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三相并网光伏发电系统的双模控制实现

三相并网光伏发电系统的双模控制实现

Realization of dual-mode control of three-phase grid-connected photovoltaic power generation system

Realization of dual-mode control of three-phase grid-connected photovoltaic power generation system

doi:
10.19389/j.cnki.1003-0506.2017.12.048
摘要:
依据三相逆变器光伏并网系统高性能与设备成本间的问题,提出了极点配置与重复控制相结合的并网控制方案,检测直流环节的电流就可以达到对光伏电池阵列的最大输出功率检测,减少了检测系统成本,增加了跟踪速度.基于加强逆变器直流电压利用率,采用了三次谐波的调制策略.采用直流升压的两级控制方法可以提高逆变器性能,能够达到电流内环对并网电流精确控制.仿真和实验结论验证了方法的正确性和有效性.
Abstract:
According to the problem of high performance and equipment cost of PV system in three-phase inverter,a grid-connected control scheme combining pole configuration and repetitive control was proposed,and the maximum output power of the PV cell array can be detected by detecting the current in the DC link Detection,reduced detection system costs,increased tracking speed.Based on the enhancement of the inverter DC voltage utilization,the third harmonic modulation strategy was adopted,and the use of DC boost two-stage control method can improve the inverter performance,to achieve the current loop on the grid current precise control.Simulation and experimental results verified the correctness and validity of the method.
作者 郭瑞峰 史丛林
Author: Guo Ruifeng Shi Conglin
作者单位 杭州凯达电力建设有限公司,浙江杭州,311100
期 刊: 能源与环保 ISTIC EI SCI PKU CSSCI
Journal: Zhongzhou Coal
年,卷(期) 2017, 39(12)
分类号 TM615
关键词: LCL滤波器 知识脉络 三相并网发电 知识脉络 极点配置 知识脉络 光伏发电系统 知识脉络
Keywords: LCL filter three-phase grid-connected power generation pole configuration photovoltaic power generation system
机标分类号 TP3 TM6
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