年珩;於妮飒;曾嵘;

• 1:浙江大学电气工程学院

摘要(Abstract)：

在推导不平衡电网电压下并网逆变器数学模型和瞬时有功、无功功率数学模型的基础上,提出了实现三相电流平衡、有功功率或无功功率无波动为控制目标的控制策略,讨论了不同控制目标下并网逆变器正序和负序电流指令计算原则。为实现正序和负序电流的准确控制,设计了在两相静止坐标系下的预测电流控制方案,以消除电流采样延时和正负序分解导致系统运行性能下降的影响。最后搭建了3 kVA并网逆变器的试验系统,试验结果验证了理论分析的正确性以及预测电流控制方案的有效性。

关键词(KeyWords)： 不平衡电网电压;并网逆变器;瞬时有功和无功功率;预测电流控制

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51277159);; 国家863高技术基金项目(2011AA050204)~~

作者(Author): 年珩;於妮飒;曾嵘;

Email:

DOI: 10.13335/j.1000-3673.pst.2013.05.015

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