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Working principle of intelligent wind turbine controller

(Summary description)The intelligent wind turbine controller regulates and controls the electric energy generated by the wind turbine.

Working principle of intelligent wind turbine controller

(Summary description)The intelligent wind turbine controller regulates and controls the electric energy generated by the wind turbine.

Information

The intelligent wind turbine controller regulates and controls the electric energy generated by the wind turbine. On the one hand, the adjusted energy is sent to the DC load or AC load, and on the other hand, the excess energy is charged to the battery pack according to the characteristic curve of the battery. , When the generated electricity can not meet the needs of the load, the controller sends the electric energy of the battery to the load. After the battery is fully charged, the controller must control the battery not to be overcharged. When the stored electric energy of the battery is discharged, the controller should control the battery not to be over-discharged to protect the battery.

intelligent wind turbine controller

The intelligent wind turbine controller uses a stepless unloading method to control the wind turbine to intelligently charge the battery. When the electric energy generated by the wind turbine exceeds the storage capacity of the battery, the control system must consume the excess energy. The common control method is to connect the entire unloading. At this time, the battery is generally not full, but all the energy is consumed in the unloading, which causes a waste of energy. Others use staged connection and unloading. The more stages, the better the control effect, but generally it can only achieve about five or six levels, so the effect is still not ideal. The best control method is to use pulse width modulation for stepless unloading, which can reach thousands of unloading. Therefore, under normal unloading conditions, it can ensure that the battery voltage is always stable at the float voltage point, but only the excess electric energy is released to the unloading. So as to ensure the best battery charging characteristics, so that the electric energy can be fully utilized.

Since the battery can only withstand a certain charging current and float voltage, overcurrent and overvoltage charging will cause serious damage to the battery. The intelligent wind turbine controller detects the charging voltage and charging current of the battery in real time through the single-chip microcomputer, and limits the charging voltage and charging current of the battery by controlling the charging current of the fan to ensure that the battery can be fully charged without being damaged. Thereby ensuring the service life of the battery.

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