Model-based generation of low distortion currents in grid-coupled PWM-inverters using an LCL output filter

被引：11

作者：

Bolsens, B ^{[1
]}

De Brabandere, K ^{[1
]}

Van den Keybus, J ^{[1
]}

Driesen, J ^{[1
]}

Belmans, R ^{[1
]}

机构：

[1] Catholic Univ Louvain, Dept Elect Engn, B-3001 Heverlee, Belgium

来源：

PESC 04: 2004 IEEE 35TH ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE, VOLS 1-6, CONFERENCE PROCEEDINGS | 2004年

关键词：

D O I：

10.1109/PESC.2004.1354816

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, a single phase LCL output stage for grid coupled applications is built and evaluated. An accurate model and observer of the output filter and the distorted grid voltage is implemented. This paper deals with the construction of a 14-state model, and the feedback control loop to obtain good closed loop response. Simulations indicate a good performance of the controller, with a total harmonic current distortion (THD) below 1%. Experimental results confirm the simulations, and illustrate the good operation of the Kalman observer to estimate the distorted grid voltage (THD 3%). The output filter effectively reduces the PWM harmonics in the grid current.

引用

页码：4616 / 4622

页数：7

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