号：EP3879661A1
公开(公告)日：2021-09-15
申请号：EP20162192.7
申请日：2020-03-10
申请人： CE+T Power Luxembourg SA
发明人： RIXHON, Daniel , FAGNY, Stéphane , FINFE, François , BIDAINE, Benoit , BLEUS, Paul
IPC分类号： H02J3/36 , H02J3/00 , H02J3/02 , H02J1/00 , H02J4/00 , H02J9/06 , H04M19/00
摘要： The present invention relates to a microgrid with a high voltage direct current (HVDC) source, a high voltage alternating current (HVAC) source respectively, for efficiently and safely distributing power to decentralized loads, comprising :
- at least a main or central HVDC, respective HVAC, power supply (2) connectable in input to an AC grid (1) and in output to a main DC, respective AC, distribution network and loads system (3), having energy reserve means, and comprising a main fault isolator or main FI (22) ;
- the main DC, respective AC, distribution network and loads system (3) comprising a maintrunk bus (10), and subtrunks buses (9) and/or front end local loads (8) cells connected in parallel to the maintrunk bus (10), and comprising, at each branching of a subtrunk and a load or of a subtrunk of order (N-1) and a subtrunk of order N, a local fault isolator or local FI (24) ;
- a smart main controller comprising microcontrollers (11A, 11B), capable to smartly operate adjacent local FIs (24) in case of fault occurrence in the microgrid, so as to segregate the fault and favour or increase the resilience of the microgrid, said smart operation of the adjacent local FIs (24) comprising assignation of increasing switch opening timings to local FIs (24) in the main DC distribution network and loads system (3), when a distance of said local FIs (24) from an end of line faulty subtrunk location is increasing up to main FI location, so as to sequentially disconnect the faulty subtrunk(s) from the network until a first non-faulty subtrunk is found, while a possible faulty local load has already been isolated in a shorter timing.

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