Voltage Oriented Control Approach in Smart Microgrids with Large Scale Energy Storage Integration

Microgrids refer to small-scale power systems formed from distributed generations, storage devices, and loads, operating synchronised with integrated power electronic units. Since the power supply and the microgrid load are unstable, including energy storage may allow power balance while assuring the microgrid's suitable predictability. Energy storage can deal with the microgrid's unpredictability. Simultaneously, the grid can control the energy storage and the distributed generations with the power dispatching so that the microgrid can alleviate the grid pressure. The system includes interfacing power converters allowing controllable power flow from sources to the loads. This paper considers microgrids, including wind turbines, large-scale energy storage and DC load. The aim is to model a voltage-oriented control scheme for a three-phase PWM rectifier interfacing the wind turbine, the DC load, and the energy storage. The modelling and simulation are performed using the Simulink environment. Microgrids, composed of distributed generation, energy storage, and loads, offer enhanced resilience and energy management. However, the intermittent of renewable sources like wind requires effective control strategies to maintain stability. Large-scale energy storage can mitigate these fluctuations, ensuring a balanced and predictable power supply. This paper presents a Voltage-Oriented Control (VOC) approach for integrating wind turbines, large-scale energy storage, and a DC load within a microgrid. The proposed control scheme uses a three-phase PWM rectifier to interface these components, optimizing power flow and maintaining stable voltage. The VOC approach ensures efficient energy management, regulating voltage levels while balancing power between the renewable generation, storage, and load. M odeling and simulation are performed in Simulink, demonstrating the system’s ability to stabilize voltage and efficiently dispatch energy. The results show that the VOC strategy enhances microgrid performance, improves power quality, and alleviates pressure on the main grid. This approach provides a reliable and predictable energy supply, improving microgrid stability and supporting grid interaction. Keywords: Energy storage, Control System, PWM rectifier, renewable microgrid, wind turbine.