Ultra-Short-Term Power Load Forecasting for Shipyards Based on IWOA-KELM
Based on the characteristics of shipyard operation and maintenance management and power loads,a forecasting model is proposed for ultra-short-term power load forecast in shipyards.This model optimizes the kernel extreme learning machine(KELM)using an improved whale optimization algorithm(IWOA).To enhance the optimization performance of the whale optimization algorithm(WOA),heuristic probabilistic search and adaptive weight factors are introduced.The regularization coefficient C and kernel parameter λ of KELM are taken as optimization objects,and the root mean square error(RMSE)combined with the L1 regularization coefficient is used as the objective function,which is optimized by IWOA.Comparative studies on measured data from a shipyard show that IWOA-KELM has good generalization ability,smaller prediction errors,higher prediction accuracy,and good adaptability,meeting the needs of shipyard O&M personnel.