Wind and solar complementary LED street lighting system design

2 The design elements of the system (1) make full use of wind energy and solar energy renewable energy to ensure uninterrupted power supply all year round.

(2 applicable environmental working conditions: temperature -15~45C relative humidity 95%; rain and coastal salt spray; wind speed 330m/S; instantaneous limit wind speed 40m/S; total solar radiation 150kca/cm2; annual sunshine 3000h. (3 Stability guarantee: It runs smoothly, safely and reliably, and can be used around the clock under unattended 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: Wind turbine generator design, manufacturing, product quality implementation of national and industry standards, product quality assurance system in line with the standard provisions.

Certificate specification, 1EC1215 crystalline silicon ground photovoltaic module design quality certification and type test, national standard GB/T1400792 land solar module general specification, GB/T14009 solar battery module parameter measurement method 6. (7 battery pack in line with national standard GB13337. 191 fixed lead-acid battery regulations, and tested by the testing organization that has obtained the GB/T15481 certification.

The total system power 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 panel board is P2, and the capacity of the battery pack is C. According to the natural resource conditions of the location where the street lamp is installed: the maximum continuous time that the wind turbine and the solar module cannot generate electricity at the same time is 3d; The maximum continuous time for the battery pack to not generate electricity is 12d; the maximum continuous time for the wind turbine to generate electricity is 6d. The determined side of the battery pack is 24 hours a day; according to the actual specifications of the battery and the original number of batteries, Take C=340Ah, the actual configuration is C=2V/340Ah battery 12 x1 group.

4 Determination of the power of wind turbines In the weather when solar cells cannot generate electricity, it is usually continuous rainy days. At this time, the wind speed and duration are much higher than the annual average wind speed and time. According to meteorological data and the natural environment of the site, The 4th grade wind in this period is based on the specifications of the wind turbine and the reliability of the actual installation and use. The actual configuration of MPSQW. is: 1 WV-02-350W wind turbine.

EV-02 series wind turbines have mechanical automatic clutch system, which can get rid of the high wind force requirement of traditional wind turbines, so that wind turbines can be started under very small wind conditions, and the speed and inertia are obtained in the blades. At the time, the clutch system automatically starts to drive the generator to generate electricity, which greatly improves the power generation efficiency of the wind turbine and doubles the working time of the wind turbine. The EV-02 series wind turbines have an autonomous yaw system. When the wind is not large, the windward surface can be actively aligned with the wind direction to obtain the largest windward area and improve the working efficiency of the wind turbine.

5 Determination of solar cell power In the weather when the wind turbine can not generate electricity, it is usually a continuous sunny day, and the daily sunshine hours are much higher than the annual average sunshine hours. According to the meteorological data and the natural environment of the site, take 6h/A. The specifications and installation of the solar cell are convenient and beautiful, take P2=200W, and the actual configuration is: 100Wx2 block.

6 Equipment selection equipment selection is shown in Table 1.

Table 1 Equipment Selection Equipment Name Model Specifications Unit Number Wind Turbine Stage Wind and Solar Complementary Controller Table Lamp Rod Root Solar Cell Block Battery Only Solar Battery Bracket Set 7 Light Rod Design Wind turbine and solar module are the signs of scenery complementary street lamps Sex combination, to ensure the smooth and safe operation of wind turbines and solar modules, and also with the diversified shape of street lamp poles, the wind-solar complementary street lamp pole should be designed as a self-standing pole. The wind turbine is located at the top of the pole and the solar module is located in the middle of the pole.

The strength design of the light pole should meet the requirements of urban road lighting engineering construction and acceptance specifications, small wind turbine technical conditions for light poles, wind turbine tower tubes, and the natural frequency of wind turbines is very different, can resist 12 typhoon. The height of the pole should be determined according to the geographical environment of the installation site to ensure that the use of the wind turbine is not affected. The installation of the solar cell module is generally not subject to the wind turbine's wind blade, and the solar cell module is not blocked by the lamp post. The installation height of the luminaire is determined by the illuminance required by the design.

8 Conclusion Wind energy and solar energy are non-polluting and inexhaustible renewable energy sources. Small and medium-sized wind power and solar photovoltaic systems have been initially applied in China. The perfect combination of wind power and solar photovoltaic power has laid the foundation for the scale, industrialization and marketization of two new energy sources. Early small and medium-sized wind turbines were used in remote areas, with good natural conditions, low cost, no aesthetic requirements, and low technical requirements. Transferred to economically developed areas, the natural conditions are relatively poor, the industrialization is low, the technical requirements are high, the cost is relatively high, and the modeling requirements are beautiful. With the differences in regional environment and demand, the requirements for wind-solar hybrid power generation technology are increasing, such as low wind speed start, low voltage energy storage, strong typhoon resistance, salt spray resistance, intelligent control, etc. The history of development. On the basis of the country's vigorous support and the perfection of the complementary street lighting system technology, people will see rows of scenery and complementary street lamps 7-9 on the street and on the road in the future.

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