Designing a Robust SMC for Voltage and Power Control in Islanded Micro-grid and Simultaneous use of Load Shedding Method

Document Type : Research paper

Authors

Department of Electrical Engineering, Yasuj Branch, Islamic Azad University, Yasuj, Iran

Abstract

Nowadays micro-grids (MG) as one of the most important methods used for electric power generation from renewable energy to reduce dependence on fossil fuels and reducing environmental pollution have been considered. Due to the increasing number of distributed generation (DG) sources and MGs in the power grids, it is of particular importance to design and implement a suitable controller in order to use all the available capacities in these systems. The uncertainty in prediction of power generation can be considered as disturbances into the electrical system, making it difficult to control, and eventually resulting in an unstable system. With the use of power electronic converters the power and voltage of MG can be controlled. In this paper, a 13-bus MG is proposed. This MG includes 3 wind farms and 2 PV farms. A robust sliding mode controller (SMC) is used to control voltage source converters of PV farms. A load shedding program is proposed to avoid complete blackout of MG in case of islanding that recover MG voltage to normal range after a voltage collapse. Simulations were performed using MATLAB/SIMULINK software on a 13-bus IEEE micro grid, and the effectiveness of the proposed control and operational method was investigated and confirmed.

Keywords

References

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Journal of Operation and Automation in Power Engineering

Articles in Press, Corrected Proof
Available Online from 20 August 2023

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History

  • Receive Date: 29 January 2023
  • Revise Date: 29 May 2023
  • Accept Date: 16 July 2023

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