T型三电平并网逆变器的设计与实现
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摘要
本文以DSP芯片TMS320F28035为控制核心设计了一台T型三电平并网逆变器,对逆变器基于PI电压外环和PR电流内环的双闭环控制进行说明,并详细介绍了主电路系统和控制系统的元器件选型与设计方案。并网实验结果表明,该逆变器输出电流稳定且相位对称,谐波失真度低,满足逆变器并网所需达到的电能质量要求,证明了逆变器设计参数的合理性与控制方案的可行性。
A T-type three-level grid-connected inverter is designed with DSP chip TMS320 F28335 as the control core. The article explains double closed loop control strategy based of PI voltage outer loop and PR current inner loop, and details the main circuit system and control system components selection and design options.According to the grid experiment results,the output current of the inverter is stable and its phase is symmetrical,the harmonic distortion is low, which meets the requirements of power quality required by inverter grid connection and proves the rationality of the inverter design parameters and the feasibility of the control scheme.
A T-type three-level grid-connected inverter is designed with DSP chip TMS320 F28335 as the control core. The article explains double closed loop control strategy based of PI voltage outer loop and PR current inner loop, and details the main circuit system and control system components selection and design options.According to the grid experiment results,the output current of the inverter is stable and its phase is symmetrical,the harmonic distortion is low, which meets the requirements of power quality required by inverter grid connection and proves the rationality of the inverter design parameters and the feasibility of the control scheme.
引文
[1]单亮.基于TMS320F28335的T型三电平光伏并网逆变器的设计与实现[D].合肥:合肥工业大学,2017.
[2]姚修远,吴学智,杜宇鹏,等.T型中点钳位三电平逆变器的零电流转换软开关技术[J].电工技术学报,2016,31(23):179-188.
[3]吴雷,徐鹏.三电平并网逆变器结构优化及中点电压控制[J].电力电子技术,2016,50(6):9-12.
[4]Schweizer M,Kolar J W.Design and implementation of a highly Efficient Three-Level T-Type converter for Low-Voltage applications[J].IEEE Transactions on Power Electronics,2013,28(2):899-907.
[5]王美龄,王丽梅,孙永亮.一种基于模型预测控制的T型三电平逆变器中点电位平衡控制方法[J].电气工程学报,2015,10(9):66-72.
[6]Schweizer M,Lizama I,Friedli T,et al.Comparison of the chip area usage of 2-level and 3-level voltage source converter topologies[C]//IECON 2010-Conference on IEEE Industrial Electronics Society,391-396.
[7]苏家庆.一种新的三电平光伏逆变器中点平衡算法[J].电气技术,2016,17(8):46-49.
[8]杜睿.T型三电平逆变器的设计与实现[D].成都:西南交通大学,2016.
[9]杜韦辰.基于准比例谐振控制的T型三电平整流器系统设计[J].自动化与仪器仪表,2017,37(11):64-66.
[10]马琳,金新民,唐芬,等.三相并网逆变器比例谐振控制及其网压前馈问题分析[J].电工技术学报,2012,27(8):56-63.
[2]姚修远,吴学智,杜宇鹏,等.T型中点钳位三电平逆变器的零电流转换软开关技术[J].电工技术学报,2016,31(23):179-188.
[3]吴雷,徐鹏.三电平并网逆变器结构优化及中点电压控制[J].电力电子技术,2016,50(6):9-12.
[4]Schweizer M,Kolar J W.Design and implementation of a highly Efficient Three-Level T-Type converter for Low-Voltage applications[J].IEEE Transactions on Power Electronics,2013,28(2):899-907.
[5]王美龄,王丽梅,孙永亮.一种基于模型预测控制的T型三电平逆变器中点电位平衡控制方法[J].电气工程学报,2015,10(9):66-72.
[6]Schweizer M,Lizama I,Friedli T,et al.Comparison of the chip area usage of 2-level and 3-level voltage source converter topologies[C]//IECON 2010-Conference on IEEE Industrial Electronics Society,391-396.
[7]苏家庆.一种新的三电平光伏逆变器中点平衡算法[J].电气技术,2016,17(8):46-49.
[8]杜睿.T型三电平逆变器的设计与实现[D].成都:西南交通大学,2016.
[9]杜韦辰.基于准比例谐振控制的T型三电平整流器系统设计[J].自动化与仪器仪表,2017,37(11):64-66.
[10]马琳,金新民,唐芬,等.三相并网逆变器比例谐振控制及其网压前馈问题分析[J].电工技术学报,2012,27(8):56-63.