Frequency and Voltage Stability of Distribution Network using Photovoltaic Stabilization System and Battery Storage System

In a power system, various factors such as changes in generator output power due to load changes and different types of short circuits may change the network frequency/voltage as a consequence of changes in network condition. These volatilities in frequency/voltage may cause system frequency/voltage instability. Among different devices used for power system stability, stabilizers are the most important equipment for network stabilization and generator synchronization. In this paper, a photovoltaic system accompanied by battery storage system is used to improve the power system stability following voltage/frequency sudden variations as a result of unpredicted events in the distribution network. To do that, an IEEE 14-bus standard test network is simulated in MATLAB/Simulink, and the performance of the proposed system after different common disturbances is investigated. The results verify the performance of the proposed stabilizer so that it maintains the system stability successfully with zero percent deviation from the original state of the network.