2020-12-11T01:03:30+08:002020-11-27|

並網變流器功能拓展有助於用低成本方案實現城市配電網能效優化，多變流器協同運行是未來的發展趨勢。首先從阻抗頻率特性、功率控制特性、等效模型上分析和比較了感性阻抗和容性阻抗兩種變流器的特性，總結了各自優勢的應用方向。其後，針對實現變流器功能拓展開展關鍵控制技術研究，重點研發比例諧振控制器參數優化以改善電流跟蹤精度，實現將傳統變流器轉變為無功調控、諧波抑制和新能源並網多功能合一的新型並網系統。為進一步配合多變流器功率分配和協調控制，重點研發基於改進下垂控制的控制算法及多變流器功率分配優化算法，以實現低成本、低損耗的城市配電網多變流器協調控制。

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