【摘要】 提出快速三相高斯潮流算法。因潮流计算给出的未知条件数目多于方程数,所以对发电机进行研究,增加发电机节点的内电势节点,使方程数目等于未知条件数目。对导纳矩阵中的PQ节点对应部分进行消去,得到只有发电机节点的网络。对此网络进行分析,得到PV节点迭代方法。在潮流计算时,分别形成固定的PQ节点、PV节点对应因子表,通过对PQ部分电流前代,将PV节点的有功功率进行修正,由此有功功率对PV方程进行求解,然后将求得的PV电压代入PQ方程进行回代,得到一次迭代计算的解。计算结果表明该方法具有良好的收敛性,虽然迭代次数较牛顿法有所增加,但是计算时间较牛顿法少。更多还原

【Abstract】 A three-phase Gauss load flow algorithm is presented. Since given unknown conditions are more than equation quantity, generator electric potential nodes are added to make equation quantity equal to unknown conditions by studying generator. A network containing generator nodes only is got by eliminating PQ nodes’ counterpart in admittance matrix. Study this eliminating network and get a method for PV nodes iteration. Stationary factor table of PQ nodes and PV nodes is formed for load flow calculation. Current flow value of PQ nodes is used to amend active power of PV nodes and get the result of PV voltage. And then PQ voltage result can be gained by solving the PQ equations and one time of iterative computation is finished. The result shows that the algorithm has the advantage of good convergence. Although the iteration number is bigger than that of Newton algorithm, however, computation time is less than Newton algorithm because of its static iteration matrix.更多还原