The design research solar energy and wind energy intelligently charge the battery through the controller in the complementary form, and automatically turn on and off various types of LED outdoor lamps according to the intensity of the light in the evening, such as road signs, community street lights, landscape lighting, and the like. The intelligent controller has wireless sensor network communication function, which can realize three remote management (telemetry, remote communication, remote control) with the background computer.
The intelligent controller also has powerful artificial intelligence functions to implement all-round intelligent control of the entire lighting project. The background computer implements advanced computer three-way management for the entire lighting project, with emphasis on the operation inspection of lighting fixtures and fault and burglar alarms.
Both solar energy and wind energy are renewable resources, but there are great differences in energy formation, power generation intensity and power generation cost. The following table is a comparison table of solar panels and wind turbines.
After analyzing the above table, it is not difficult to draw the following conclusion: "Complementary scenery and wind-based" is the best choice for humans to use new energy. We designed and researched the “Wind and Light Complementary Intelligent Semiconductor Outdoor Lighting Projectâ€, and its new energy component adopts “mainly wind energy and solar energy supplementâ€.
The design idea, through field comparison test, for the same power LED street light, under the same illumination index and lighting time, the cost performance of the wind energy complementary power system is far superior to the pure solar power system, mainly in the following: the price has dropped 40%; the ability to adapt to different climate changes is significantly enhanced; the style is novel and unique.
There are many types of lamps used in outdoor lighting projects. Most of the light sources currently used are high-pressure lamps and energy-saving lamps. These lamps have the disadvantages of high power consumption, short life, easy damage, toxic substances such as mercury, and pollution of the power grid. LED has occupied a major position in the field of signal lights, display screens and landscape lighting. In the past two years, it has begun to enter the field of ordinary outdoor lighting at a rapid pace, and has gradually replaced it. According to our research experience on LED lamps, no matter what kind of LED lamps, the following key technologies will be encountered in development: light distribution design; heat dissipation design; constant current control; In dealing with the above technologies, firstly, LED products with good quality and meeting the requirements of lamps should be selected. Secondly, the characteristics of the selected LED products should be fully understood, and the design conditions should be strictly in accordance with their use conditions, especially their junction temperature. In all cases, they must be below their maximum value, otherwise the LED's efficacy and lifetime will be seriously affected.
The controller plays an important role in the whole project. Its level of intelligence and reliability directly reflect the performance and quality of the entire project. We have done a lot of research and development work on the controller, mainly: 1. Introducing wireless sensor network technology into outdoor lighting project, which not only satisfies the lighting industry's implementation of three remote management requirements for lighting equipment, but also solves the problem of lighting equipment theft alarm. This industry has not solved the problem for a long time.
2. Design the controller according to the requirements of the industrial computer. In particular, their average time between failures must be more than 50,000 hours to ensure long-term safe operation of the lighting project.
3. Introduce artificial intelligence technology into the controller, so that it is mandatory in dealing with maximizing power generation, fan stall protection, battery charging and discharging.
The application of new energy sources and new light sources is a new technology that human beings face in the 21st century. It has great significance in energy conservation, consumption reduction and emission reduction. Although there are still problems encountered when new technologies come out, such as high prices, imperfect performance, and unstable quality, they represent the advancement of technology and the direction of the industry, so they have strong vitality and are not satisfactory. The situation will continue to be solved as the technology continues to advance.
The outdoor lighting industry is one of the world's largest consumers of electricity. The introduction of new energy sources and new light sources into the industry is an inevitable choice for all mankind. In the past two years, based on this trend, we have jointly designed and jointly developed the following new energy and new light source outdoor lighting products: they are: wind and solar complementary LED intelligent street lamps, wind and solar complementary LED community road lighting project, landscape complementary LED landscape lighting project, scenery Complementary LED intelligent tunnel lighting project and intelligent LED street light have achieved good social benefits after two years of use.
