1 results about "Factor method" patented technology

The invention discloses a distribution factor-based rapid load flow calculation algorithm applied to cascading failure and belongs to the technical field of power systems and automation. The method mainly comprises two tasks of judging whether the rapid load flow calculation algorithm can be adopted and rapidly calculating the line load flow after the cascading failure, wherein the former step is realized by judging a quantitative index according to an error of the second-order sensitivity design, and in the latter step, rapid estimation is performed through a distribution factor method. According to the method, by adoption of the distribution factor load flow estimation mode, the conventional load flow calculation times in the cascading failure analysis can be greatly reduced, so that the calculation efficiency is greatly improved; and meanwhile, the condition of great estimation error is indicated by utilizing the error judgment quantitative index, and the alternating current load flow calculation is restarted to guarantee the calculation precision. According to the method, the calculation amount is reduced to the greatest degree under the condition that the calculation precision is guaranteed, the practical engineering requirements are met, and the method has high universality.