DIRECT CURRENT (DC) INTERCONNECTION SYSTEM FOR MEDIUM VOLTAGE ALTERNATING CURRENT (MVAC) DISTRIBUTION NETWORK

摘要

Systems, methods, techniques, and apparatuses of a medium voltage alternating current (MVAC) network are disclosed. One exemplary embodiment is a direct current (DC) interconnection system (160) for an MVAC distribution network (100) including an AC/AC power converter (170) including a first AC terminal (177) and a second AC terminal (179); a plurality of switching devices (163) structured to selectively couple a first AC terminal (177) to a plurality of feeder line points (122,127,132) in the MVAC network (100); and a control system (161) structured to receive a set of measurements, calculate a headroom value for each feeder line point using the set of measurements, select a first feeder line point using the calculated headroom values, operate the plurality of switching devices (163) so as to couple the first AC terminal (177) to the first feeder line point, and operate the AC/AC power converter (170) so as to transmit MVAC power from the first AC terminal (177) to the first feeder line point.