【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,从而解决了任意过渡阻抗故障计算的边界条件统一性问题。在此基础之上推导出基于组合故障模型的短路口电流通用计算公式。该算法较一般的短路计算模型,算法具有通用性,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。更多还原

【Abstract】 On the basis of boundary condition for a fundamental fault which is described in admittance parameter, the problem about universal boundary equation concerned during fault calculation with different transition impedance is solved by adopting phase compensation and introducing virtual fault ports. In this paper,a general formual based on combined fault to calculate port-current in short circuit is presented. Comparing with the orthodox calculation model for short circuit, it is generalized. In a word,the algorithm satisfactorily achieves general solution for a fundamental fault or a combined fault with different unsymmetrical transition impedance.更多还原