Hardware Co-simulation of Voltage Sensorless Current Control Based on Internal Model Principle

Designing intelligent control structures sensitive to any possible failure of measuring sensors is an engineering challenge to increase the reliability of the power generation systems and keep the converters in their operation range. This paper presents a new control method based on internal model principle (IMC), in sensorless scheme, to improve the dynamic response of the voltage source converters in a vulnerable condition caused by the absence or failure of voltage sensing tools. The simple yet efficient method used in this methodology is quite straightforward in comparison to more intricate control architectures and prompts more fault tolerance and robustness to the system. The proposed control structure has been implemented in hardware-in-the-loop (HiL) framework and the real-time co-simulation has been utilized to validate the functionality of the architecture.