POWER SUPPLY CONTROL DEVICE FOR RESIDENTIAL HOUSES, COMMERCIAL AND INDUSTRIAL FACILITIES USING NETWORK, AUXILIARY AND RENEWABLE SOURCES OF ELECTRIC ENERGY AND THEIR COMBINATIONS AND METHOD OF INTELLIGENT CONTROL OF CONNECTION OF ELECTRIC POWER SOURCES Russian patent published in 2019 - IPC H02J3/38 

FIELD: power engineering.

SUBSTANCE: use: in electric power engineering. Device includes inside the single housing modules for conversion of electric power received from external sources of generation: converters of DC voltage (DC/DC converters 103, 203, 105, 205); AC to DC converters (AC/DC converters 103, 203, 106, 206); reversible AC/DC converters – one in case of single-phase design and three in case of three-phase design (108, 208); switching relay (S₁-Sn); alternating current phases synchronization modules; power transformers; accumulator batteries (102, 202); battery charge control system (104, 204); microprocessor control module (101, 201); protective automatic devices and electric safety devices. Components of device are connected to each other by means of DC bus and AC bus. Device has the following outputs: for connection of: one or more circuits of DC photoelectric elements, one or more three-phase AC generators, such as wind generators, connecting an external single-phase or three-phase generator with its own control system, such as an ICE-based modulator, one or more inputs from an external power supplier network; direct current output for connection of power load resistance (107, 207), AC output for connection of main consumers of electric power of object. Device may or may not have direct current output for connection of DC loads of consumer with DC/DC voltage converter (209). Device is controlled by means of a program incorporated with control unit (101, 201), to which sensors of electric power, current and voltage are connected by cables (VA1, VA2, VA3, VA4, VA5, VA6, VA7, VA8…VAn) and switching relay (S1, S2, S3, S4, S5, S6, S7, S8, S9…Sn). Besides, AC/DC and DC/DC converters are connected to control unit (101, 201) via data bus (103, 203, 105, 205, 106, 206, 108, 208) and accumulator charge control system (104, 204). Control method is based on execution of cyclic program implemented by control unit (101, 201), using flexible system of automatic correction of initial parameters of program by algorithm in fig. 4. Program determines availability of electric power at device inputs as per readings of current and voltage sensors (VA1, VA2, VA3, VA4, VA5, VA6, VA7, VA8…VAn) and connects relays (S1, S2, S3, S4, S5, S6, S7, S8, S9…Sn) inputs from the external network, generation sources and accumulator batteries in the device. Program takes into account the time of day, historical data on power demand, forecast data on planned production of electric power by own sources of generation. Program ensures uninterrupted power supply to consumers at minimum possible cost of energy at each moment in time.

EFFECT: enabling connection of generation devices on AC side, as well as possibility of flexible change of priorities of connection of various inputs from generation sources and accumulator batteries.

16 cl, 4 dwg