Abstract
Based on Grid Technology Based on distributed power generation system, and to achieve the output active power harmonic suppression for the purpose of designing a new type of DSP control inverter. This device uses DSP to detect harmonic current of power grid, the speed of DSP to ensure that the system has instantaneity, eliminates the influence of detection delay of the system, so as to realize the instantaneous detection of harmonics; at the same time, through the detection of DSP signal processing, finally realizes the control of the inverter in the launch of IGBT. The experimental results are given and no harmonics under two kinds of situations, this new device in the active power input power at the same time, also has a good inhibitory effect on the harmonic in the power grid. The results show that the device achieves the expected function, and has better stability and practicability.
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