\[a=P_rated/((v_N^3-v_cin^3))(17)\]\[b=(v_cin^3)/((v_N^3-v_cin^3))(18)\]Since DG distribution networks are active networks, the performance and control of the network is very interesting. Although there are a number of issues with the distribution network's performance, there are also major technical implications due to the influence of renewable DGs, such as network power loss, voltage stability, and network security discussed here.
Distribution networks are usually radially structured to reduce the complexity of protection. Assessing and reducing network power losses is essential to increase system efficiency. The average power loss per year can be calculated as follows:
Voltage stability indicators are used to assess the level of voltage stability of buses in the transmission or distribution network. These are very fast and effective tools for calculating the offline stability of voltages buses. The voltage stability index VSF (Voltage Stability Factor) for each bus -i + 1 in the time interval t can be expressed as follows.