Power grid branch parameter evaluation method based on load flow calculation error analysis

The invention discloses a power grid branch parameter evaluation method based on load flow calculation error analysis. The method comprises the steps of: performing load flow error analysis on a plurality of groups of data sections before and after actual loop closing operation, taking load flow calculation errors as assessment indexes, and grading the accuracy of branch parameters; and when the error analysis times are enough, obtaining the reliability of the branch parameters by using an accumulation effect, and providing a reference basis for branch parameter maintenance, so that the accuracy of load flow calculation is improved. The implementation method is simple and practical, and the result is accurate and credible. 本发明公开了一种基于潮流计算误差分析的电网支路参数评价方法，步骤方法包括对若干组实际合环操作前后的数据断面进行潮流误差分析，以潮流计算误差作为考核指标，对支路参数的准确性进行评分，当误差分析次数足够多时，利用累积效应得到支路参数的可信度，为支路参数维护提供参考依据，从而提高潮流计算的准确性。本发明实现方法简单实用，结果准确可信。