Multi-direct-current frequency limiter based on rated capacity adjustment
A rated capacity, multi-DC technology, applied in the power transmission AC network, reducing/preventing power oscillation, etc., can solve the problems of deteriorating system frequency stability, inconsistent modulation, inconsistent logic and parameters, etc., to maintain stability and change trends. , the effect of precise modulation
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[0016] like figure 1 and figure 2 As shown, a multi-DC frequency limiter based on rated capacity adjustment, which includes a frequency measurement module, a distribution module, and a communication module, the output of the frequency measurement module is connected to the input of the distribution module, and the output of the distribution module is connected to the The input end of the communication module is bidirectionally connected, wherein the distribution module is provided with an adjustment module according to the rated capacity, and the adjustment module according to the rated capacity distributes the total amount of DC modulation calculated by the distribution module according to the DC rated capacity and outputs it to the communication module.
[0017] The frequency measurement module measures the system frequency and transmits it to the distribution module; when the system frequency is within the dead zone range (such as 50±0.05Hz), the distribution module output...
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