A solar energy generating system with the sun-facing and tracing functions

Abstract

The disclosed solar electrical generating system comprises: a solar energy battery plate; a storage battery pack; a controller for solar charging; and a sun-track device including a rotation unit fixing the solar battery plate, a drive unit, a gear unit to connect last two units, and a control unit including two photoelectric sensors and two comparators and two drive units and two executive units. This invention can automatic track the maximal sun illumination intensity, makes full use of solar energy, reduces cost and investment, and fit to spread.

Description

technical field [0001] The invention relates to a solar power generation system, more specifically to a solar power generation system capable of automatic sun tracking function, and belongs to the technical field of power generation equipment. Background technique [0002] With the development of society and economy, the demand for energy is increasing day by day, and the supply of conventional energy such as coal, oil, and natural gas is increasingly in short supply. Therefore, the development of new energy is an inevitable trend in today's world. As a new energy source, solar energy will not be exhausted in the foreseeable time, and has no atmospheric and radioactive pollution, and has received widespread attention at home and abroad. At present, solar energy utilization technologies mainly include the conversion of solar energy into thermal energy, mechanical energy, electrical energy, chemical energy and other technologies, among which solar-thermal energy conversion has...

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Problems solved by technology

At present, solar energy utilization technologies mainly include the conversion of solar energy into thermal energy, mechanical energy, electrical energy, chemical energy and other technologies, among which solar-thermal energy conversion has the longest history and is the most widely developed, and its application in solar water heaters has also been widely used in people's lives. However, the solar power generation system utilizing solar energy-electric energy has only been applied in some industrial fields, the military field or the aerospace field, and has not been popularized and promoted. The main problem is that the one-time investment of the solar power generation system is relatively large. Among them, the price of solar panels occupies a large proportion in the entire system, so how to reduce the price of solar panels in the entire system has become the key to reducing the cost price of solar power generation systems

[0003] In the existing technology, the solar power generation system basically belongs to the flat-plate fixed silicon photovoltaic power generation equipment. Although it can be conveniently placed on the roof and the wall, it has a problem: due to the continuous rotation of the earth, the sun rises in the middle of the day. The west sets and the location changes constantly, so for the flat-plate fixed silicon photovoltaic power generation equipment, in fact, there is only a short time of direct sunlight on the solar panel every day

Scientific research shows that this method affects the photoelectric conversion efficiency of solar cells, making the effective daily power generation efficiency only 4-6%, wasting 30-50% of sunlight in vain, and in order to ensure the power generation of solar panels requires Increasing the area of ​​solar panels increases the cost of solar power generation systems. This method of sacrificing cost to ensure power generation is obviously not acceptable to consumers

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