【摘要】 从导纳参数模型下的基本故障型边界条件方程入手 ,采用相补偿法引进了等价虚拟故障口 ,解决了任意过渡阻抗故障计算的边界条件统一性问题。在此基础上推导出基于组合故障模型的短路口电流通用计算公式。该算法是考虑基于对所有短路故障基础之上 ,相较于一般的短路计算模型 ,算法具有严格意义上的通用性。较好地实现了任意不对称过渡阻抗的基本型短路或组合型短路的统一求解 ,具有较大的现实意义。更多还原

【Abstract】 On the basis of boundary condition for a fundamental fault which is de scribed in admittance parameter, the problem about universal boundary equation c oncerned during fault calculation with different transition impedance is solved by adopting phase compensation and introducing virtual fault ports. In this pape r, a general formula based on combined fault to calculate port-current in short circuit is presented. This method takes all special probabilities for short circ uit into account; Comparing with the orthodox calculation model for short circui t, it is strictly generalized,the algorithm satisfactorily achieves general solu tion for a fundamental fault or a combined fault with different unsymmetrical tr ansition impedance, so it takes on outstanding significance in reality.更多还原