Damping of Frequency and Power System Oscillations with DFIG Wind Turbine and DE Optimization

Wind power is one of the most promising renewable energy resources and could become a solution to contribute present global warming crisis world. The commonly used doubly fed induction generator (DFIG) wind turbines have general trend increasing oscillation damping. Unless properly controlled, high penetration will increase affect control dynamic interaction interconnected generators. This paper discusses damping in automatic generation (AGC) two-area systems with DFIG Matlab code/Simulink interfacing optimization methods. differential evolution (DE) technique obtain controller gain parameters. In process, step load perturbation (SLP) 1% has been considered Area 1 only, integral time weighted absolute error (ITAE) cost function used. Three different test studies examined on same system model non-reheat turbine thermal plants. first case, simulated without controller. Case Study 2, presence 3, PID DFIG. Most available literature do not optimize appropriate penetrating speed parameters for consider ITAE as an objective reduce area error. this regard, main contribution result is—with proposed PID+DFIG optimized DE—the value case study being 6.7865, which reduced 1.6008 PID+DFIG-optimized DE. addition, methods, responses such rise time, settling overshoot, undershoot are improved tie-line power, change frequency, Similarly, controller, fast convergence achieved. Generally, it inferred that incorporation both areas appreciably performance stability under consideration.