Introduction  Under the background of "carbon peak and neutrality," IGCC power generation system with CO₂ pre-combustion capture technology is of great application potential.

  Method  In this paper, the research status of the IGCC power generation system in recent years and the key directions of further research were summarized, the characteristics of existing research and related optimization suggestions were reviewed from three aspects: diversity of fuel, optimization design of system form, and software application of system simulation. Finally, the potential advantages of deep optimization of IGCC power generation system under the background of "carbon peak and neutrality" were emphatically introduced, and then the prospect of IGCC power generation system was discussed, especially the application prospect of multi-energy coupling and energy storage technology.

  Result  The results show that the novel IGCC power generation system combining multi-energy coupling and energy storage technology has great development potential in the future.

  Conclusion  This work provides some guidance for further study on the subsequent theoretical research of IGCC power generation system.