三相光伏并网与有源滤波的统一控制仿真研究  

Unified Control Simulation for Three-phase Photovoltaic Grid-connected and APF

作　　者：黄辉[1] 黄玉水[1] 王小明[2] 周明建[1] 

机构地区：[1]南昌大学信息工程学院,江西南昌330031 [2]南昌大学环境与化学工程学院,江西南昌330031

出　　处：《电气传动》2014年第10期27-30,共4页Electric Drive

基　　金：国家自然科学基金资助课题(61262049)

摘　　要：为了实现光伏并网发电,同时补偿电网中的谐波与无功电流,提出了三相光伏并网发电与有源滤波统一控制的方案。针对传统的p,q法检测谐波与无功电流存在的缺陷,提出了运用ip,iq法来实现谐波与无功电流的检测,与光伏并网有功指令电流合成后得到实现谐波补偿和光伏并网发电的合成指令电流信号,运算速度较快,能够实时、准确地完成统一控制指令电流合成。在控制策略上采用了空间矢量控制法实现对电流跟踪控制,对低频通断控制效果较好,有效降低了系统的开关损耗。最后通过仿真实验,验证了统一控制系统实施的可行性与有效性,为今后该项技术的实用推广提供了指导。In order to compensate harmonic and reactive current in the power grid,at the same time implement PVgrid power generation,the three phase photovoltaic grid-connected power generation with the unity of the active filtercontrol concept was proposed.For the insufficient of traditional p,q method to detect the harmonic and reactive currentdefects,the concept through using the ip,iq method was proposed.With photovoltaic active command current synthesis,harmonic compensation and photovoltaic power generation command current synthesis signal were achieved,it has agood computing speed,real-time,accurate completion of a unified control command current synthesis.Secondly,thecurrent tracking control was realized by using the SVPWM method,achieved good results on the low-frequency on-offcontrol,and reduced the system switching losses effectively.Finally,based on the results of the simulation,it provesthat the unified control system is correctness and effectiveness,for the future it can provide practical guidance andpromotion of the technology.

关 键 词：光伏并网发电 有源电力滤波 空间矢量控制 谐波及无功检测 仿真 

分 类 号：TN713[电子电信—电路与系统]