中国电机工程学报2012，Vol.32Issue(12)：22-27,6.
单相三电平并网逆变器的改进无差拍电流控制
Improved Deadbeat Current Control of Single-phase Three-level Grid-connected Inverters
摘要
Abstract
The control performance of traditional deadbeat current control is easily affected by the variation of filtering inductor.In single-phase three-level grid-connected inverter,a dual reference waves three-level sine pulse width modulation（SPWM） method that suitable for implementation by DSP was introduced firstly,and then the dynamic mathematical model of the grid-connected inverter based on the aforementioned pulse width modulation（PWM） method was derived.On the basis,an online inductor identification method adopting two current samples was proposed.Combining with digital low-pass filter,real time inductor identification result was obtained.This result was applied into deadbeat current control algorithm,thus the grid-connected current control performance is increase efficiently.Corresponding experimental results verified the accuracy and feasibility of the proposed method.关键词
三电平/并网逆变器/无差拍电流控制/电感辨识/双调制波Key words
three-level/grid-connected inverter/deadbeat current control/inductor identification/dual references分类
信息技术与安全科学引用本文复制引用
郭松林,沈显庆,付家才..单相三电平并网逆变器的改进无差拍电流控制[J].中国电机工程学报,2012,32(12):22-27,6.基金项目
黑龙江省自然科学基金项目（E200734）~~ （）
