考虑风-火功率协调的风电机组主动频率响应策略OA

Active frequency response control strategy serves as an important technical means to enhance the primary frequency regulation capability of wind turbines.However,existing studies predominantly focus on the design of response mechanisms for wind turbines while ignoring the impact of multi-energy coordinated output on frequency response characteristics.To address this issue,this paper proposes an active frequency response strategy considering the wind-thermal power coordination.Firstly,considering the frequency regulation contribution of wind power and governor dynamics,an improved system frequency response model is established.Based on this model,the time-domain analytical solution for system frequency response under power disturbances is derived.Secondly,by following the design principles of wind-thermal power coordination and peak-valley complementarity of frequency response components,a power trajectory model for the frequency support phase of wind turbines is constructed.Furthermore,comprehensively considering the effects of wind speed and wind power penetration rate,an adaptive power trajectory design in the frequency support withdrawal phase is developed using a Logistic function.Finally,the simulation validates the feasibility and effectiveness of the proposed strategy in improving the frequency dynamic characteristics.