Distributed optimal scheduling method for supply side of charging and storage power station

• Main Authors: WEI ZHAOBIN, WANG RUI, ZHAO ZIKAI, WANG YEQIAO, CHENG SHAN
• Format: Patent
• Language: Chinese; English
• Published: 17.07.2020
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERATION; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TRANSPORTING; VEHICLES IN GENERAL

A distributed optimal scheduling method for a supply side of a charging and storage power station comprises the following steps: firstly, according to a travel chain and a Markov decision theory, establishing an electric vehicle space-time transfer model considering travel path randomness and unit mileage energy consumption of the electric vehicle space-time transfer model under different temperatures and traffic road conditions; secondly, considering electric vehicle charging and discharging constraints and charging and storage power station and power distribution network operation constraints, and taking charging and storage power station income maximization as a charging and storage power station supply side optimization mathematical model of an objective function; and then, based on animproved Lagrange dual relaxation method, providing a distributed optimization solving method of the model. According to the method, the power supply pressure of the charging and storage power station can still be relieved e