Solar energy is a renewable clean energy source. It is inexhaustible and it is an inevitable trend of future energy utilization. With the widespread application of clean energy solar energy and the gradual maturity of energy storage technology, the advantages of solar street lamps in road lighting and village lighting gradually emerge, and the replacement of city circuit lights through cables has become a trend. This article first introduced the solar Street Lamp components, followed by the working principle and advantages of solar street lighting, and finally introduced the application of solar street lighting and application principles.
Solar Street Light components 1, solar photovoltaic components
Components are generally divided into two parts: single crystal and polycrystalline. Of course, single crystal polycrystalline is also divided into A surface and B surface, so this is the reason why the same configuration of the market above the price of the components will be so poor, from the appearance of ordinary people are not What's coming out? The function of the module is to convert solar energy into electricity that can be stored in a battery. The current single crystal conversion rate is up to 17%, and polycrystalline is around 12%.
2、Solar battery
As a function of storage and release of electrical energy, the battery can be installed on the pole or buried in the ground. The function of the battery box is as a protection function of the battery in the underground, the battery will not be corroded by the groundwater, and the battery works on the principle of solar energy during the day. The converted electrical energy of the PV modules is stored in the body. At night, the controller commands the discharge of time. The product quality of manufacturers with different technical capabilities is very different from the corresponding price.
3, solar controller
The main skeleton of the street lamp system, the big heart, the image of the analogy, the human heart is good, no problem people can properly normal operation, if the heart has a problem or failure other body parts will no longer be useful. The controller's direct impact is the life of the solar street light system. It is best to use a certain brand, such as Nanjing Putian, Shenzhen Shuo Riguang and so on.
4, led light source
Now the market is generally better with a flat lamp, the light source is optional, mainly in these two parts, the traditional change to the Led Lamp holder shell, heat dissipation performance is a bit poor, the flat lamp head is flat, looks high-grade, The built-in cooling of the lamp holder, the reasons for the domestic and imported lighting sources, and the domestic technology are generally based on imports. Imports are better, Puri and Corey. Puri also has 33 points and 45 points. The choice of materials led light source prices are also different
5, solar street Light Pole
The pole part is customized according to the requirements of the pole type and configuration parameters at the beginning of the customer's design. Size, style requirements are different, the price difference.
How solar street lights work The working principle of solar street lamps is to convert solar energy into electricity to achieve lighting. At the top of the street lamp is a Solar Panel, also known as a photovoltaic module. During the day, these photovoltaic modules made of polysilicon convert solar energy into electrical energy and store it in the battery, so that the solar street lamp is under intelligent control. Under the control of the device, the solar panel is irradiated with sunlight, absorbs solar energy and is converted into electrical energy, and the solar cell module charges the battery pack during the day. In the evening, power is supplied to the light source through the control of the controller to illuminate people at night. At night, the battery pack provides power to the LED light source to achieve lighting functions.
Solar street lights generate electricity through solar energy, so there is no cable, no leakage and other unexpected situations. The DC controller can ensure that the battery pack is not damaged due to overcharge or overdischarge. At the same time, it has the functions of light control, time control, temperature compensation, lightning protection and reverse polarity protection. No cabling, no AC power supply, no electricity bills.
The low carbon environmental protection, safety, and reliability of solar street lights have been recognized by the majority of customers and have been greatly promoted. Therefore, it can be widely used in urban areas, secondary roads, communities, factories, tourist attractions, parking lots and other places.
The advantages of solar street light 1, wide energy
Solar street lamps use solar photovoltaic cells to provide electricity. Solar energy, as a green and new energy source, is "inexhaustible and inexhaustible." Making full use of solar energy resources is of positive significance to ease the tension of conventional energy sources.
2, easy to install
The installation of solar street lights is simple and convenient. There is no need for a large number of basic projects such as the laying of cables, as with ordinary street lights. Only one base is required to be fixed, and all the lines and control sections are placed in the lighthouse to form a whole.
3, low maintenance costs
The solar energy used by solar street lamps, except for the small part of the cost of electricity generated when converted into electricity for rainy days, is almost zero. The entire system is operated automatically, without human intervention, and almost no maintenance costs.
