A load-isolated electrical-electrical integrated power system

Abstract

The invention belongs to the technical field of power, and relates to a load isolation type battery-battery integration power system. One end of a fuel battery controller is electrically connected with a power system central control unit, and the other end of the fuel battery controller is electrically connected with a fuel battery; a first adjustment switch and a second adjustment switch are connected in series to be connected with a third adjustment switch and a fourth adjustment switch which are connected in series in parallel to form an adjustment switch set; a main DC / DC is respectively and electrically connected with the fuel battery, a main DC / DC controller and the adjustment switch set; the adjustment switch set is respectively and electrically connected with a first energy storage battery set, a second energy storage battery set and an electric energy output control device, the first energy storage battery set is connected with a first battery set management system, the second energy storage battery set is connected with a second battery set management system, and the first energy storage battery set and the second energy storage battery set are respectively and electrically connected with the power system central control unit. The load isolation type battery-battery integration power system is simple in structure, convenient to operate, safe in use, high in energy recovering and using efficiency, good in reactivity and stability and environmentally friendly.

Description

Technical field: [0001] The invention belongs to the field of power technology, and relates to an electric-electric drive power system, in particular to a load-isolated electric-electric integrated power system, which isolates the energy output of the fuel cell from the power demand of the load, and uses the total energy demanded by the load The required capacity of the fuel cell and its best steady-state working condition are determined without matching the maximum power demand. Background technique: [0002] With the deepening of people's understanding of energy crisis and environmental protection issues, fuel cells have attracted widespread attention because of their advantages such as high efficiency, modularization, high reliability, diversity of fuel sources and environmental friendliness. The world's major automobile manufacturers are unanimously optimistic about the application prospects of fuel cells in the automobile industry, among which PEMFC (proton exchange mem...

AI Technical Summary

Problems solved by technology

In the hybrid power system, the fuel cell is used as the main power source, and the lithium-ion battery pack is used as the auxiliary power source. This type of power system prolongs the service life of the fuel cell to a certain extent through its complex intelligent hybrid power management system, but because it does not Isolating the energy output of the fuel cell from the power demand of the load, the contradiction between the reactivity and stability of the fuel cell has not been completely resolved

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