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Application of subdivision stepper drive in solar tracking system

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Date：2023-04-11

     Energy shortage is an important problem facing many countries at present. Solar energy, as a clean and pollution-free energy, has a huge development prospect. China is a country with abundant solar energy resources, making full use of solar energy resources has far-reaching energy strategic significance.

     The key to the use of solar energy is to improve the efficiency of solar panels to collect solar energy, in the past, solar panels on the market with fixed installation, so that its conversion efficiency is low, no tracking ability. The solar tracking system combines the photoelectric sensor to design the solar automatic tracking.

    The solar tracking system is mainly divided into clock module, initial position verification, single chip microcomputer module and drive module. The drive module includes photoelectric isolation, stepper motor drive and stepper motor, in order to eliminate interference, the isolation between the MCU and the stepper motor drive needs to be added; Since the two-axis tracking is carried out in the two directions of altitude Angle and azimuth Angle, two identical drive modules are required.

洁净能源行业

      In the solar tracking system, the operation of the drive as a transmission module is mainly the application of subdivision drive, and the subdivision control of the stepper motor is realized by the driver precisely controlling the phase current of the stepper motor, and the motor runs more smoothly after subdivision.

      The three-dimensional subdivision drive is a 16-speed subdivision, taking the closed-loop drive DP57 as an example:

洁净能源行业

     At present, there are many kinds of solar tracking devices, but most of them are high cost and complex structure, and can not be widely used. A unique solar tracking device is simpler and less costly, and will have a broader application prospect.


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