Calculation method of solar photovoltaic system
With the shortage of traditional energy sources, solar energy applications will become more and more widespread, especially in the field of solar power generation in a few years has developed industries. 1: one of the most important link of the restriction of solar power applications is the price, with a pair of solar street road as an example, two loads such as 6 in the lower reaches of the effective light 4.5h/ days, every night on 7 hours, increase the battery in 20% reservation amount) the panels would need about 160W, according to the panels the cost will be 4800 yuan, plus the battery cost about 180AH is around 1800, the whole street is one-time large investment costs caused by the main bottleneck of application of solar street lamp. 2: the service life of the battery should be considered in the application of the lamp system, the battery warranty for three years or five years, but in general. Half a year later there will be charging dissatisfaction with the situation, some of the actual charging rate could fall to around 50%, which will affect the continuous rainy days during the night is very important to choose a good battery. 3: some engineering companies often use the LED lamp as solar street lighting, LED lamp layer but the quality is uneven, serious attenuation of LED semi illumination 50%. The best choice for light and long service life, high light efficiency, light slow LVD electrodeless lamp, or use low pressure sodium lamp. 4: a problem for the selection of the controller is often ignored by the project, the quality controller is uneven, the 12V/10A controller market price range, although is the smallest part of the value of the entire lighting system, but it is a very important link. The controller has a direct impact on the cost of procurement, Sun Life and the whole system: one should choose the controller with low power consumption controller, 24 hours of uninterrupted work, such as power energy, the best choice of power consumption at 1 Ma (MA) following controller. Two: to choose a high cha
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