摘要
平衡三相交流系统中,不同次谐波电压、电流分别呈正序、负序、零序特性。针对这一特点,提出考虑谐波相序特性的谐波状态估计算法。考虑到不同次数谐波呈现不同的相序特性,单次谐波电压和电流在网络中流通分别只产生相应序的电流和电压降;故该算法根据谐波的相序特性选用相应的电力元件序参数模型,建立了考虑谐波相序特性的网络数学模型。以某13节点系统为例,采用Matlab仿真和编程验证了考虑相序特性的谐波状态估计算法的有效性。
In three-phase AC balance power system, different order harmonic voltage and current, respectively, have positive, negative and zero sequence characteristics. According to this characteristic, a harmonic state estimation algorithm considering the harmonic phase sequence characteristics is proposed. Considering different orders of harmonics have different phase sequence characteristics, single order harmonic voltage and current circulation in the network, respectively, produce only the corresponding sequence of current and voltage drop. Based on the harmonic phase sequence characteristics, corresponding power component sequence parameter model is selected, and then the network mathematical mode/ considering the harmonic phase sequence characteristics is established. The proposed algorithm is verified by using MATLAB simulation and programming with a 13-node system.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2013年第7期79-84,共6页
Power System Protection and Control
关键词
谐波状态估计
谐波相序特性
奇异值分解
序参数模型
harmonic state estimation
phase sequence characteristic of harmonic
singular value decomposition
sequenceparameters model
