Ahmed, Nayeemuddin (University of Rostock), Weber, Harald (University of Rostock)

Overcurrent Limitation in Hydrogen Storage Power Plants (HSPP)

Scheduled for presentation during the Regular Session "Green Hydrogen production, new challenges" (ThuS1T5), Thursday, July 11, 2024, 10:20−10:40, Session room 5

12th IFAC Symposium on Control of Power & Energy Systems, July 10-12, 2024, Rabat, Morocco

This information is tentative and subject to change. Compiled on January 2, 2025

Abstract

The importance of electrical energy storage (EES) systems has been increasingly recognized for enabling the large-scale integration of intermittent renewable energy sources (RES) into the power grid. Among these systems, the Hydrogen Storage Power Plant (HSPP) stands out as a solution capable of independently managing the supply and storage of electrical energy based on network requirements. Previous investigations have shown that the HSPP operating in grid forming mode (GFM) can provide the required ancillary services in the form of instantaneous, primary and secondary control reserves similar to conventional fossil-fired power plants. However, unlike these traditional synchronous generators, the HSPP consists of power semiconductor devices, resulting in much lower overcurrent tolerance. This paper addresses this challenge by proposing a simple yet robust control technique that regulates the maximum current across the HSPP grid interfacing inverter functioning in GFM. The results demonstrate that the controller can maintain the maximum current magnitude below a threshold of 1.2 pu while ensuring the required reactive current contribution during a three-phase fault.