A load grading grid-connected off-grid optical storage micro-grid capacity configuration method and system

Abstract

The application provides a load grading grid-connected non-grid-connected optical storage micro-grid capacity configuration method, system, electronic equipment and storage medium, first, a comprehensive evaluation index system including load power failure economic loss, influence on personal and equipment safety, influence on park core function, and interruptible time tolerance is constructed, and analytic hierarchy process or fuzzy comprehensive evaluation method is used to calculate load importance score and divide into three levels; then, three operation modes are defined in combination with investment and reliability demand; subsequently, photovoltaic installation capacity, battery rated capacity and battery rated power are taken as decision variables, total system life cycle cost minimization and maximum net income maximization are taken as objective functions, and differential constraints are set for the three modes; finally, genetic algorithm or particle swarm optimization algorithm is used to solve the model under each mode, and corresponding optical storage capacity configuration scheme, total investment, power supply reliability and other indexes are output, multiple schemes are adapted to different budgets and demands, and are suitable for various park scenes.

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