基于LCL滤波的三电平滤波器在煤矿电网的应用
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摘要
针对煤矿提升机供电网络的这一问题,文章采用一种基于LCL滤波的有源滤波器(APF)来达到降低煤矿电网谐波的目的。该滤波器主回路采用NPC型三电平拓扑结构,通过电容电流反馈的有源阻尼方法实现对LCL滤波器的稳定性控制问题。对于有源滤波器(APF)的电流跟踪控制问题,采用基于重复原理的复合控制方法,将比例控制与重复控制结合在一起,有效的解决了传统PI控制的不足,且原理简单,易于工程实现。最后通过Matlab对所设计的LCL滤波器与电流跟踪控制方法进行仿真验证,并通过实验平台对其进行了实验验证。
In order to solve hoist power grid problem in coal mines,the APF based on LCL-filter is developed to reduce harmonic wave in the mine grid. With a NPC three-level topology,the stability of the LCL-filter implementation is ensured through the active damping method of capacitor current feedback control. Current tracking control is a key issue for APF,considering the defects of traditional PI control,a compound control method based on repetitive theory is proposed,which is an integration of proportional control and repetitive control. The control theory is simple and easy for project implementation.Finally,the designed LCL filter and the current tracking control method are tested through simulation,which have verified the method.
In order to solve hoist power grid problem in coal mines,the APF based on LCL-filter is developed to reduce harmonic wave in the mine grid. With a NPC three-level topology,the stability of the LCL-filter implementation is ensured through the active damping method of capacitor current feedback control. Current tracking control is a key issue for APF,considering the defects of traditional PI control,a compound control method based on repetitive theory is proposed,which is an integration of proportional control and repetitive control. The control theory is simple and easy for project implementation.Finally,the designed LCL filter and the current tracking control method are tested through simulation,which have verified the method.
引文
[1]王峰,张旭隆,曹言敬.基于分频控制三电平四桥臂APF在煤矿中的应用[J].煤炭工程,2017,49(2):65-67,71.
[2]周佩华,王峰,王敦胜,等.串联12脉波电路谐波的MATLAB仿真与滤波器设计[J].煤矿机械, 2006, 27(10):44-46.
[3]王峰,张旭隆,曹言敬.三电平DSTATCOM在煤矿中的应用[J].煤炭工程,2016,48(12):63-65,69.
[4]李宏慧.煤矿直流提升机系统谐波治理研究[J].煤炭工程,2015,47(12),107-109.
[5]冯文轶.三电平四桥臂有源滤波器在煤矿电网中的应用[J]煤炭科学技术,2014,42(8):86-89.
[6]王杰,张玉超.动态无功补偿装置在煤矿电网中的应用[J].煤炭科学技术,2010,38(5):107-110.
[7]张国荣,李宗钧,陈鹏.并联有源电力滤波器中LCL滤波器的分析与设计[J].高压电器,2011,47(6):19-22.
[8]张东江,仇志凌,李玉玲,等.基于LCL滤波器的高稳态性能并联有源电力滤波器[J].电工技术学报,2011,26(6):137-143.
[9]王峰,张旭隆.基于复合型自适应广义积分器三电平APF研究[J].电气自动化,2014,36(5):62-64.
[10]王峰,张旭隆,何凤有,等.基于复合模型预测控制策略的三电平APF研究[J].电力系统保护与控制,2014,42(11):79-85.
[11]李新宇,邓先明,李德路,等.并联型APF三相四线制系统的控制策略研究[J].电力电子技术,2010,44(2):49-50.
[2]周佩华,王峰,王敦胜,等.串联12脉波电路谐波的MATLAB仿真与滤波器设计[J].煤矿机械, 2006, 27(10):44-46.
[3]王峰,张旭隆,曹言敬.三电平DSTATCOM在煤矿中的应用[J].煤炭工程,2016,48(12):63-65,69.
[4]李宏慧.煤矿直流提升机系统谐波治理研究[J].煤炭工程,2015,47(12),107-109.
[5]冯文轶.三电平四桥臂有源滤波器在煤矿电网中的应用[J]煤炭科学技术,2014,42(8):86-89.
[6]王杰,张玉超.动态无功补偿装置在煤矿电网中的应用[J].煤炭科学技术,2010,38(5):107-110.
[7]张国荣,李宗钧,陈鹏.并联有源电力滤波器中LCL滤波器的分析与设计[J].高压电器,2011,47(6):19-22.
[8]张东江,仇志凌,李玉玲,等.基于LCL滤波器的高稳态性能并联有源电力滤波器[J].电工技术学报,2011,26(6):137-143.
[9]王峰,张旭隆.基于复合型自适应广义积分器三电平APF研究[J].电气自动化,2014,36(5):62-64.
[10]王峰,张旭隆,何凤有,等.基于复合模型预测控制策略的三电平APF研究[J].电力系统保护与控制,2014,42(11):79-85.
[11]李新宇,邓先明,李德路,等.并联型APF三相四线制系统的控制策略研究[J].电力电子技术,2010,44(2):49-50.