Adaptive Fractional-Order PID Control for VSC-HVDC Systems via Cooperative Beetle Antennae Search with Offshore Wind Integration

Since the voltage source converter based high direct current (VSC-HVDC) systems owns features of nonlinearity, strong coupling and multivariable, classical proportional integral (PI) control is hard to obtain content effect. Hence, a new perturbation observer fractional-order PID (PoFoPID) strategy designed in this paper for with offshore wind integration, which can efficiently boost robustness performance entire system. Particularly, it employs (FoPID) framework sake compensating estimate, dramatically dynamical responds closed-loop system, cooperative beetle antennae search (CBAS) algorithm adopted quickly its best parameters. Besides, CBAS able escape local optimum because suitable trade-off between global exploration exploitation be realized. At last, comprehensive case studies are carried out, namely, active reactive power tracking, 5-cycle line-line-line-ground (LLLG) fault, farm integration. Simulation results validate superiorities effectiveness PoFoPID comparison that feedback linearization sliding-mode (FLSMC), respectively.