Power grid multi-fault static safe domain evaluation method based on state superposition method
A static safety domain, multiple fault technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as complex multiple faults that cannot be considered
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[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments and drawings.
[0031] Such as Picture 9 As shown, the present invention provides a multi-fault static security domain assessment method based on the state superposition method, which includes the following steps:
[0032] Step 1: Calculate the transfer ratio λ from a component m1 in the faulty component set [1,M] to a component C∈[M+1,N] outside the faulty component set m1→C : Given the power flow under the calculation method S, the faulty component set [1,M] is out of service on the basis of the S method, which is recorded as the method S N-m , Calculate S N-m Under the current mode, read the current P′ of component C C(N-m) ; On the basis of S mode, m-1 components in the outage failure component set [1,M] except component m1 are recorded as mode S m1 , Calculate S m1 Under the current mode, read the current P′ of component m1 m1 And t...
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