Integrated application of software and hardware phase-locked loop on grid connection control for distributed wind power

被引：0

作者：

Zhu J. ^{[1
]}

Gu J. ^{[1
]}

Meng B. ^{[1
]}

Cao S. ^{[1
]}

Ren H. ^{[1
]}

机构：

[1] Institute of Electrical Engineering, Nantong University, Nantong

来源：

Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 01期

关键词：

Distributed power; Grid-connected control; Phase-locked loop; Signal processing and detection; Software and hardware combination;

D O I：

10.19912/j.0254-0096.tynxb.2020-0115

中图分类号：

学科分类号：

摘要：

Firstly, a grid-connected control design scheme is proposed innovatively combined software and hardware. Secondly, in the design of phase-locked loop(PLL), simulation and programming are carried out from aspects of hardware PLL and software PLL. The dual second order generalized integral phase-locked loop(DSOGI-PLL) is selected as the grid voltage signal acquisition technology in the control of small double-fed wind power (DFWG), and the corresponding program algorithm is developed to obtain the fundamental signal by DSP2812 microcontroller, which is used in actual the stator voltage orientation control of the DFWG system, realizing the reliability and anti-disturbance of the control target. Finally, combined with the voltage comparison signal of the grid side and the generator stator side, a hardware PLL is applied, the expected design goals are achieved through system joint debugging, the voltage difference between the grid side and the generator side is controlled within 2 Hz, the phase difference within 12°, and the RMS difference within 4 V, the design results are complied with national industry standards and have practical industry application value. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.

引用

页码：36 / 43

页数：7

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