The invention relates to the technical field of
new energy and
electric vehicle charging facilities, and particularly discloses an
optical storage and charging direct-flexible power supply
system applied to a service area, which comprises a
photovoltaic power generation unit, an
energy storage unit, a charging unit and a bidirectional AC /
DC converter interacting with a
power grid, and the
energy management unit carries out unified coordination control. The core of the
system is that the loss of multiple times of
electric energy conversion is reduced by using a flexible
direct current bus, and a multi-mode flexible control strategy including
peak load shifting, photovoltaic priority, power support and off-grid emergency is executed through an
energy management unit. Therefore, the comprehensive benefits of improving the overall energy efficiency of the
system, reducing the operation cost, stabilizing
power grid impact and guaranteeing off-grid continuous power supply are achieved. Meanwhile, the system adopts a container type integrated
energy storage design and supports networking operation of a plurality of service area subsystems, so that high integration, intelligent operation and maintenance and regional energy mutual aid are realized; the technical problem that a traditional service area power supply system is low in efficiency and poor in reliability is solved.