3.7 Impact assessment of the proposed HPS on the existing distribution network
In order to assess the impact of integrating the proposed HPS on the existing distribution network, DigSILENT simulation software version 15.2 is used. The software is used to model and simulate the integration of the proposed HPS on the existing network. A frequency limit of 50 0.05 and nominal voltages of 33 kV and 11 kV 6% is used. The single line diagram of the distribution network is shown in Figure 3.12. It consists of one (30 MVA), 30/11 kV power transformer, and three (250 kVA), 11/0.415 distribution transformers. Details of the network load and equipment are produced in appendix N. Modeling and simulation of the existing distribution network along with a comprehensive stability analysis with and without renewable energy integration are done. These are subsequently discussed in the following sub-sections. …show more content…
3.7.2 Modeling and simulation of the existing distribution network with renewable energy sources
The existing distribution network is modeled and simulated with integration of renewable energy sources with consideration of the active power (MW), reactive power (Mvar) and voltage (p.u.). DigSILENT model connection of the hybrid system at bus 5 in line 1 is as shown in Figure 3.13.

Figure 3.12: Single line distribution network of the study