COMBINED GLAZE ICE MELTING SYSTEM AND LOAD CURVE SMOOTHING USING ENERGY ACCUMULATORS BASED ON STORAGE BATTERIES AND HIGH-POWER SUPERCAPACITORS CONTAINED IN AUTONOMOUS POWER PLANT ASSEMBLY Russian patent published in 2020 - IPC H02G7/16 H02J3/28 

FIELD: electric power engineering.

SUBSTANCE: plant comprises a three-phase bridge converter on fully controlled semiconductor gates, shunted by mutually connected diodes, first three-pole switch and series-connected three-phase throttle, in parallel to first three-pole circuit breaker connected alternating current generator with series-connected second three-pole switch for load supply, n units of storage batteries and/or high-power supercapacitors (hereinafter - units) have the possibility of parallel and serial connection to a group of accumulators, first double-pole switch by contacts connects a group of accumulators with emitter and commutator outputs of converter valves, parallel connection of units to group of accumulators is carried out using n double-pole switches, serial connection of units to group of accumulators is carried out using n single-pole switches, one output of group of accumulators is connected by means of first contact of third three-pole switch with wire of overhead line, second output of group of accumulators is connected by means of second contact of three-pole switch with first output of converter, third contact of three-pole switch closes ground with second output of converter. In the first case, the units used to smooth load graphs are closed by the first switch open in the second case and closed by the remaining n double-pole circuit breakers forming a group of accumulators consisting of parallel connected units, open in the second case. In the second case, which is intended for glaze ice melting, group of accumulators is closed by the third three-pole switch, open in the first case, and closed by n single-pole switches, which form series connection of blocks, open in the first case, one output of the group of accumulators is connected "plus" to the wire of the overhead line, and the second output of the group of accumulators "minus" with the first output of the converter, where the second output of the converter is connected to ground, at that melting ice with direct current is carried out according to the circuit "wire - ground".

EFFECT: possibility of melting glaze ice over long distances by means of high-power energy accumulators contained in gas piston units in autonomous power supply systems on overhead lines with voltage 0_4 kV, 6–10 kV, that is without purchase of additional equipment.

1 cl, 1 dwg