Research on High-Precision Control of Power Grid Dispatch Based on Fuzzy Membership Degree
[Purposes]The conventional high-precision control method for power grid scheduling mainly uses the MPC(Model Predictive Control)stochastic prediction model to adjust the energy output distribu-tion state,which is easily affected by internal energy changes in HESS,resulting in poor scheduling per-formance.Therefore,a high-precision control method for power grid scheduling based on fuzzy member-ship degree is proposed.[Methods]Based on the operating cost of the power grid and the difference be-tween peak and valley loads,this paper designs relevant objectives,and builds a high-precision control model for power grid scheduling by combining power grid scheduling losses and fuzzy membership de-gree.Under the support of the control model,this paper determines the power load status output schedul-ing time series,and combines it with the objective function to achieve high-precision control of power grid scheduling.[Findings]The designed high-precision control method for fuzzy membership degree in power grid scheduling has a scheduling load value between 112.35 kW and 128.14 kW,a scheduling voltage deviation rate between 0.159％and 0.175％,and a scheduling penalty cost of less than 17 000 yuan and the scheduling response accuracy is more than 95％.[Conclusions]The high-precision control method designed for power grid dispatch has a good control effect and high economic value,making a certain contribution to achieving high-quality and low loss power grid dispatch.
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