Three-phase grid-connected inverters interface for alternative energy sources with Unified Constant-frequency Integration control

被引：0

作者：

Qiao, CM ^{[1
]}

Smedley, KM ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Elect & Comp Engn, Irvine, CA 92697 USA

来源：

CONFERENCE RECORD OF THE 2001 IEEE INDUSTRY APPLICATIONS CONFERENCE, VOLS 1-4 | 2001年

关键词：

alternative power generation; grid-connected inverter; utility interface; PWM; One-cycle control;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A new control approach for three-phase grid-connected inverters is presented. The inverter stage is a standard three-phase half bridge. During each 60 of line cycle, the three-phase half bridge can be de-coupled into parallel-connected a dual-buck inverter. Based on One-cycle control, a Unified Constant-frequency Integration controller (UCI) is proposed for the dual-buck inverter. The controller is comprised of an integrator with reset, along with some linear and logic components. No multipliers are required. Low current distortion and unity-power-factor are achieved in the control loop. The input to the inverter can be fuel cells, photovoltaic power, wind power, etc. The three-phase currents injected to the grid are sinusoidal. The simplicity and performance of the proposed inverter make it a great candidate for gridconnected alternative energy generation.

引用

页码：2675 / 2682

页数：8

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