Solar photovoltaic Shanghai solar energy street lamp power system calculation method

The size of the photovoltaic system and application forms, such as system size span is very big, small to a few watts of solar garden light, big to MW of solar photovoltaic power station. The application form is varied, in the home, transportation, communications, space applications, and many other fields can



the size of the photovoltaic system and application forms, such as the system size span is very big, small to a few watts of solar garden light 【 Solar garden light with solar radiation for energy, using solar panels to the battery during the day and night use battery to power a courtyard light source, without complex and expensive pipeline laid, can be arbitrary adjust the layout of the lamps and lanterns, safety and energy saving pollution-free, charging and the on/off process adopts intelligent control, electric automatic switch, without manual operation, stable and reliable work, saving electricity, maintenance free. 】 Level to MW solar photovoltaic power station 【 Solar photovoltaic power station by the solar cell phalanx called solar radiant energy into electrical energy power station solar photovoltaic power station. 】 。 Its application form is varied, in the home, transportation, communications, space applications, and many other fields can be widely used. Although pv systems have different size, but its composition structure and working principle are basically the same.

solar power system consists of solar array 【 English name: English name: solar cells solar cell module name: other component definition: has encapsulation and internal connection, can separately provide dc output, indivisible minimum combination of solar cell device. 】 【, solar controller Called the solar controller solar charge controller, is used for solar power generation system, the control of multiple solar cell phalanx of battery and battery for solar power inverter load automatic control equipment. 】 , battery ( Group) Composition. Such as the output power for ac 220 v or 110 v, also need to configure the inverter 【 Inverter is the direct current (dc) can ( Batteries, battery) Converted into alternating current (ac) ( General is 220 v, 50 hz sine wave) 。 】 。 The role of each part is:

( A) Solar panel: solar panel is the core part of solar power generation system, is also a valuable part of the solar system. Its role is to convert the sun's radiation ability of electrical energy, or sent to stored in batteries, or promote work load.

( 2) The role of the solar controller: solar controller is to control the working state of the whole system, and battery over charging protection, over discharge protection role. Where the temperature difference is bigger, qualified controller should also have the function of temperature compensation. Other additional functions such as light-operated switch, switch should be when the controller is optional;

( 3) Battery: general for lead-acid battery' Lead-acid batteries, VRLA） , it is a kind of electrode is mainly composed of lead and its oxide, electrolyte battery is a sulfuric acid solution. 】 , small miniature system, also can use nimh batteries, nickel cadmium battery 【 Nickel cadmium battery is a kind of dc power supply battery, nickel cadmium battery charge and discharge can be repeated more than 500 times, economic and durable. 】 Or lithium battery. Its role is solar panels while have light 【 Solar panels, 太阳能板) Is by absorbing sunlight, the solar radiation through the photoelectric effect or photochemical effect directly or indirectly converted into electrical energy device, the main material of most of the solar panel as the 'silicon', but because of the production cost is larger, so it widely used, we still have some limitations. 】