基于虚拟磁通的并网逆变器直接功率控制研究

被引：2

作者：

胡学刚 ^{[1
]}

戴训江 ^{[2
]}

机构：

[1] 湖北省输变电工程有限公司

[2] 艾默生电气科技资源有限公司

来源：

电网与清洁能源 | 2012年 / 28卷 / 10期

关键词：

并网; 逆变器; 虚拟磁通; 直接功率;

D O I：

暂无

中图分类号：

TM464 [逆变器];

学科分类号：

080801 ;

摘要：

基于传统直接功率控制的策略思想,改变以L电感并入电网的拓扑结构,提出基于LCL滤波器的直接功率控制,系统分析有源阻尼,谐波抑制,虚拟磁通估计和锁相环PLL等控制算法,进而提出改进的直接功率控制策略。在MATLAB/SIMULINK的仿真平台上,分别搭建光伏并网的主电路模型,以及包含有源阻尼,谐波抑制,虚拟磁通估计和PLL模块的统一协调的控制系统,仿真结果表明改进的直接功率控制能有效改善并网逆变器的电流质量,降低总谐波畸变率,并使电网电压和注入电网电流同相,功率因数为1。

引用

页码：87 / 91

页数：5

共 9 条

[1]

Digital PLL Control forSingle-phase Photovoltaic System. J W Choi,Y K Kim,H G Kim. Electric Power Ap-plications,IEE Proceeding . 2006

[2]

Design and Control of a Three-phase ActiveRectifier Under Non-ideal Operating conditions. M.Liserre,A.D.Aquila. Conference ofIndustry Applications Conference . 2002

[3]

A control method to damp oscillation inthe input LC filter of AC-DC PWM converters. DAHONO P A. Proc.IEEE PESC . 2002

[4]

Overriding individualharmonic current control with fast dynamics for activefiltering. PONNALURI S,BRICKWEDDE A. Proc.IEEE PESC . 2001

[5]

Analysis of a PWM AC to DC voltage source converter under the predicted current control with a fixed switching frequency. Wu R,Dewan S B,Selmon G R. IEEE Transactions on Industry Applications . 1991

[6]

Virtual-flux-based direct power control of three-phase PWM rectifiers. Malinowski M,Kazmierkowski M P,Hansen S,et al. IEEE Transactions on Industry Applications . 2001

[7]

An improved stator flux estimation in steady-state operation for direct torque control of induction machines. Nik Rumzi Nik Idris,Adbul Halim Mohamed Yatim. IEEE Transactions on Industry Applications . 2002

[8]

Direct power control of PWM converter without power-source voltage sensors. Noguchi T,Tomiki H,Kondo S,et al. IEEE Transactions on Industry Applications . 1998

[9]

Grid current regulation of a three-phase voltage source inverter with an LCL input filter. Erika Twining,Donald Grahame Holmes. IEEE Transactions on Power Electronics .

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