广义负荷模型结构研究进展

Review on Recent Progress in Generalized Load Modeling

负荷模型的准确与否对电力系统的准确仿真至关重要,但是建立反映实际负荷特性的负荷模型仍很困难,特别是对于有些系统的配网侧有电源的接入但仍以负荷为主的广义负荷。综述了广义负荷的特点,广义负荷模型的4种结构及各自特点。在概述了国内外广义负荷建模研究近况和广义负荷中的电源对电力负荷建模的影响后阐明了实测加辨识的思路建立广义负荷模型的方法。最后探讨了广义负荷模型应具有的特点。

The accuracy of the load model has great effects on power system analysis and control. Load modeling is considered to be a well-known difficult problem by now. Power sources switch into distribution net in some power systems, but power supplies by system are still defined as generalized loads. The characteristics of generalized load, generalized load model structures and characteristics are introduced respectively. The researching situation of generalized load modeling and the influence on the generalized load modeling caused by the generation in the generalized load are summarized. The method of establishing a generalized loading model by practical measurement and identification is introduced. The characteristics that should be possessed by the generalized load model are discussed.