| 改进的三相并网VSI电流预测控制策略研究 |
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| 引用本文： | 咸秀超,杜少武,张丽君,方勇.改进的三相并网VSI电流预测控制策略研究[J].电力电子技术,2011,45(11):4-6. |
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| 作者姓名： | 咸秀超 杜少武 张丽君 方勇 |
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| 作者单位： | 合肥工业大学,电气与自动化工程学院,安徽合肥230009 |
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| 摘 要： | 改进了电压源逆变器(VSI)传统电压电流双环控制策略,电网电压前馈补偿电网谐波干扰,双定时器实现多重采样,软件预算与滤波减小采样误差和系统控制非线性延迟。在一台6 kW光伏并网逆变器上进行了实验,实验结果证明了该预测控制算法提高了输出电流质量,多重采样缩短了控制延迟,控制器性能优越。
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| 关 键 词： | 电压源逆变器 预测控制 并网 |
Research on Improved Current Predictive Control Strategy for Three-phase Grid-connected VSI |
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| XIAN Xiu-chao,DU Shao-wu,ZHANG Li-jun,FANG Yong.Research on Improved Current Predictive Control Strategy for Three-phase Grid-connected VSI[J].Power Electronics,2011,45(11):4-6. |
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| Authors: | XIAN Xiu-chao DU Shao-wu ZHANG Li-jun FANG Yong |
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| Affiliation: | (Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The traditional double-loop control algorithm for VSI is improved,feed-forward compensation is used to suppress disturbance of grid harmonics,the dual-timer achieves multi-sampling,the software predictor and filter are designed to eliminate sampling error and nonlinear system control delay.Experiment is implemented in a 6 kW PV grid-connected inverter,the results verify the new predictive control algorithm improves the quality of output current,multi-sampling reduces the control delay,the current controller’s performance is superior. |
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| Keywords: | volatage source inverter predictive control grid-connected |
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