As the global focus shifts towards environmental protection and sustainable development, clean energy, particularly hydrogen, is gaining prominence for its high energy density and zero pollution characteristics. Green hydrogen, produced through water electrolysis using renewable energy sources, is considered environmentally friendly. Researchers are exploring various technologies like PEM electrolysis for efficient hydrogen production. Studies focus on optimizing performance, reducing energy costs, and improving the dynamic response performance of the systems. Cost forecasting indicates that advancements in large-scale PEM electrolyzes can significantly reduce production costs, making hydrogen more commercially feasible. With the potential to couple with renewable energy sources, PEM electrolyzes offer a sustainable solution for hydrogen production, contributing to the future energy transition.