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Direct Power Control Based Single-Phase AC-DC Converter Controller Design
Author(s): 
Pages: 251-256
Year: Issue:  7
Journal: Transactions of China Electrotechnical Society

Keyword:  单相AC-DC变流器 αβ坐标系 直接功率控制 二自由度PI控制;
Abstract: 将单相系统延迟90°得到αβ坐标系二相系统,并由此建立了单相变流器的数学模型。基于直接功率控制设计了单相变流器控制系统。提出电压外环使用二自由度PI控制器以提高控制系统的鲁棒性并降低系统启动过程中的超调量,对可能影响系统性能的采样电压进行了修正。最后基于PSCAD/EMTDC的仿真分析验证了方案的可行性。
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