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EPS emergency power supply 12V50AH lithium battery pack design example

EPS emergency power supply 12V50AH lithium battery pack design exampleGenerally, electrical equipment is divided into three major categories, namely resistive loads, such as bulbs, water heaters, televisions, and inductive loads (such as switched power suppliers, water pumps, ", air conditioner). The resistive load and capacitive loads are accumulated in actual power when calculating the total power, and the inductive load is accumulated by three times the actual power. The total power obtained is 1.2 is the power of the desired wind turbine. For example, 1 800W air conditioner + 3 60W bulbs + 1 200W TV, the required wind turbine power is (800 ¡Á 3 + 3 ¡Á 60 + 200) ¡Á 1.2 = 3336W. However, if the local wind resources are better, or shorter power-on wind turbines can be used to provide a daily required total electricity consumption.

Each reporter Week is edited by Chen Xudong, the northwest wind, the whiteboard is rich and red - traditional mahjong "waste", in the Sichuan mahjong in the bloody battle, in the Sichuan mahjong: completely discard Needless, leaving only "Tube Wan" three good cards. For my country's wind power generation industry, there seems to be in the same difficulty - green cleaning wind power, and there are hundreds of billion electricity, "abandonment", and more people say this is called "white Send "- White hair power makes it in waste. In 2014, the wind was 133 billion; in 2015, it was 33.9 billion kWh; in 2016, a record was recorded, only 326 billion kWh in the first half of the year.

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The branch of the solar cell formation is charged in parallel to the battery through the diode, the charging controller.

The charging controller adopts incrementally controlling the charging process of the solar cell to the battery. When the charging voltage of the battery pack reaches the set * high charging voltage, one or several square array power supply branches are automatically cut to limit the charging voltage of the battery to continue to grow, ensuring the life of the battery, and * Larger use and Save the electric energy emitted by the solar cell.

In mid-July, electricity central enterprises have successively held the annual work meeting. From the content of the announced meeting, since the high operation of the coal price, the electricity price is lowered, the coal-electricity utilization hours have decreased, abandoned the wind and other multiple disadvantages, and the production and operation of major groups still have pressure. However, through "improve development quality and efficiency, adhere to the reform and innovation reform", the profit of Power Generation is still growing, and even the goal of "longer half, profitable". New energy into profit growth contribution main force First Financial reporters learned that the national electricity investment, Huadian Group, Huaneng Group, Datang Group, which have been held in the New Year, reaffirmed and strengthened the need to increase development and intake energy.

Wind Turbine

Wind turbines are generally composed of a plurality of wind turbines and generators. The picture below is the wind turbine output power curve. Where VC is starting wind speed, VR is rated wind speed. At this time, the fan output is rated, VP is the cutoff wind speed.

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