| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an evaluation method for power distribution system that permits users to evaluate the effects, when performing system change-over with distributed power sources that are interconnected to distribution lines on the interconnection side. <P>SOLUTION: First, in step S1, a phase difference at loop point is calculated through simulation with an induction generator 5S that is interconnected to a distribution line at interconnection side C. In step S2, the calculated phase difference at loop point is determined, whether it has positive value or negative value. If the phase difference at loop point calculated in the step S2 has a positive value, it is evaluated in the step S3 that system change-over is possible, in the case that an induction generator 5R is interconnected to a distribution line A at interconnection side in the distribution system 10R of actual line. If the phase difference at loop point calculated in the step S2 has a negative value, it is evaluated in the step S4 that system change-over is inappropriate in the case that the induction generator 5R is interconnected to the distribution line A at interconnection side in the distribution system 10R of actual line. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
