| 摘要 |
<p>In a method, computer program and apparatus for estimating parameters of an electric power network the steps of: repeatedly measuring, at a plurality of network locations, synchronous values of electrical network variables; identifying, during network operation, currently valid parameters of a mathematical model of the power network; are executed, wherein the measured variables are frequency, power absorbed by each of a plurality of observed loads, and a total active power loss; and the parameters identified comprise currently valid load parameters, representing a dependency of a load on frequency and voltage. <??>This allows estimating load characteristics on-line during network operation. It therefore is possible to account for an inherent variation of the load characteristics with respect to voltage and frequency variations. This improves the precision of the estimate and the reliability of further actions and calculations based on the estimated state. <IMAGE></p> |
