Improved matrix pencil algorithm based stationing method for additional damping controller of multi-infeed direct current system
A multi-infeed DC and additional damping technology, which is applied in the directions of instruments, calculations, power transmission AC networks, etc., can solve the problems of not considering the interaction of controllers, noise sensitivity, etc.
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[0038] Such as figure 1 As shown, the test system described in the mark I is composed of five regional power grids in areas A, B, C, D, and E, and the five regional power grids described in the mark II are connected by 7 direct currents and the two AC sections described in the mark III; Among them, No. 1 and No. 2 are directly connected to regional power grid A and regional power grid D, No. 3 is directly connected to regional power grid A and regional power grid E, and No. 4 to No. 7 are directly connected to regional power grid C and regional power grid D. There is AC section 1 between area A and area B, and AC section 2 exists between area B and area C.
[0039] 1. Control sensitive point mining
[0040] According to the calculation results of the small perturbation program, it can be known that the dominant oscillation mode is 0.35 Hz, and the participation factor of unit 1 in this mode is relatively large. therefore, Taken as the power angle change of Unit 1, Take N...
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