The wind-solar complementary street lamp is a renewable energy-emitting circuit lamp that integrates two energy generation technologies and system intelligent control technologies, such as solar energy and wind energy. The system that needs to be used may also be more than other new energy sources. The basic configuration is solar energy. Boards, wind turbines, controllers, batteries, light poles, and luminaires are all required, but the working principle is not very complicated. This paper first introduces the principle of wind-solar complementary solar street light, and then explains the accessories and advantages of wind-solar complementary solar street light. Finally, it introduces the problems to be paid attention to when choosing wind-solar complementary street lamps and the maintenance of complementary light street lamps.
Wind and solar complementary solar street light principle Wind-solar hybrid power generation system is a device that converts wind energy and light energy into electric energy. The working principle of wind-solar complementary street lamp is to use natural wind as power, wind wheel absorbs wind energy, drives wind turbine to rotate, converts wind energy into electric energy, passes controller The rectification and voltage regulation function converts the alternating current into direct current, charges the battery pack and stores the electric energy. The photovoltaic effect is directly converted into direct current for use by the load or stored in the battery for use.
Scenery complementary solar street light accessories Solar modules, fans, solar high-power LEDs, LPS lamps, photovoltaic control systems, fan control systems, solar-powered maintenance-free batteries and other components, solar module brackets, fan accessories, poles, embedded parts, battery buried boxes, etc. Accessories. The following details:
1, wind turbine
A wind turbine is a facility that converts natural wind into electrical energy. The electrical energy is sent to a storage battery, which cooperates with the solar panel to provide energy for the street lamp. Depending on the power of the light source, the power of the wind turbine used is also different, generally 200W, 300W, 400W, 600W, and the like. The output voltage is also available in several types such as 12V, 24V, and 36V.
2, solar panels
Solar panels are the core of solar streetlights and the most valuable part of solar streetlights. Its role is to convert the solar radiation capacity into electrical energy, or send it to the battery for storage. Among the many solar cells, there are three types of monocrystalline silicon solar cells, polycrystalline silicon solar cells and amorphous silicon solar cells. In the eastern and western regions where sunlight is abundant, it is better to use polycrystalline silicon solar cells because the production process of polycrystalline silicon solar cells is relatively simple and the price is lower than that of single crystal. In the southern regions where there are more rainy days and less sunshine, it is better to use monocrystalline silicon solar cells because the performance parameters of monocrystalline silicon solar cells are relatively stable. Amorphous silicon solar cells are better in the case of insufficient outdoor sunlight, because amorphous silicon solar cells have lower requirements for solar lighting conditions.
3, solar controller
Regardless of the size of the solar luminaire, a good performance charge and discharge controller is essential. In order to extend the life of the battery, its charging and discharging conditions must be limited to prevent overcharging and deep charging of the battery. In places with large temperature differences, qualified controllers should also have temperature compensation. At the same time, the solar controller should have the function of street light control, with light control and time control functions, and should have automatic load control energy at night to facilitate the extension of street lamp working time in rainy days.
4, battery
Since the input energy of the solar photovoltaic system is extremely unstable, it is generally necessary to configure the battery system to work. Generally, there are lead-acid batteries, Ni-Cd batteries, and Ni-H batteries. The choice of battery capacity generally follows the following principles: First, the energy of the daytime solar cell module is stored as much as possible while meeting the nighttime illumination, and at the same time, it is also necessary to store the electric energy required for the nighttime illumination of the continuous rainy day. If the battery capacity is too small, it can not meet the needs of night lighting. The battery is too large. On the one hand, the battery is always in a deficient state, which affects the battery life and causes waste. The battery should match the solar cell and the electrical load (street light). A simple way to determine the relationship between them. The solar cell power must be four times higher than the load power for the system to work properly. The voltage of the solar cell should exceed 20~30% of the working voltage of the battery to ensure that the battery is normally negatively charged. The battery capacity must be more than 6 times the daily load of the load. Battery Selection We recommend the use of a gel battery for long life and environmental friendliness.
5, the light source
What kind of light source is used for solar street lamps is an important indicator for whether solar lamps can be used normally. Generally, solar lamps use low-voltage energy-saving lamps, low-voltage lamps, electrodeless lamps, and LED light sources.
