提升多馈入受端电网安全性的储能电站规划方法OA北大核心CSTPCD

The AC/DC interaction in multi-infeed receiving-end system is a significant concern,as it poses the risk of simul-taneous commutation failure.At the same time,the receiving-end system,characterized by low-inertia,may experience rapid frequency decline after HVDC blocking fault and may induce low frequency load shedding accident.Energy storage system enables four-quadrant operation of active active and reactive power,ensuring rapid response that promotes the safe and stable operation of the power grid.Therefore,a bi-level multi-objective planning model of energy storage plants was pro-posed to improve the security of the receiving-end system.For the outer layer,both location and capacity planning for the en-ergy storage plants were carried out with the goal of reducing the interaction between HVDC while considering the economy.The optimal scheduling model was constructed in the inner lay-er by using the emergency power support capability of energy storage system,DC,as well as the pumped storage control,tak-ing the frequency security constraint into account.The non-dominated sorting genetic algorithm Ⅱ(NSGA-Ⅱ)combined with solver was employed to solve the model.Finally,the ef-fectiveness of the proposed programming model was verified by an improved IEEE-39 system.