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1、太原理工大学 硕士学位论文 光伏电能在城市路灯照明中的应用设计 姓名：霍永涛 申请学位级别：硕士 专业：检测技术与自动化装置 指导教师：马福昌 20100501 I 21 MW LED LED LED , LED LED II ATmega128 AT m e g a 1 2 8 LED LED LED PA M PAM2842 LED PAM2842 24V 10 3W LED 700mA 37.2V LED LED LED LED LED LED III THE DESIGN OF PHOTOVOLTAIC ENERGY IN CITY STREET LIGHTING ABSTRACT I
2、n the 21st century,with the intensification of the world energy crisis, solar energy is considered as the most common and clean energy. It is focused on by human with its inexhaustible and unpollution advantages. In the human life, the solar PV has very extensive use, the basic form of which can be
3、divided into two categories: independent power generation and combined to the grid. With the development of photovoltaic technology and the need of world sustainable development, the developed countries have also started to promote photovoltaic combined to the grid in the city, mainly to build the P
4、V system of household rooftop and the MW-level large-scale combined to the grid system. At the same time, the application of solar PV in the construction of urban lighting has also been greatly promoted. At present, the domestic solar photovoltaic technology in the city lighting has shown rapid deve
5、lopment momentum,such as street lights, signs, lawn lamp of roads, schools, parks, residential quarters and other places, making the city more environmentally, energy saving, convenient and safe in the public lighting. In order to respond positively to the call of national energy saving and emission
6、 reduction and developing low-carbon economy,for the purpose of its IV practical application, from the starting of the photovoltaic properties of solar cells, arounding the solar photovoltaic technology and LED lighting technology, the solar LED lights systems is designed to meet the use of road lig
7、hting in Taiyuan city. The system consists of solar cells, batteries, controller, LED light source and constant current drive circuit and other components. The solar silicon photovoltaic panels convert solar energy into electrical energy stored in batteries, which provides power for the entire syste
8、m. The task analyzes the selected principles of solar cell power and the matching method of battery capacity,and calculates solar power and battery capacity, which solves the problem of the short battery life and low reliability of system,because the controller protects the battery inadequatly to make it often being over discharge or overcharge. At the same time,the drive of LED street light is analyzed. Theref
