| 摘要 |
PURPOSE:To obtain an accurate voltage solution by making a reactive power loss and an electrostatic capacitance to ground as an injected reactive power portion. CONSTITUTION:A loss value of the reactive power Qij is obtained by the calculation for approximate value from the value of an effective power Pij which is obtained by a deltaP D.C. method used in a tidal current calculation on the power system, then the loss portion of the reactive power Qij is obtained by means of subtracting the electrostatic capacitance from the loss value of the reactive power Qij. Next, after this loss portion is added to the injected reactive power portion on a node (i) and node (j) respectively, the voltage value is obtained by a VQ D.C. method to simulate the voltage V and the reactive power Q with the D.C. circuit. Next, the calculation using this voltage value to obtain new loss portion of the reactive power Qij for which the accuracy of the approximate calculation is improved and the calculation to obtain new voltage value by the VQ D.C. method adding the loss portion of new reactive power Qij to the injected reactive power Qij portion on the node i are repeatedly performed specific times. The accurate voltage solution is thus obtained. |
