Grid connected inverter with harmonic suppression based on DSP control

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Xia, Fei^1 ; Xia, Zongze^1 ; Cong, Peixian^1 ; Yang, Zhixiong^2 ; Song, Hanbiao^1 ; Hong, Xiubin^1

State Grid Liaoyang Electric Power Supply Company, Liaoyang

111000, China^1

Kunming Institute of Physics, Kunming

650223, China^2

关键词: Active power;    Detection delays;    Distributed power generation systems;    Grid connected inverters;    Harmonic currents;    Harmonic suppression;    Inhibitory effect;    New devices;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042144/pdf
DOI  :  10.1088/1755-1315/170/4/042144

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

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.