模块化有源电力滤波器谐波补偿
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摘要
有源电力滤波器(APF)作为一种应用在电力系统中的谐波抑制装置,具有谐波抑制效果好、动态响应快等优点。传统APF—般采用两电平和三电平结构,难以满足高压大容量的需求,此处研究了基于模块化多电平换流器(MMC)的APF结构。传统APF控制思想是对负载畸变电流中的谐波进行完全补偿,鉴于电力系统的特征次谐波以5,7,11,13为主,此处研究了基于特征次谐波补偿的检测控制算法,以降低APF的补偿容量。最后通过实验验证了控制策略的有效性。
As a kind of harmonic suppression device used in power system,active power filter(APF) has the advantages of good harmonic suppression effect and fast dynamic response.Traditional APF generally uses two-level and three-level structures, which is difficult to meet the demand of high voltage and large capacity. The APF structure based on modular multilevel converter(MMC) is studied.The traditional APF control idea is to compensate the harmonic in the load distortion current completely, considering the specific order harmonics of power system are 5,7,11 and 13,a detection and control algorithm based on specific order harmonics compensation is studied in order to reduce the compensation capacity of APF.Finally,the effectiveness of the control strategy is verified by experiments.
As a kind of harmonic suppression device used in power system,active power filter(APF) has the advantages of good harmonic suppression effect and fast dynamic response.Traditional APF generally uses two-level and three-level structures, which is difficult to meet the demand of high voltage and large capacity. The APF structure based on modular multilevel converter(MMC) is studied.The traditional APF control idea is to compensate the harmonic in the load distortion current completely, considering the specific order harmonics of power system are 5,7,11 and 13,a detection and control algorithm based on specific order harmonics compensation is studied in order to reduce the compensation capacity of APF.Finally,the effectiveness of the control strategy is verified by experiments.
引文
[1]王兆安,杨君,刘进军.谐波抑制和无功功率补偿[M].北京:机械工业出版社,1998.
[2]陈坚.电力电子学[M].北京:高等教育出版社,2002.
[3]陈国柱,吕征宇,钱照明.有源电力滤波器的一般原理及应用[J].中国电机工程学报,2000,20(9):17-21.
[4]李琼林,刘会金,孙建军,等.大容量有源滤波器的拓扑结构分析[J].高电压技术,2006,32(2):70-74.
[5]李红雨,吴隆辉,卓放,等.多重化大容量有源电力滤波器的主电路结构研究[J].电网技术,2000,28(23):12-16.
[6]何英杰,刘进军,唐健,等.适用于二极管钳位型三电平有源滤波器的母线电压数字控制方法[J].中国电机工程学报,2008,28(36):55-60.
[7] Perez M A, Bernet S, Rodriguez J,et al.Circuit Topologies,Modeling, Control Schemes, and Applications of Modular Multilevel Converters[J].IEEE Trans. on Power Electronics,2015,30(1):4-17.
[8]熊桥波,罗安,马伏军.模块化多电平SVG负序补偿容量比较[J].中国电机工程学报,2014,34(24):4049-4056.
[2]陈坚.电力电子学[M].北京:高等教育出版社,2002.
[3]陈国柱,吕征宇,钱照明.有源电力滤波器的一般原理及应用[J].中国电机工程学报,2000,20(9):17-21.
[4]李琼林,刘会金,孙建军,等.大容量有源滤波器的拓扑结构分析[J].高电压技术,2006,32(2):70-74.
[5]李红雨,吴隆辉,卓放,等.多重化大容量有源电力滤波器的主电路结构研究[J].电网技术,2000,28(23):12-16.
[6]何英杰,刘进军,唐健,等.适用于二极管钳位型三电平有源滤波器的母线电压数字控制方法[J].中国电机工程学报,2008,28(36):55-60.
[7] Perez M A, Bernet S, Rodriguez J,et al.Circuit Topologies,Modeling, Control Schemes, and Applications of Modular Multilevel Converters[J].IEEE Trans. on Power Electronics,2015,30(1):4-17.
[8]熊桥波,罗安,马伏军.模块化多电平SVG负序补偿容量比较[J].中国电机工程学报,2014,34(24):4049-4056.