HYDROELECTRIC TURBINES CONTROL METHOD AND SYSTEM Russian patent published in 2017 - IPC H02P9/02 H02P9/48 H02K7/18 H02M5/458 

FIELD: power industry.

SUBSTANCE: control system contains a converter system to convert the AC power, supplied by the generator, connected to the turbine and having the voltage and frequency, that depend on the turbine rotation speed into the AC power, having the transmission system voltage and frequency to transmit the AC power to the receiving station. The system additionally contains a control module to adjust the alternating current, supplied by the generator, depending on the water flow rate through the turbine, thus to control the rotation of the turbine. The converter system contains the first stage converter and the second stage converter, wherein the DC link is located between these converters. The first stage converter is configured to convert the AC power, supplied by the generator into the direct current power. The second stage converter is configured to convert the DC power into the AC power to transmit to the receiving substation, wherein the second stage converter is the voltage inverter type converter.

EFFECT: creation of the system for converting the electrical power, produced by the turbine into the form, compatible with the power transmission system to transmit the electric power to the shore with optimisation of the individual turbine output and the turbine groups as a whole.

20 cl, 13 dwg