Fractional-order Adaptive Sliding Mode Approach for Frequency Regulation in Power System

Abstract

The increased penetration of renewable sources in power system makes it more vulnerable to instability due to their intermittent outputs. Most importantly increased deviation in frequency and voltages during transient disturbances effect stability of power system. To ensure stable and reliable power supply, area frequency deviation needs to be maintained at its theoretical value (±0.5Hz). So as to decrease the frequency deviation, a fractional-order adaptive sliding mode control (FO-ASMC) is applied in a hybrid power system. To improve the system response and reduce the impact of chattering, a fractional calculus and adaptive law is incorporated into the design of traditional SMC. The performance of FO-ASMC has been examined under various load perturbations and wind power fluctuations. The findings of FO-ASMC are compared to those of traditional SMC.