Quality Solar LED Flood Light

The development of green and low-carbon industries is a common action to deal with global common problems and promote sustainable development The unsustainability of the traditional energy and resource utilization system has brought huge environmental pressure to the world, and global problems such as resource shortage and climate change are becoming more and more urgent. Promoting green and low-carbon development has become the consensus of all countries in the world to deal with resource and environmental problems and promote sustainable development. action. Major economies such as Europe and the United States regard promoting green and low-carbon development as the strategic content of their future national economic development, actively carry out major deployments in green and low-carbon fields such as new energy, new energy vehicles, energy conservation and environmental protection, and cultivate and develop green and low-carbon technologies and industries. my country has actively participated in international actions to deal with global climate change and energy governance, vigorously promoted energy conservation and emission reduction, developed new energy and new energy vehicles, and promoted the development of a green, low-carbon and circular economy, and achieved remarkable results. Establishing the concept of green and low-carbon development and promoting the development of green and low-carbon industries is not only an urgent need for my country to accelerate the transformation of its economic development mode and strategically adjust its economic structure, but also a strategic action for my country to actively respond to common problems in global development and jointly promote sustainable development. At present, the world economic recovery lacks momentum, the impact of the international financial crisis still exists, and the global economic development is undergoing profound adjustments. Both developed and developing countries are expanding new development space and looking for new growth drivers. At the same time, environmental problems such as climate change, environmental pollution, and ecological degradation have become prominent and have become serious challenges that threaten the economic security, energy security, and even national security of various countries. Accelerate the cultivation and development of emerging industries such as new energy, new energy vehicles, energy conservation and environmental protection with high technology content, low resource consumption and wide driving effect, promote green and low-carbon circular development, and become a new economic growth point for countries around the world to accelerate economic transformation, upgrading and upgrading As a strategic choice for international competitiveness, green and low-carbon industries have also developed into the key areas of the international new economic game.

Solar energy is inexhaustible, clean, pollution-free and renewable green energy. The use of solar power generation has unparalleled cleanliness, high safety, relative extensiveness and adequacy of energy, long life and maintenance-free advantages that other conventional energy does not have. Photovoltaic energy is considered to be the 21st century The most important new energy. The solar street light does not need to lay cables, AC power supply, and no electricity bills; it adopts DC power supply and control; it has the advantages of good stability, long life, high luminous efficiency, easy installation and maintenance, high safety performance, energy saving and environmental protection, economical and practical. It can be widely used in urban main and secondary arterial roads, communities, factories, tourist attractions, parking lots and other places.Solar street lights are powered by crystalline silicon solar cells, maintenance-free valve-controlled sealed batteries (gel batteries) store electrical energy, ultra-bright LED lamps are used as light sources, and are controlled by intelligent charge and discharge controllers to replace traditional public power lighting Street lights.Explanation of the working principle of solar street lights: solar street lights during the day are under the control of the intelligent controller, the solar panels absorb solar light and convert it into electrical energy under the control of the intelligent controller. The solar cell modules charge the battery pack during the day and the battery pack provides power to the LED at night The light source is powered to realize the lighting function. The DC controller can ensure that the battery pack is not damaged due to overcharging or over discharging. It also has functions such as light control, time control, temperature compensation, lightning protection, and reverse polarity protection.

