Multi-machine coordinate control method of wind farm subsynchronous oscillation suppressor
A sub-synchronous oscillation and synchronous oscillation technology, applied in the direction of reducing/preventing power oscillation, electrical components, circuit devices, etc., can solve the problem of affecting the stability of wind power generation systems, wind turbine off-grid, oscillation and wind farm power generation, wind speed does not appear There are obvious regularity and other problems, to achieve the effect of easy project scale expansion, reduce actions, and solve the problem of subsynchronous oscillation
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[0037] The present invention will be described below with reference to the drawings and examples.
[0038] The present invention proposes a multi-machine coordinated control method for a subsynchronous oscillation suppressor, which connects a comprehensive monitoring device and subsynchronous oscillation suppressors distributed in various wind farms in the area through a wireless network (3G network or an existing wireless network on the project site), And can remotely access the integrated monitoring device through the Internet, such as figure 1 Shown is the structure diagram of the multi-machine coordinated control system.
[0039] The suppressor installed in each wind farm is used to collect the voltage and current signals of the monitoring point, and the required data is obtained through the AD data acquisition and correction link and the signal filtering link of the suppressor, and then the current flowing into the grid is measured by the subsynchronous oscillation frequency id...
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