Investigation steady state of DG systems according to power network of Iran

In the paper, the impact of distributed generation (DG) on voltage stability and static load ability limit of the sample power grid in Iran has been studied. Therefore, by varying the amount and location of distributed generations in bus 34 standard test networks of Iran different generation models were made. Then, simulation by FORTRAN programming language was written on these models and the results of these simulations were analyzed. To determine the distributed generations’ location for improvement the static load ability limit and voltage stability on the test network of 34 buses standard of Iran, The venin equivalent reactance was calculated and the weak buses of network was determined. As a result, it was shown that insert distributed generations on this buses in improving the static load ability limit voltage stability have a significant impact. Also, to see the increase in the load ability limit and voltage stability improvement, the different pattern was created. Then, the load ability and voltage stability was investigated.

34-Bus power network Distributed generation units The static load ability limit Voltage stability Voltage profile