Maximum power tracking control method for small permanent-magnet direct-drive wind power generation system
A technology of wind power generation system and maximum power tracking, which is applied in the control of wind turbines, wind power generation, wind turbines, etc. It can solve the problems of poor tracking accuracy, high cost, and errors, so as to improve speed and accuracy and save control costs , Improve the effect of tracking speed
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[0045] The preferred embodiments are described in detail below in conjunction with the drawings. It should be emphasized that the following description is only exemplary, and is not intended to limit the scope and application of the present invention.
[0046] figure 1 This is the hardware structure diagram of the embodiment of the present invention. Among them, the main parameters of the small permanent magnet direct drive wind turbine 2 are: the diameter of the wind wheel is 1.2m, the rated power is 300W, the rated voltage is 24V, the rated speed is 800r / min, and it starts Wind speed 1m / s, rated wind speed 10m / s, safe wind speed 25m / s; the main parameters of the maximum power tracking device are: MPPT controller adopts dsPIC33FJ06GS101 single-chip microcomputer, DC-DC converter adopts Boost circuit, drive module chooses MCP14E3, voltage sensor 5. Choose LV28-P, current sensor 8 chooses LA25-NP, speed sensor 3 adopts voltage zero-crossing detection frequency meter, first capaci...
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