基于诺顿等效模型的多节点电压偏差治理设计
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摘要
介绍了一种迭代方法来寻找小型配电网中单个有源电力滤波器(APF)的最优配置。文中有源电力滤波器的目的是综合降低整个电网的电压偏差,一种新的控制方法被提出。首先,本文给出了配电网电能质量的一些典型现象,然后研究了谐波源模型,考虑到诺顿等效模型相对简单且与这些典型现象一致,选择诺顿等效模型应用于系统建模。其次,本文对整个网络进行建模,并通过迭代计算来确定了APF的最佳位置。最后,研究了网络的动态特性,并用于有源电力滤波器的控制设计,提出了一种最小目标函数点跟踪(MOFPT)方法来解决这个问题。基于PSCAD/EMTDC的仿真证明了该方法的有效性。
This paper introduces an iterative method to find the optimal placement for single APF in a small distribution network.The objective of the APF is to reduce the voltage deviation in the whole network,and a novel control algorithm is presented for it.Firstly,some typical phenomena about the power quality in the distribution network is presented,then models of harmonic sources is studied and Norton approach is picked to be applied in the modeling of the system for its simplicity and consistency with the phenomena.Next,the whole network is modeled and the optimal placement of the APF is figured by iterative calculation. Finally,the dynamic characteristics of the network is studied and used to design the controller of the APF.A minimum objective function point tracking( MOFPT) method is proposed to solve the problems.Simulations based on PSCAD/EMTDC are implemented to justify the validity of the method..
This paper introduces an iterative method to find the optimal placement for single APF in a small distribution network.The objective of the APF is to reduce the voltage deviation in the whole network,and a novel control algorithm is presented for it.Firstly,some typical phenomena about the power quality in the distribution network is presented,then models of harmonic sources is studied and Norton approach is picked to be applied in the modeling of the system for its simplicity and consistency with the phenomena.Next,the whole network is modeled and the optimal placement of the APF is figured by iterative calculation. Finally,the dynamic characteristics of the network is studied and used to design the controller of the APF.A minimum objective function point tracking( MOFPT) method is proposed to solve the problems.Simulations based on PSCAD/EMTDC are implemented to justify the validity of the method..
引文
[1]唐欣,滕本科,涂春鸣.并联型有源电力滤波器的无功功率选择性补偿方法[J].高电压技术,2012,38(06):1480-1485.
[2]易皓,卓放,詹文达,翟浩.用于并联型有源电力滤波器的谐振调节器选择性特性比较分析[J].中国电机工程学报,2014,34(30):5320-5328.
[3]张国荣,陈夏冉,颜丽花.基于隔离小生境粒子群算法的APF优化配置[J].电子测量与仪器学报,2017,31(02):208-215.
[4]唐嵩棋.APF的LCL滤波器的设计及其电流控制策略研究[D].哈尔滨工业大学,2012.
[5]侯桂兵,涂春鸣,罗安,等.微电网中APF接入位置与容量优化配置方案[J].电力自动化设备,2012,32(05):29-33.
[6]侯桂兵.微网电能质量治理装置优化配置与协同控制研究[D].湖南大学,2012.
[7]邹舒,张程柯,付永生,等.电气化铁路谐波叠加问题研究[J].电气应用,2013,32(21):68-73.
[8]梁伟,侯世英,李福,等.常见家用电器谐波特性及功率特性分析[J].现代建筑电气,2011,2(12):52-56+60.
[9]雍静,娄方桥,王一平,等.低压配电系统单相非线性负荷的谐波衰减效应研究[J].中国电机工程学报,2011,31(13):55-62.
[10]雍静,陈亮,陈双燕.台式计算机负荷的频域谐波模型及衰减特性[J].中国电机工程学报,2010,30(25):122-129.
[11]戴珂,刘聪,李彦龙,等.并联型APF对两类非线性负载的谐波补偿特性研究[J].电工技术学报,2013,28(09):79-85.
[12]李玉,刘建功.改进型粒子群算法在有源电力滤波器优化配置中的应用[J].煤矿机电,2016,(02):6-8.
[13]雍静,王一平.低压配电系统中非线性负荷谐波诺顿模型成立条件[J].重庆大学学报,2013,36(12):36-42.
[14]雍静,王一平.低压配电系统单相非线性负荷谐波诺顿模型研究[J].中国电机工程学报,2014,34(16):2692-2698.
[15]王佳佳,周念成,王强钢,等.电网电压不平衡下串联型12脉波整流装置的频域谐波建模[J].电工技术学报,2015,30(05):69-78.
[2]易皓,卓放,詹文达,翟浩.用于并联型有源电力滤波器的谐振调节器选择性特性比较分析[J].中国电机工程学报,2014,34(30):5320-5328.
[3]张国荣,陈夏冉,颜丽花.基于隔离小生境粒子群算法的APF优化配置[J].电子测量与仪器学报,2017,31(02):208-215.
[4]唐嵩棋.APF的LCL滤波器的设计及其电流控制策略研究[D].哈尔滨工业大学,2012.
[5]侯桂兵,涂春鸣,罗安,等.微电网中APF接入位置与容量优化配置方案[J].电力自动化设备,2012,32(05):29-33.
[6]侯桂兵.微网电能质量治理装置优化配置与协同控制研究[D].湖南大学,2012.
[7]邹舒,张程柯,付永生,等.电气化铁路谐波叠加问题研究[J].电气应用,2013,32(21):68-73.
[8]梁伟,侯世英,李福,等.常见家用电器谐波特性及功率特性分析[J].现代建筑电气,2011,2(12):52-56+60.
[9]雍静,娄方桥,王一平,等.低压配电系统单相非线性负荷的谐波衰减效应研究[J].中国电机工程学报,2011,31(13):55-62.
[10]雍静,陈亮,陈双燕.台式计算机负荷的频域谐波模型及衰减特性[J].中国电机工程学报,2010,30(25):122-129.
[11]戴珂,刘聪,李彦龙,等.并联型APF对两类非线性负载的谐波补偿特性研究[J].电工技术学报,2013,28(09):79-85.
[12]李玉,刘建功.改进型粒子群算法在有源电力滤波器优化配置中的应用[J].煤矿机电,2016,(02):6-8.
[13]雍静,王一平.低压配电系统中非线性负荷谐波诺顿模型成立条件[J].重庆大学学报,2013,36(12):36-42.
[14]雍静,王一平.低压配电系统单相非线性负荷谐波诺顿模型研究[J].中国电机工程学报,2014,34(16):2692-2698.
[15]王佳佳,周念成,王强钢,等.电网电压不平衡下串联型12脉波整流装置的频域谐波建模[J].电工技术学报,2015,30(05):69-78.