To set up the additional reserve capacity of fast frequency response is a reserve planning scheme established to prevent frequency security incidents

also an important means to cope with the new situation of power system frequency stability. Firstly

the potential benefits of primary frequency modulation accident interception is taken into consideration

and the risk preference cost-benefit analysis model is used as the risk value evaluation basis for small probability extreme events. Secondly

based on the sequential Monte Carlo method

the operation state models of conventional units

HVDC transmission lines and wind turbines are established. Thirdly

the fault set is input into the proposed system frequency simulation model to track the system frequency and capture the lowest point of decline for power disturbance

so as to obtain the reserve capacity for fast frequency response.Finally

the reliability benefit and reserve comprehensive cost are taken into consideration

and the reserve cost-benefit model with fast frequency response is defined and the corresponding feasibility verification method of reserve scheme is proposed. The example shows that the proposed fast frequency response reserve capacity planning scheme can effectively avoid the homogenization of small probability extreme events.Also

the smaller the probability of extreme events is

the higher the reserve demands are.