In this paper, calculate probabilistic load flow considering
various random factors in power with complementarities of
wind power and photovoltaic power, and analyze the impact of
correlation among nodes and random fault line on load flow
and then analyze the impact of the stochastic on it and the
complementary nature between them combined with
probability model of wind power and photovoltaic power
generation. Finally, it analyzes the impact of correlation
among lines on load flow. Taken an example of IEEE30 to
calculate and analyses probabilistic load flow of the system
and get conclusions as follow:
1) Taken into account of correlation among nodes in the
calculation, probability of threshold-crossing for node voltage
increases.
2) Compared and analyzed the example it can be seen that
complementarities of wind power and photovoltaic power can
reduce the impact of randomness of wind power on node
voltage.
3) From the simulation results it shows that correlation
among lines has a great influence on t node voltage and load
flow. So the correlation among lines caused by transfer of
power should be given adequate attention.