Grid stability judging method based on grid PMU big data
A discrimination method and stability technology, applied in the direction of electrical components, circuit devices, etc., to achieve the effects of high robustness, safety and reliability, and a wide range of applications
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[0027] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings.
[0028] Such as figure 1 As shown, a power grid stability judgment method based on power grid PMU big data includes the following steps:
[0029] 1) According to the power grid PMU data, the random matrix is used for modeling, and the power grid stability analysis is transformed into a random matrix analysis problem, including the following sub-steps:
[0030] 1.1) According to the operating status of the grid, the grid is divided into four types, namely: the topology of the grid remains unchanged, the topology of the grid changes, the power supply of the grid remains unchanged, and the power supply of the grid increases or decreases;
[0031] 1.2) Observe and record the PMU data of nodes at all levels of the power grid in four operating states;
[0032] 1.3) Starting from the grid power flow equation, establish the relationship between the obse...
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