Intelligent power supply system with high-voltage photovoltaic charging modules

Abstract

The invention relates to an intelligent power supply system with high-voltage photovoltaic charging modules, and the system comprises a plurality of cell panel square arrays, n high-voltage photovoltaic charging modules (1, 2, 3,...,n), a control module, a load management module, a cell management module, a storage battery, and a remote monitoring module. Direct currents of the cell panel square arrays are inputted into a bus, and are processed by the n high-voltage photovoltaic charging modules in parallel connection, and are outputted from the bus. The processed direct currents are respectively inputted into the load management system and the cell management system. The cell management system is connected with the storage battery, and the load management module is connected with a load. Meanwhile, the control module is connected with and controls the n high-voltage photovoltaic charging modules, the load management system and the battery management system, and transmits information to the remote monitoring module. Through the parallel high-voltage input, the efficiency of the system is improved, and the cable capacity is small. Meanwhile, the modules alternately enter a dormant state, thereby prolonging the service life of all modules. The system also achieves the dynamic charging and discharging management, load dynamic connection and battery overcharging and discharging protection through intelligent monitoring.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to an intelligent power supply system with a high-voltage photovoltaic charging module. Background technique [0002] With the optimization of the global energy structure, solar energy as a clean and renewable new energy is becoming more and more respected, and photovoltaic power generation is even more important. Photovoltaic power generation base stations are generally used as an independent power supply system and are used in remote areas with a long running time. Photovoltaic power generation technology is one of the development trends of new energy in the world. It requires more emphasis on system efficiency, reliability and economy. Monitoring in the traditional sense is generally established under short-distance conditions, that is, close-distance monitoring. This method requires a certain number of maintenance personnel, which consumes a lot of manpower...

AI Technical Summary

Problems solved by technology

At present, the management unit in the system generally only has simple battery protection functions, but does not have complete intelligent management functions, such as maximum power point tracking (MPPT) of solar panels, battery charge and discharge process management, battery overcharge protection, over discharge Protection, over-current protection, battery balance management, fuel gauge, battery voltage monitoring, and communication with external intelligent units, etc., so it cannot be an independent intelligent power system and cannot meet the requirements of the current smart grid development

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