| 引用本文: | 鞠平,杨杰,金宇清,李建华.电力电子接口负荷的动静综合模型[J].电力自动化设备,2023,43(10):9-14 |
| JU Ping,YANG Jie,JIN Yuqing,LI Jianhua.Composite dynamic-static model of power electronic interfaced loads[J].Electric Power Automation Equipment,2023,43(10):9-14 |
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| 摘要: |
| 近年来，越来越多的用电设备通过电力电子装置接入电网，对负荷特性产生显著影响，而传统负荷模型中缺乏对电力电子接口负荷的描述。为此，提出描述电力电子接口负荷的动静综合模型，该模型是一种非机理模型，其建立不依赖于对负荷实际工作机理的详细描述，不同类型的电力电子接口负荷可以采用相同的模型结构，这使得模型简洁，参数少，且具有较好的适应性。推导获得动静综合模型的方程，提出对模型中静态和动态参数分开确定的方法。利用典型电力电子接口负荷的实测数据获得动静综合模型，验证结果表明，所提模型能够有效描述电力电子接口负荷。 |
| 关键词: 负荷建模 电力电子接口 非机理模型 参数辨识 |
| DOI：10.16081/j.epae.202308027 |
| 分类号:TM743 |
| 基金项目:国家自然科学基金资助项目(51837004, U2066601) |
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| Composite dynamic-static model of power electronic interfaced loads |
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JU Ping1,2, YANG Jie1, JIN Yuqing1, LI Jianhua3
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1.College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China;2.College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China;3.East China Branch of State Grid Corporation of China, Shanghai 200120, China
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| Abstract: |
| In recent years, more and more electrical equipments are connected to the power grid through power electronic devices, which significantly impacts load characteristics. However, the traditional load models lack the description of power electronic interfaced loads. Therefore, a composite dynamic-static model is proposed to describe the power electronic interfaced loads. The model is a non-mechanism model, and its establishment does not rely on detailed description of the actual operation mechanism of the loads. Different types of power electronic interfaced loads can adopt the same model structure, which makes the model concise with fewer parameters and has better adaptivity. The equations of composite dynamic-static model are derived, and a method is proposed to separately determine the static and dynamic parameters in the model. The composite dynamic-static model is obtained by the measured data of typical power electronic interfaced loads, and the verification results show that the proposed model can effectively describe the power electronic interfaced loads. |
| Key words: load modeling power electronic interface non-mechanism model parameter identification |
