Sensitivity Analysis of the Problem of Contribution of Energy Storage Devices to Providing Inertia for the Primary Frequency Response

Today, with the expansion of low-inertia (such as wind power plants) and non-inertia (such as ‎photovoltaic power plants) technologies, the amount of network inertia and power related to the ‎primary frequency response has decreased significantly. As a result, in the event of ‎disturbances, the frequency changes with a relatively higher slope and it may violate its ‎permissible range. To solve this problem, several methods have been presented so far that ‎create artificial inertia by power electronic converters connected to storage devices or ‎renewable generation. Therefore, the models make the operation of these sources similar to ‎traditional power plants and increase their contribution to the frequency response during ‎storage contribution events. In this paper, the sensitivity analysis of energy storage contribution ‎to providing inertia for the primary frequency response has been carried out. IEEE 3-bus and ‎‎118-bus networks are used as test networks. MATLAB software is also adopted for ‎optimization. The results show the impact of each storage parameter on the frequency response ‎and how it is possible to meet the frequency response limitations of the network by managing ‎the storage devices.‎