考虑直流系统控制方式的多馈入交互作用因子实用计算方法  

Practical Calculation Method for Multi-Infeed Interaction Factor Considering HVDC System Control Modes

作　　者：夏成军[1] 王真 杜兆斌[1] 

机构地区：[1]华南理工大学电力学院,广东省广州市510640

出　　处：《电网技术》2017年第11期3532-3538,共7页Power System Technology

基　　金：国家自然科学基金资助项目(51577071)~~

摘　　要：针对现有MIIF计算方法分析效率低的问题,基于节点阻抗矩阵对系统进行静态等值,并在此基础上对小扰动下不同换流母线电压变化进行研究,得到了考虑直流控制方式的MIIF求解方程。基于此方程,提出简化条件,得到了MIIF的实用计算方法。该方法以简单解析表达式的形式给出,是对计算MIIF的等值阻抗比法的改进,体现了包含直流系统控制方式在内的MIIF的主要影响因素,可以方便地对MIIF进行计算和分析。最后,分别在简单系统和大系统中验证了所提方法的正确性和实用性。Aiming at the problem of low analysis efficiency in multi-infeed interaction factor（MIIF） calculation,this paper conducts a research on voltage variation of different buses under small disturbances with static equivalence using node impedance matrix.Equation for MIIF considering HVDC control mode is obtained.Based on this equation and simplified condition,this paper sets up a practical MIIF calculation method.This method is given in form of simple analytic expression,an improvement of equivalent impedance ratio method of MIIF.It reflects main influencing factors of MIIF including HVDC system control mode,and can calculate and analyze MIIF easily.Finally,correctness and practicability of the method are verified in simple systems and large systems respectively.

关 键 词：多馈入直流系统 多馈入交互作用因子 直流控制方式 等值阻抗 

分 类 号：TM721[电气工程—电力系统及自动化]