基于无源哈密尔顿系统理论的LC滤波并网逆变器控制A Novel Control Strategy for Grid-Connected Inverters With LC Filter Based on Passive Hamiltonian Theory
曾正;杨欢;赵荣祥;宋春伟;
摘要(Abstract):
并网逆变器及其控制是分布式发电和微电网技术中的一个重要组成部分。建立了LC滤波并网逆变器的无源哈密尔顿系统数学模型,并在此基础上提出了一种新的控制策略,可以很好地满足电网对并网逆变器动态、静态性能和谐波抑制能力的要求。此外,还提出了一种基于同步旋转坐标系的无锁相环参考电流生成算法,可以克服传统锁相环锁相不准的不足。最后,利用电磁暂态综合分析程序PSCAD/EMTDC的仿真试验验证了所提方法的正确性和有效性。
关键词(KeyWords): 并网逆变器;LC滤波;无源哈密尔顿系统;无锁相环
基金项目(Foundation): 国家自然科学基金资助项目(50907060);; 中国博士后科学基金资助项目(20090451438)~~
作者(Author): 曾正;杨欢;赵荣祥;宋春伟;
Email:
DOI: 10.13335/j.1000-3673.pst.2012.04.015
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