Method for controlling power supply system featuring complementation of solar energy and fuel energy

Abstract

The invention relates to a method for controlling power supply system featuring complementation of solar energy and fuel energy. In the method, a controller collects input electric current of a solar energy power supply device, charge-discharge electric current of storage batteries and load current of a loading equipment; when the input electric current is less than 1.5 times of load current, thesystem enters an oil engine auxiliary power supply mode; in the oil engine auxiliary power supply mode, the controller reads the current status of the storage batteries and the current status of the oil engine power supply device and starts up or closes the oil engine power supply device according to certain logic; in the technical proposal of the invention, solar energy power supply mode serves as the main power supply mode, as a result, the solar energy can be fully utilized, requirements for environmental protection are met, the input electric current of a solar panel and the load current of the load device can be monitored in real time; in addition, the oil engine can be started up to supply power when the solar energy power supply device can not supply enough power, thus entering theoil engine auxiliary power supply mode and realizing continuous power supply, improving utilization efficiency of the oil engine and lengthening service life of the storage batteries, strengthening reliability of the power supply system while meeting the requirements on energy conservation and reduction of consumption.

Description

technical field [0001] The invention relates to a varnish complementary power supply system, and more specifically, to a control method for the varnish complementary power supply system. Background technique [0002] At present, remote mountainous areas without mains power, small islands in oceans and lakes, etc. need to provide power to meet the needs of life or military. The use of solar energy provides convenience for power supply in these areas, but the main problem is that solar energy is more affected by weather changes. Large, rainy days, nights can not be used. Therefore, a device that combines solar energy and other systems to provide power has emerged as the times require. [0003] At present, the function of the existing power supply device combining solar energy and diesel engine is not perfect. Some of them are simply switched manually when the battery is almost exhausted to charge the battery. This method is supervised by a special person, which is not smart e...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the utilization efficiency of the varnish power supply device in the prior art is low, the battery life is short, the reliability of the power supply system is poor, and at the same time, the solar energy is not fully utilized, and sufficient energy saving and reduction Consumption and other defects, provide a control method for light oil complementary power supply system

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