From Solar Hybrid Storage system, how to dissipate heat is the most important issue. According to the BCC report, a famous survey in the world, 55% of the failures of most electronic products are due to poor heat dissipation. The reliability of electronic devices is very sensitive to temperature. For every 1 degree increase in device temperature at the level of 70-80 degrees, the reliability will drop by 5%. If the temperature is too high, the reliability of electronic products will be reduced. At present, there are three main cooling methods: one is natural cooling, the other is forced air cooling, and the third is forced liquid cooling. In the optical storage system, components, cables, switch boxes, small power inverters, small battery boxes, etc. generally use natural heat dissipation, medium and high power inverters, medium and small power energy storage devices, and the cooling system generally adopts forced air cooling. For large lithium battery energy storage containers, some manufacturers have begun to use forced liquid cooling. Except for common system-level heat dissipation design, the optical storage system also has some technical parameters of the equipment. The surface seems to have nothing to do with the temperature, but it is actually determined by the temperature.1. The Current carrying capacity of the wireThe current carrying capacity of the wire is the maximum current that the wire can carry. For example, a cable of 6 square millimeters can pass a current of 70A. The current carrying capacity on the surface is only related to the material, cross-sectional area and installation environment of the wire. The current carrying capacity is determined by the temperature. If the temperature is low enough, the superconductor cable of 6 square millimeters can also pass the current of 700A, or even 7000A.2. Power generation and temperature of componentsThe power generation of photovoltaic modules is related to illumination. Generally speaking, the higher the irradiance, the higher the output power. The summer from July to August is the irradiance time in most parts of my country, but from the comprehensive statistical data Look, the month with the highest power generation is not July-August when the irradiance is the highest, but May or October.Photovoltaic modules are semiconductor materials with internal resistance, which will consume a part of electric energy. Like copper-aluminum cable materials, the internal resistance of photovoltaic modules also increases with the increase of temperature. In summer, infrared rays are strong, and infrared heat will increase the temperature of photovoltaic modules. Reduce power generation. Therefore, although summer has the advantage of strong light and increased light time, it will also have a negative impact on the power generation of the power station, such as high temperature in summer, high air humidity, relatively frequent severe weather such as heavy rainfall and thunderstorms, and these factors will affect the photovoltaic power station. of power generation.Tips: High Temperature when installingThe components and the inverter itself are a heat source, all the heat must be dissipated in time and cannot be placed in a closed space, otherwise the temperature will rise higher and higher, the inverter should be placed in a space with air circulation, and try to Avoid direct sunlight. When multiple inverters are installed together, in order to avoid mutual influence, there should be enough distance between the inverters.Maintain ventilation and heat dissipation, whether it is components or inverters, the distribution box must be ventilated to ensure air circulation. For the components of the rooftop photovoltaic power station, do not unreasonably arrange the arrangement of the photovoltaic power station components in order to generate more power, causing the components to block each other and affecting the heat dissipation and ventilation. It is necessary to ensure that the surrounding areas of photovoltaic modules, inverters, and power distribution boxes are open.

1. The power of solar panels involves two variables: silicon wafer size and silicon wafer conversion rate, so as long as the sum of silicon wafer conversion rate and silicon wafer area are known, the approximate power of solar panels can be calculated. The formula is: The area of the solar silicon wafer (square millimeter) * conversion rate /1000, for example, a solar panel with a length and width of 156mm, the conversion rate is 18.5%, then its power is: 156*156*0.185/1000= 4.50216W, pay attention to the calculation of the area of the silicon wafer white edge should removed. 2. Calculation method of solar panel voltsThe voltage of a single string is 0.5V. A plate is connected by multiple battery pieces in series, and the voltage is added. For example, a 10W 12V solar panel is connected by 24 battery pieces in series, and 24*0.5V=12V 3. The solar panel glass is toughened glass, super white cloth is good pervious to light, the effect of super white cloth fabric is there are many grooves on the glass, refracted through the grooves on the fabric point occurs has reached to the most appropriate use of sunlight, glass fabric if you don't do processing efficiency will be reduced by 30%, if not super white glass is not blue, power generation efficiency will decrease 10%.4. In China, solar silicon wafers are generally divided into European and American wafers, Taiwan wafers, domestic wafers and Vietnam wafers, which are divided into ABC three grades. Generally, the requirements of photovoltaic station wafers are A or A-wafers.In 2003, only 10-11% of the conversion rate, the current domestic silicon wafer conversion rate of 18%-20% (polysilicon), 20-22% (monocrystalline silicon). The more impurities, the blacker the silicon.