Online learning optimization design method for photovoltaic water pump system rotation speed adjustor
A speed regulator, photovoltaic water pump technology, applied in control systems, vector control systems, control electromechanical brakes, etc., can solve the problems of difficult selection of voltage regulator parameters, high requirements for system control performance, and difficult accurate estimation of measurement methods , to achieve the effects of improving safety and reliability, simple calculation, and simple control strategy
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[0023] Hereinafter, the present invention will be further described in detail based on the drawings and embodiments.
[0024] An online learning optimization design method for a speed regulator of a photovoltaic water pump system includes the following steps:
[0025] (1) The control mode of the photovoltaic water pump system of the present invention is a position sensorless vector control mode. The inner loop of the control system is a torque loop and a magnetic link loop, while the outer loop uses a parallel connection of a DC voltage loop and a speed limiting loop. The sum of its output is used as the given torque current i q * . Such as figure 1 As shown, when the photovoltaic water pump system runs below the rated power, the speed regulator does not work, its output is 0, only the voltage regulator plays the role of maximum power point stabilization; when the maximum output power of the photovoltaic array is greater than the rated power of the pump motor At this time, stop se...
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