The outdoor road lighting project mainly includes the following contents: 1. Vehicle road lighting project (fast track / main road / secondary road / branch road); 2. Residential (generalized) road lighting project (community street light / garden light / lawn light / ground) Buried lights / wall lights, etc.).
Roadway lights (for main and secondary trunk roads and fast lanes), height between 6 meters and 16 meters, the national standard is: average illumination 20-25Lx, uniformity 0.35. Currently, the status quo of domestic and foreign road lights It is basically all high-pressure sodium lamps, because its light efficiency is higher (up to 120Lm / W or more), but it also has many shortcomings, mainly because of high power consumption (power factor is only about 0.35), short life (only 1.5) About 10,000 hours), not environmentally friendly (containing toxic gases such as mercury), difficult to dim, and easy to damage (gas source and heat source). With the continuous advancement and wide use of solar and wind energy technologies, wind-solar complementary LED intelligent street lamps will have a great development, especially in places where there are often more than 2 winds, such as cross-sea/river/lake bridge street lights, coastal/江/Lake road street lights, suburban elevated road lights, etc., due to the use of wind-solar complementary LED intelligent street lamp project, there is no need to install electricity, no need to install cables and no need to install power supply equipment, etc., its investment is close to or even lower than the conventional high-pressure sodium lamp project The operation and maintenance cost is much lower than that of conventional street lamps, and the social and environmental benefits are very significant, so it can completely replace the conventional street lamp project to become the first choice. For the occasions with poor wind resources, intelligent LED street lamps can be used because it has energy saving (more than 50%), long life (50,000 hours), environmental protection (no toxic substances such as mercury), easy dimming (resistive load) ), not easy to damage (solid-state light source), no significant pollution to the power grid. This year, 100Lm/w LED has been introduced in China, and it is estimated that it will reach 130-150Lm/w in two years. The price will also drop at a rate of 20%~30% per year. The cost of intelligent LED street light fixtures is currently higher than conventional high-pressure sodium lamps, but the overall cost of the entire streetlight project is lower than that of conventional streetlight projects because its cable cross-section is small and the capacity of streetlight-powered equipment is small.
The current situation of residential road lighting project is: energy-saving lamps are mainly used, and the power supply situation is mainly 220V mains, but the solar street lights are developing rapidly (the state encourages development). The existing problem: the power consumption of residential road lighting also accounts for a large proportion. The existing solar garden lights and solar lawn lights all adopt the 1 lamp 1 solar power solution, which has the disadvantages of high cost, poor reliability and easy damage.
The residential road lighting project adopts distributed green energy semiconductor lighting technology with good natural conditions. After the residential high-rise roof is equipped with wind and solar hybrid power generation equipment, the nearby residential street lights, garden lights and lawn lights are powered by it. Due to the abundant wind resources, The power generation situation is ideal, so their engineering cost is similar to that of conventional residential street lighting projects.
In addition, the technical standards for residential road lighting are relatively low, and the technical threshold for semiconductor lighting products to enter is also low. There are also countries that are vigorously promoting “energy-saving building technologyâ€, and architectural lighting is one of the main contents in energy-efficient buildings.
After the implementation of the project, it is of great significance to promote the scientific and technological progress of the street lamp industry: to solve the key application technologies of high-power LED tubes in outdoor lighting projects (mainly secondary light distribution design, heat dissipation, constant current control, etc.); Key application technologies in outdoor lighting projects (mainly maximizing power, intelligent charging and discharging, battery anti-theft technology, intelligent control of street lights, anti-harsh environment design, etc.); solving the application problems of wireless sensor network technology in outdoor lighting projects.
After the implementation of this project, it has great economic, social and environmental benefits: through the outdoor lighting project examples, the new society (showing wind energy and solar energy), the 21st century new light source, wireless sensor network technology and intelligent energy-saving technology are vividly displayed to the whole society. The significance is to promote the development of China's energy conservation and environmental protection cause and promote the construction of a resource-saving and environment-friendly society.
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