Sliding Mode-based Model Predictive Control of Grid-Forming Power Converters | IEEE Conference Publication | IEEE Xplore

Sliding Mode-based Model Predictive Control of Grid-Forming Power Converters


Abstract:

Grid-forming (GFM) converters are becoming an inevitable component of AC power systems due to the growing demand for distributed energy resources. However, enhancing thei...Show More

Abstract:

Grid-forming (GFM) converters are becoming an inevitable component of AC power systems due to the growing demand for distributed energy resources. However, enhancing their performance is still a critical challenge. Conventional dual-loop proportional-integral (PI) control structures are usually used to control a GFM inverter in a dq reference frame. However, they experience unbalancing in transient and steady-state performance. This paper proposes a sliding-mode control (SMC) based finite control set model predictive control (FCSMPC) for voltage control of a GFM inverter in a grid-connected mode. The SMC is presented for the adaptive and optimal determination of the weighting factors in FCS-MPC. The proposed strategy’s key benefit is the SMC’s real-time execution. By doing this, the weighting factors are constantly updated in real-time, which avoids the dependence of the response of the inverter control system under uncertainties and external disturbances. Furthermore, to accurately track power references and deliver the required virtual inertia, a virtual synchronous generator controller is utilized to implement the active power loop. The suggested approach has been shown to be effective based on the simulation results when compared to a dual-loop PI control method.
Date of Conference: 13-16 June 2023
Date Added to IEEE Xplore: 17 July 2023
ISBN Information:
Conference Location: Bucharest, Romania
Citations are not available for this document.

I. Introduction

Grid-forming (GFM) inverters can regulate the grid voltage and frequency more effectively than synchronous machines when operating as voltage-controlled sources due to their fast response and enhanced controllability [1]–[3]. Many advanced control techniques and topologies for GFM inverters have been suggested in recent years. The voltage regulation of a GFM inverter is typically executed using a dual-loop structure formed of linear controllers [4]–[6]. Even though they are simple to understand and simple to use, they operate poorly when the output frequency varies and exhibit unbalancing in transient and steady-state performance. In applications such as hierarchically organized microgrids, a dual-loop structure requires the outer voltage loop to have a significantly lower bandwidth than the inner current loops. As a result, there is a natural limitation on bandwidth that can negatively impact the efficiency of higher regulation layers [7], [8].

Cites in Papers - |

Cites in Papers - IEEE (4)

Select All
1.
Wongsathan R., "Solar PV-Integrated EV CCCV Charger with MPPT-FLC-ACO and Hybrid FLC-PI Controllers for Three-Phase G2V Applications", 2025 7th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE), pp.1-6, 2025.
2.
Shengwei Chen, Yong Yang, Rong Chen, Jiefeng Hu, Huiqing Wen, Yiwang Wang, Weimin Wu, Gang Fang, Jose Rodriguez, "Tolerant Sequential Model Predictive Control Based on Lexicographic Optimization Method for T-Type Three-Phase Three-Level Inverters", IEEE Transactions on Power Electronics, vol.40, no.2, pp.3020-3032, 2025.
3.
Qianxi Tang, Li Peng, "A Slack Bus Grid-forming Inverter Based on Symmetric Sliding Mode Control Against Power Sharing Imbalances Among Microgenerators", IECON 2024 - 50th Annual Conference of the IEEE Industrial Electronics Society, pp.1-6, 2024.
4.
Saeed Sanati, Innocent Kamwa, Bo Cao, Bo Sheng, Xu Minghui, "A Comprehensive Review on Differential Protection Schemes in IBR-Dominated Microgrids", IEEE Access, vol.12, pp.170250-170272, 2024.

Cites in Papers - Other Publishers (1)

1.
Paul Moore, Oyeniyi Akeem Alimi, Ahmed Abu-Siada, "A Review of System Strength and Inertia in Renewable-Energy-Dominated Grids: Challenges, Sustainability, and Solutions", Challenges, vol.16, no.1, pp.12, 2025.

Contact IEEE to Subscribe

References

References is not available for this document.