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The design elements of the two systems (1) fully utilize renewable energy sources such as wind and solar energy to ensure uninterrupted power supply throughout the year.
(2) Applicable environmental working conditions: temperature -15~45C, relative humidity of 95%; rain and coastal salt mist; wind speed of 330m/S; instantaneous maximum wind speed of 40m/S; total solar radiation of 150kca/cm2; annual sunshine of 3000h. (3) Stability guarantee: stable operation, safe and reliable, and can be used 24/7 under unmanned conditions.
(4) No electromagnetic interference: Wind turbines and their charging controllers will not have harmful electromagnetic effects on the surrounding environment.
(5) Product quality assurance: The design, manufacturing, and product quality of wind turbines shall comply with relevant national and industry standards, and the product quality assurance system shall comply with the target regulations.
Certification specifications, design quality certification and type testing of 1EC1215 crystalline silicon ground photovoltaic modules, national standard GB/T1400792 General specification for terrestrial solar modules, GB/T14009 Measurement methods for solar cell module parameters 6. (7) The battery pack complies with the provisions of national standard GB13337.191 for fixed lead-acid batteries and has been tested by a testing institution that has obtained GB/T15481 certification qualification.
The total power of the system P=60W/85%=71W, which is the efficiency of the inverter and power supply line.
The rated power of the wind turbine is P, the rated power of the solar cell module board is P2, and the capacity of the battery pack is C. According to the natural resource conditions of the installation location of the street light, the maximum continuous time for the wind turbine and solar cell module to not generate electricity simultaneously is 3 days; The maximum continuous time that solar cell modules cannot generate electricity is 12 days; The maximum continuous time that a wind turbine cannot generate electricity is 6d The determination of 3 battery packs is 24 hours per day; Based on the actual specifications of the battery and minimizing the number of batteries, C=340Ah is taken, and the actual configuration is 12 x 1 sets of C=2V/340Ah batteries.
The determination of the power of a 4-level wind turbine in weather where solar cells cannot generate electricity, usually on continuous rainy and cloudy days, where the wind speed and duration greatly exceed the annual average wind speed and time. Based on meteorological data and the natural environment of the site, a 4-level wind turbine is selected during this period. The MPSQW is based on the specifications of the wind turbine and the reliability of its actual installation and use. The actual configuration is: 1 WV-02-350W wind turbine.
The EV-02 series wind turbines have a mechanical automatic clutch system, which breaks free from the constraints of high wind power requirements for traditional wind turbines. This allows the wind turbine to be started under very small wind conditions. When the wind blades reach a certain speed and inertia, the clutch system automatically starts to drive the generator to generate electricity, greatly improving the power generation efficiency of the wind turbine and doubling its working time. The EV-02 series wind turbines are equipped with an autonomous yaw system, which can actively face the wind in the right direction when the wind is not strong, in order to obtain the maximum windward area and improve the efficiency of wind turbines.
The determination of the power of 5 solar cells is usually based on continuous sunny days when wind turbines cannot generate electricity, and the daily sunshine hours are significantly higher than the annual average sunshine hours. Based on meteorological data and the natural environment of the site, 6h/A. According to the specifications and installation convenience of the solar cells, P2=200W is taken, and the actual configuration is 100Wx2 blocks.
6 Equipment Selection Equipment selection is shown in Table 1.
Table 1 Equipment Selection Equipment Name, Model, Specification, Unit Quantity Wind Power Generator, Wind Power Complementary Controller, Lamp Pole Root, Solar Cell Block, Battery Only, Solar Cell Support Set, 7-way Lamp Pole Design Plan Wind Power Generator and Solar Cell Assembly are iconic combinations of Wind Power Complementary Street Lights. To ensure the smooth and safe operation of the wind power generator and solar cell assembly, as well as to cooperate with the diverse shapes of the street lamp poles, The wind solar complementary street lamp pole should be designed as a self-supporting lamp pole. The wind turbine is located at the top of the lamp post, and the solar cell module is located in the middle of the lamp post.
The strength design of the lamp post should comply with the construction and acceptance specifications for urban road lighting engineering, the technical requirements for small wind turbines for lamp posts and wind turbine tower tubes, and have a significant difference from the natural frequency of the wind turbine, which can withstand typhoons of level 12. The height of the lamp post should be determined based on the geographical environment of the installation site to ensure that the use of the wind turbine is not affected. The installation of solar cell modules is generally based on not interfering with the wind turbine blades, while ensuring that the solar cell modules are not obstructed by the light poles. The installation height of the lighting fixtures is determined based on the illumination requirements of the design.
Wind and solar energy are both pollution-free and inexhaustible renewable energy sources. Small and medium-sized wind power and solar photovoltaic systems have been preliminarily applied in China. The perfect combination of wind power and solar photovoltaic power has laid the foundation for the scale, industrialization, and marketization of the two new energy sources. The early application of small and medium-sized wind turbines in remote areas had good natural conditions, low cost, non aesthetic design requirements, and low technical requirements. Transferred to economically developed areas for use, with relatively poor natural conditions, low industrialization, high technical requirements, relatively high costs, and aesthetic design requirements. With significant regional environmental and demand differences, the demand for wind solar complementary power generation technology has increased. A series of technologies such as low wind speed start-up, low voltage energy storage, strong typhoon resistance, salt spray corrosion resistance, and intelligent control are constantly being developed. On the basis of strong national support and increasingly improved technology of wind solar complementary street lighting systems, people will see rows of wind solar complementary street lights 7-9 on the streets and roads in the future |
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