DEVICE FOR AUTOMATIC CONTROL AND EQUALIZATION OF BATTERY UNIT CHARGING RATE IN COMBINED POWER PLANT Russian patent published in 2017 - IPC H01M10/48 

FIELD: electricity.

SUBSTANCE: device contains a power source in the form of working battery unit (1), a system (2) of use conditions and charging battery unit, a matching circuit consisting of a parallelly connected separation condenser (3) and a resistor (4), a group of single-position electromechanical switches, common electric busbars (6) and (7), a two-position electromechanical switch (8), two differently directed parallel diodes (9) connected to one of the back-to-back primary transformer windings (10), in parallel to which smoothing condensers (11) and (12) are connected, a two-position electromechanical switch (13), an operational amplifier (14), and its output is connected to the upper end of the secondary winding of the transformer (10) and to the comparator inputs (16) and (17) via a variable feedback resistor (15), the second inputs of the comparators are connected to a voltage divider (18), outputs of the comparators 16 and 17 are connected to a microcontroller (19), which is connected to an indicator (20) by one busbar and with a demultiplexer (21) by another busbar. The microcontroller (19) is connected to the input of the coincidence circuit (22) and the operational amplifier (23) by the control pulse, and its output is connected via current limiting resistors to a two-position electromechanical switch (26) for switching from the control and indication mode to the equalization mode. The microcontroller (19) is connected to the trigger (24) input of the signal selection of the odd and the even ordinal number of the battery in the unit via the second synchronization output, trigger's output is connected to the input of the operational amplifier (25), amplifier's output is connected to the two-position electromechanical switch (26) via the limiting current resistors, the switch ensures the necessary polarity of the battery backup (28) connection to the two common electric busbars (6) and (7), the backup battery (28) is connected parallel to the leads of the storage condenser (27) via a fixed resistor (29).

EFFECT: increased energy efficiency and reliability of the device, increased speed of charge equalization.

7 cl, 1 dwg