TMS320F2812-based unified control method for photovoltaic grid connection and power quality comprehensive management
A technology of comprehensive treatment and control methods, applied in the direction of photovoltaic power generation, single network parallel feeding arrangement, AC network to reduce harmonics/ripples, etc., can solve the problems of grid stability, high cost, single function, etc., to avoid Influence and increase the effect of interest rate and cost performance
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[0024] The invention will be further described below in conjunction with the accompanying drawings.
[0025] figure 1 It is a schematic diagram of the principle of a unified control method for photovoltaic grid-connected and power quality comprehensive management based on TMS320F2812. The method takes the TMS320F2812 DSP control chip as the core, and cooperates with the signal conditioning circuit to detect the three-phase current of the distribution network; according to the detected three-phase current value, the three-phase current compensation value of the distribution network is calculated by the instantaneous reactive power detection algorithm, And combined with the maximum power point tracking algorithm (MPPT) to obtain the three-phase grid-connected current command; according to the calculated current command, the hysteresis comparison current tracking control method is used to form a PWM pulse and drive the power tube through photoelectric isolation. After filtering ...
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