(1) Low-voltage energy-saving lamps: low power, high light efficiency, but the service life is 2000 hours, the low voltage tube is black, generally suitable for solar lawn lights, garden lights.
(2) Low-pressure sodium lamp: low-pressure sodium has high light efficiency (up to 200Lm/w) and is used less.
(3) Induction lamp: low power and high luminous efficiency. The lamp is used under normal commercial conditions of 22V (pure sine wave, frequency 50 Hz), and its life can reach 50,000 hours. The service life of solar lamps is greatly reduced compared with ordinary energy-saving lamps (because solar lamps are square wave countermeters) Transformer, solar power 220V output frequency, term position, voltage can not be compared with ordinary commercial power.
(4) LED: LED light source, long life, up to 1000000 hours, low working voltage, no inverter, high light efficiency, domestic 50Lm/w, imported 80Lm/w, with the advancement of technology, LED performance Will be further improved. LEDs as a source of solar street lights will be a trend.
6, light pole and lamp housing
The height of the pole should be determined according to the width of the road, the spacing of the luminaires, and the illuminance standard of the road. The lamp housing collects a lot of foreign solar light data according to our tungsten. Between the beautiful shell and the energy saving, most of them choose energy saving, and the appearance requirements of the lamps are not high, so it is relatively practical.
Advantages of wind and solar complementary solar street lights 1. Good economic benefits
Since ordinary street lamps must be powered by buried cables, the construction cost of the power supply lines of the street lamps is very high on the roads that are more than three kilometers away from the power supply point. As the kilometers extend, a boosting system is also required. Therefore, in the outer suburbs, The power supply line of the street lamp has a high cost and consumes a lot of power on the line. The scenery complementary street lamp does not need a transmission line, does not consume electric energy, and has obvious economic benefits.
2, can be used as a good teaching material to popularize new energy knowledge
At present, it is very necessary to educate the public about environmental protection and new energy knowledge. The complementary street lamps can directly show the application of clean natural energy such as solar energy and wind energy.
3, beautiful shape, can be used as a road landscape
The windmill is a good luck mascot in Chinese traditional culture. The beautifully shaped windmills are arranged along the road and fly in the wind, which will become the road landscape.
4, energy saving and emission reduction, saving environmental protection, no large amount of electricity expenses in the later period.
A resource-saving and environment-friendly society is becoming the trend of the times. Compared with traditional street lamps, wind-solar complementary street lamps use natural renewable solar energy and wind energy as energy sources, do not consume any non-renewable energy sources, and do not emit polluting gases into the atmosphere, resulting in a reduction in pollution emissions to zero. For a long time, the protection of the environment is self-evident, and it also eliminates the cost of a large amount of electricity expenses in the later period.
5, the cable laying project is exempted, and no need to build a large number of power supply facilities.
The operation procedures of the mains lighting project are complicated, and the foundation works such as cable trench excavation, underground pipe laying, pipe threading and backfilling require a lot of labor. At the same time, large quantities of electrical equipment such as transformers, power distribution cabinets, and power distribution boards also cost a lot of money. Scenery complementary street lights will not, each street lamp is a separate individual, no need to cable, no need for large quantities of electrical equipment, saving manpower and saving money.
6. Individual damage does not affect the overall situation and is not affected by large-scale power outages.
Since the conventional street light is a cable connection, it is likely to affect the entire power supply system due to individual problems. This is not the case with wind and solar hybrids. In the distributed independent power generation system, individual damage will not affect the normal operation of other street lamps. Even if a large-scale power outage is encountered, the lighting will not be affected, and the uncontrollable loss is greatly reduced.
7, save a lot of cable overhead, and more to avoid the loss of cable theft.
Installation of street lamps in remote areas where the power grid is not widely available has high installation costs and serious theft. Once stolen, affecting the entire power output, the loss is huge. There is no concern when using landscape complementary street lights. Each street light is independent and free of cable connections. Even if the theft occurs, it will not affect the normal operation of other street lights and reduce the loss to a low level.
