| 摘要 |
A method of performing loadflow calculations for controlling voltages and power flow in a power network by reading on-line data of given/specified/scheduled/set network variables/parameters and using control means, so that no component of the power network is overloaded as well as there is no over/under voltage at any nodes in the network following a small or large disturbances. The invented generalized Patel Super Decoupled Loadflow (PSDL) calculation method is characterized in that 1) modified real power mismatch at any PQ-node-p is calculated as RP p =[.DELTA.P p' +(G pp'/ B pp') .DELTA.Q p'] / V p2, which takes different form for different manifestation of the generalized version PSDL-X'X' method, 2) transformed values of known/given/specified/scheduled/set quantities in the diagonal elements of the gain matrices [Y6] of the P-.theta. sub-problem and [YV] of the Q-V sub-problem are present, and 3) transformation angles are restricted to maximum in the range of -48° to -90° particularly for the most successful version PSDL-YY method, and these inventive loadflow calculation steps together yield some processing acceleration and consequent efficiency gains, and are each individually inventive. The other two Patel Super Decoupled Loadflow methods: BGX' version (PSDL-BGX') and X'G pvX' version (PSDL-X'G pvX') are characterized in the use of simultaneous (1V, 1.theta.) iteration scheme thereby calculating mismatches only once in each iteration and consequent efficiency gain.
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