Method, for positioning power system power oscillation disturbance source in real time, based on SCADA (supervisory control and data acquisition) data
A real-time positioning and power system technology, applied in electrical digital data processing, special data processing applications, electrical components, etc., can solve problems such as insufficient understanding of devices, difficult integration of EMS systems, and inadequate maintenance, to improve the level of practicality, Realize the effect of simple and practical, small transformation workload
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[0034] The following is a preferred embodiment of the present invention, and the features, objects and advantages of the present invention can be seen from the description and drawings of the embodiment.
[0035] 1. This method uses the oscillation feature iteration function, which is explained as follows:
[0036] figure 1 Is the flow chart of the oscillation characteristic iteration function, the characteristic function is a state iteration function, input new data on the basis of the previous state, calculate the characteristic quantity of active power swing back and forth of a certain power grid equipment, and compare with the preset fixed value Returns the state of the device after the comparison.
[0037] Input to the function: (P k ,t k ) ,in P k is the active value of the equipment, t k is the measurement acquisition time.
[0038] Determine whether the current value is an extreme point,
[0039] P k ’ ·P k-1 ’ (1)
[0040] in:
[004...
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