8, intelligent control, eliminating manual operation, simple construction, easy maintenance.
The wind and solar complementary street lights are controlled by intelligent controllers, which can be divided into two automatic control modes: time control and light control, which are both safe and economical. The independent power supply system is not affected by large-area circuit construction, and the process is simple and the construction period is simple. Short, maintenance is more convenient.
9, the city is bright.
As an emerging energy system, it has played a certain role in lighting while saving costs and improving system stability. Today, when traditional energy accounts for most of the market, new energy has undoubtedly become a highlight of cities and communities.
10. Improve people's awareness of energy conservation. The lack of traditional energy sources and the pollution of the environment have reached a point where they must be resolved. The global air pollution is quite serious. The use of new energy can effectively improve people's awareness of energy conservation and make our lives more quality and energy-saving. The wind-solar complementary street lamp is a smart street lamp that uses wind energy and solar energy to supply power. It also has the advantages of both wind power generation and solar power generation, providing a stable power supply for urban street lamps.
The problem to be paid attention to when choosing the scenery complementary street lamp 1, the choice of fan
The fan is the iconic product of the wind and solar complementary street lamp. The most important choice for the fan is the smooth operation of the fan. The pole is a no-position tower, and the minimum heart is loosened due to the vibration of the fan when the lamp cover and the solar bracket are fixed. Another major factor in the selection of a fan is the aesthetic appearance of the fan, the light weight, and the reduced load on the tower.
2, the optimal configuration of the power supply system
Ensure that the lighting time of the street light is an important indicator of the street light. The wind-solar complementary street light serves as an independent power supply system, from the selection of the street light bulb to the fan.
The configuration of the capacity of the solar battery and the energy storage system has an optimal configuration design, and the design of the optimal capacity configuration of the system needs to be combined with the natural resource conditions of the installation of the street lamp location.
3, the strength design of the pole
According to the selected fan and solar cell capacity and installation height requirements, combined with local natural resource conditions, the design of the pole strength should be determined to determine the reasonable pole and structure.
Scenery complementary street lamp maintenance and maintenance First, the maintenance of wind turbine generator
1. Check the wind turbine blades. Focus on the blade for deformation, corrosion, defects or cracks. Blade deformation will result in uneven sweeping area of the blade, and corrosion and defects of the blade may make the weight of several blades inconsistent, which may cause the wind turbine to rotate unevenly or shake when rotating. If the blade has cracks, it is necessary to confirm whether the crack is due to material stress or other reasons, but for whatever reason, if the blade has a crack, it must be replaced.
2. Check the fasteners, fixing screws and wind turbines of the wind-solar complementary solar street lights, and check whether the connecting parts or fixing screws at each joint are loose or rusty. If there is any problem, tighten or update it immediately. Turn the wind turbine blade by hand to check if it is rotating or rotating freely. If the rotation is not working or there is abnormal sound, it is a bad phenomenon.
3. Measure whether the electrical connection between the surface casing of the wind turbine, the pole and the earth is smooth. The electrical connection is smooth, and the safety of the wind turbine system can be effectively protected in the event of a lightning strike.
4. When the wind turbine rotates under the breeze or the street lamp manufacturer manually rotates, measure whether the voltage at the output terminal is normal. The output voltage is about 1V higher than the voltage at both ends of the battery. If the output voltage of the wind turbine is lower than the battery voltage when it is rotating rapidly, the wind turbine output is faulty.
Second, the inspection and maintenance of solar cell components
First check the surface of the solar cell module of the wind-solar complementary solar street lamp for dust or dirt. If present, use a clean water, a soft cloth or a sponge to remove it; for difficult to remove dirt, use a mild, abrasive-free cleaning agent. Secondly, check the surface of the battery pack or the ultra-white glass for cracks and whether the electrode is detached. If this phenomenon is found, use a multimeter to check the open circuit voltage and short-circuit current of the battery pack to see if it is consistent with the specifications of the battery pack. At the same time, if the voltage value input to the controller is measured on the sunny day, and the result of the measurement is consistent with the output of the wind turbine, the output of the battery component is normal, otherwise the abnormality needs to be repaired.
