基于谐波模态分析的交直流混合配电网分布式谐波治理  

Distributed Harmonic Control of AC/DC Hybrid Distribution Network Based on Harmonic Modal Analysis

作　　者：程昆 CHENG Kun(Zhejiang University,Hangzhou 310014,China)

机构地区：[1]浙江大学,浙江杭州310014

出　　处：《电工技术》2023年第1期1-3,共3页Electric Engineering

摘　　要：为解决交直流混合配电网中的谐波分析及治理问题,提出了一种基于谐波模态分析方法对交直流混合配电网谐波进行分布式治理的方案。通过谐波模态分析得到影响配电网节点谐波谐振的关键频率及不同节点对谐振的参与程度。以此为基础进行谐波治理分区,结合一致性算法提出分布控制的治理方法。最后以IEEE 33节点拓展交直流混合配电网络为仿真算例,分析比较不同污染场景下不同谐波治理方案的治理效果,得出基于谐波模态分析方法的交直流混合配电网分布式治理方案在针对污染程度不均场景时的电压畸变更符合实际节点污染程度,进而验证所提方法对解决交直流混合配电网谐波污染的可行性与有效性。In order to solve the problem of harmonic analysis and control in AC/DC distribution network,a distributed harmonic control scheme for AC/DC hybrid distribution network based on harmonic modal analysis method is proposed.Through the harmonic modal analysis,the key frequencies affecting the harmonic resonance of the distribution network nodes and the degree of participation of different nodes in the resonance are obtained.Based on this,the harmonic governance partition is carried out,and the governance method of distributed control is carried out in combination with the consensus algorithm.Finally,the IEEE 33 bus expanded AC/DC hybrid distribution network is taken as a simulation example to analyze and compare the governance effects of different harmonic governance schemes under different pollution scenarios.It is concluded that the distributed governance scheme of AC/DC hybrid distribution network based on harmonic mode analysis method has a voltage distortion in the scenario of uneven pollution degree,which is consistent with the actual node pollution degree.Furthermore,the feasibility and effectiveness of the proposed method for solving harmonic pollution in AC/DC hybrid distribution network are verified.

关 键 词：谐波模态分析 交直流混合配电网 统一节点导纳矩阵 分布式治理 一致性算法 

分 类 号：TM76[电气工程—电力系统及自动化]