A device for improving low voltage ride through and its control method
A low-voltage ride-through and control method technology, which is applied in the field of wind power generation, can solve the problems that the low-voltage ride-through capability does not meet the standard requirements, and achieve the effects of avoiding shocks, protecting and maintaining
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[0037] The low voltage ride through improvement device and control method thereof of the present invention are described in detail below with reference to the drawings and embodiments.
[0038] Such as figure 1 As shown, the low voltage ride through device 101 disclosed in the present invention includes a controller 102, an incoming circuit breaker 103, an outgoing circuit breaker 104, a fast switch 105, a bypass switch 106, an isolation circuit 107, and a The energy absorbing circuit 108 and a synchronization promoting circuit 109. The controller 102 is respectively connected with the incoming line breaker 103, the outgoing circuit breaker 104, the quick switch 105, the bypass switch 106, the energy absorbing circuit 108 and the synchronization promoting circuit 109, and the incoming line The circuit breaker 103, the isolation circuit 107 and the outlet circuit breaker 104 are connected in series between the wind turbine and the power grid. The fast switch 105 is connected in par...
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