电网技术2017，Vol.41Issue(5)：1484-1490,7.DOI:10.13335/j.1000-3673.pst.2016.1931
节点电压为状态变量的交直流电网潮流算法
A Hybrid AC/DC Grid Power Flow Algorithm With Node Voltages as State Variables
摘要
Abstract
Recently,hybrid AC/DC grid enters rapid development stage,and correlation and coupling between AC and DC becomes increasingly stronger.In this case,problem of hybrid AC/DC grid power flow must be uniformly processed.Based on synchronous power grid,essence of hybrid AC/DC grid power flow reflects characteristics of AC grid.Embarking from this mentality,based on DC grid with voltage source converters (VSCs),with node voltages of AC and DC grids as state variables,this paper deduces power equations of converter station only related to these state variables and power flow equations.Using Newton-Raphson method,hybrid AC/DC grid power flow algorithm is realized.In this algorithm,Jacobian matrix of modified equations is the same as that in AC grid,contributing to application of sparse technology and showing sensitivity between AC and DC grids.This algorithm is suited for profound analysis and study of hybrid AC/DC grid properties.The algorithm is proved effective with simulation of a modified IEEE 57-bus AC/DC grid.关键词
电力系统/交直流电网/电压源型换流器/潮流计算/雅克比矩阵Key words
power system/AC/DC grid/voltage source converter/power flow calculation/Jacobian matrix分类
信息技术与安全科学引用本文复制引用
张心怡,韩学山,孙东磊,王孟夏,蒋哲,武乃虎..节点电压为状态变量的交直流电网潮流算法[J].电网技术,2017,41(5):1484-1490,7.基金项目
国家重点基础研究发展(973)计划(2013CB228205) （973）
国家自然科学基金项目(51477091,51407111) （51477091,51407111）
国家电网公司科技项目(SGSDDK00KJJS1600061).Project Supported by the National Basic Research Program (973Program) (2013CB228205),the National Natural Science Foundation of China (51477091,51407111),and Science and Technology Foundation of SGCC (SGSDDK00KJJS1600061). （SGSDDK00KJJS1600061）