The advantages of solar street lamps compared to ordinary street lamps 1, installation contrast
When installing, it is not necessary to provide complex lines, only a concrete base and a battery pit within 1m. It can be fixed with galvanized bolts.
There are complex operating procedures in the city's circuit lamp construction. First of all, auxiliary cables, trenching, pipe threading, backfilling, and other large-scale civil construction will consume a lot of manpower, material resources, and financial resources. Finally, debugging is also required. Once a problem arises, it will result in great consumption.
2, cost comparison
Solar street lamps will benefit from long-term investment. Because the circuit is simple, no maintenance costs will be incurred and no expensive electricity will be generated. 6-7 years to recover costs, after 3-4 years save more than 100 million in electricity costs and maintenance costs.
The city's circuit lights are expensive and complicated, requiring long-term and uninterrupted maintenance. In the case of a particular voltage instability, the sodium lamp is easy to be damaged, and with the extension of the age, the line aging and maintenance costs are increasing year by year.
3, safety comparison
The solar street light adopts 12-24V low voltage, stable voltage, reliable operation and no hidden safety hazards. It is an ideal product for ecological communities and road administration departments.
The city’s circuit lamps have a large number of potential safety hazards. People’s living conditions are constantly changing, and road renovation, construction of landscape projects, abnormal power supply, cross construction of water gas pipelines and many other hidden dangers.
4, environmental protection comparison
Solar street lights can add new selling points for the development and promotion of noble ecological communities; sustainable reduction of property management costs and reduction of owners' public apportioned part of the cost. In summary, the intrinsic characteristics of solar lighting, such as safety, no hidden dangers, energy-saving and non-consumption, environmental protection, easy installation, and automatic maintenance and maintenance, will directly bring obvious advantages to the sale of real estate and the construction of municipal projects.
5, life comparison
The lifespan of solar lamps is much longer than that of ordinary electric lamps, such as the main components of solar lamps ---- the service life of solar modules is 25 years; the average life span of low-pressure sodium lamps is 18,000 hours; the average of low-voltage efficient three-primary energy-saving lamps Life of 6,000 hours; super bright LED's average life is greater than 50,000 hours; solar battery life is 38AH below 2-5 years; 38-150AH 3-7 years. According to the regulations of the regular residential area, the initial investment for ordinary lighting is higher than the initial investment for solar lighting lamps. In short, the comprehensive comparison of the characteristics of solar lighting to save investment is quite obvious.
Solar street light application field 1) The highways in the border areas such as villages and townships receive lighting.
2) City square, parking lot, school playground, worker green space, park lighting.
3) Lighting on golf courses, bathing beaches, upscale villa areas, etc.
4) Highway warning signs, bridge street lamp power supply replacement, etc.
Solar street lighting application principle 1, the principle of practicality
The main purpose of the application of solar street lighting in urban lighting systems is to save energy, but because it is affected by the weather, the solar street light may not be able to fully meet the lighting requirements for areas that are cloudy and have high power requirements. Based on this, in the application design, it is necessary to combine the design effects of the original street lighting system, increase the solar power supply, realize the complementarity between the commercial power supply and the solar power supply, and ensure that the power supply can be switched to the mains power supply in time when the solar power supply is insufficient, and the entire The application efficiency of the lighting system.
2, the principle of high efficiency
In the application design, it is necessary to improve the application efficiency through reasonable design on the basis of meeting the functional requirements of the lighting system, and to reduce the system energy consumption while reducing pollution. To achieve the purpose of energy saving and environmental protection. In addition, the application of solar street lighting design. In order to ensure that it has a relatively high application efficiency after it is put into use, it is also necessary to analyze the local geographic factors and meteorological factors of the project, and conduct detailed investigation and analysis on the actual conditions of sunshine hours, fog hoop weather, and rainy weather. The actual situation to adjust the design program at any time, strive to meet the needs of the lighting system to the greatest extent.
3, the principle of traffic safety
The main purpose of the construction of the urban road lighting system is to ensure traffic safety, and on this basis, improve the efficiency of transportation and provide a safe and comfortable environment for traffic operations. Therefore, in the construction and application of solar street lamps, we must follow the principle of traffic safety. In combination with the actual needs of local road traffic, carry out reasonable design. Ensure that all aspects of the design meet the requirements for use.
