[关键词]
[摘要]
LCL型滤波器相对于L型滤波器对交流侧电流中的高频谐波有更强的抑制能力,因此也越来越多地被用于逆变器中。研究了在独立工作模式和并网逆变模式间的切换过程中如何做到无扰动切换。在独立和并网逆变两种模式下分别对空载电压和并网电流直接控制。在对比传统电压电流控制情况下, 对电压电流控制进行改进。通过MATLAB/Simulink仿真平台,建立了LCL型滤波的逆变器并网模型,仿真分析证明了可行性。
[Key word]
[Abstract]
LCL type filter has better filter with respect to highfrequency harmonics in the AC current in the inhibition ability, so it is more and more used in the inverter. The switching process in independent mode and grid connected inverter mode between the switch without disturbance was researched. So in the inverter and grid independence under the two modes respectively. On load voltage and grid current direct control. In contrast to the traditional control of voltage and current conditions, the voltage and current control was improved. Through the simulation platform of MATLAB/Simulink, a model of grid connected inverter type LCL filter, simulation analysis proved the feasibility.
[中图分类号]
TM 301.2
[基金项目]
国家自然科学基金(61203224);上海市电站自动化技术重点实验室开放课题(13DZ2273800);上海市科技创新行动技术高新技术领域重点项目(14511101200);上海市重点科技攻关计划(上海市科委地方院校能力建设项目)(14110500700);上海自然科学基金(13ZR1417800)
