基于特性融合的电力负荷建模  

Characteristic Fusion Based on Electric Load Modeling

作　　者：朱建全[1] 李颖 谭伟 

机构地区：[1]华南理工大学电力学院,广东省广州市510640 [2]广东电网有限责任公司电力调度控制中心,广东省广州市510600

出　　处：《电网技术》2015年第5期1358-1364,共7页Power System Technology

基　　金：国家自然科学基金资助项目(51307064);高等学校博士学科点专项科研基金资助项目(20130172120044);广东省自然科学基金资助项目(S2013040015586);中央高校基本科研业务费资助项目(2013ZM0022)~~

摘　　要：电力负荷建模是一项重要的基础性研究,迄今为止仍是电力系统领域公认的难题。为解决此问题,提出一种新的基于特性融合的电力负荷建模方法。首先,对电力负荷的成份进行深入分析,以揭示负荷的静态特性、动态运行特性、退出特性、重启特性等基本特性。其次,将这些基本特性视为电力负荷综合特性的组成单元,利用量测信息对其进行融合以得到综合负荷模型。所提的方法兼具统计综合法与总体测辨法的优势,既能同时利用负荷的成份信息和量测信息,又能全面描述电力负荷的各种复杂特性。最后通过算例证明了所提方法的有效性。Electric load modeling is a basic and difficult work in power systems. To solve this problem, a new characteristic fusion based method of electric load modeling is proposed. ＇Firstly, the components of electric load are analyzed to reveal its basic characteristics, such as the static characteristic, dynamic operational characteristic, dynamic interruption characteristic, and restart characteristic; secondly, considering these basic characteristics are the constituent parts of the synthetic characteristic of power load, they are fused according to the measured information. The proposed method possesses the superiorities in both of the component-based modeling approach and measurement-based modeling approach, thus it can utilize the component information and the measurement information of electric load simultaneously, which is helpful for describing its complex electric characteristics. Finally, the effectiveness of the proposed method is validated by the simulation results.

关 键 词：电力系统 负荷模型 特性分析 融合 支持向量回归 

分 类 号：TM74[电气工程—电力系统及自动化]