电力系统自动化Issue(4)：128-135,8.DOI:10.7500/AEPS20150428006
计及N-1约束的多维空间断面热稳定安全域边界快速计算
Rapid Calculation of Sectional Thermal Security Region Under Constraint of N -1 in Multi-dimension Space
摘要
Abstract
The security region of power system can be shown with greater accuracy in multi-dimensional space since the distribution of power flow is complex in interconnected power grid and the factors that could have an influence on the maximum transfer power of a cross section are various,which shows the multi-dimensional character.On this basis,a rapid algorithm to determine the cross sectional thermal security region under the condition of the security N - 1 criterion in multi-dimensional space is proposed.According to the calculation of power transfer distribution factor (PTDF) that reflects the influence of generator to transmission lines,the numerical relationship between generator and cross section limit of thermal stability with single constraint is analyzed.Furthermore,a rapid comprehensive algorithm of cross section thermal security region is proposed using the advantages of peak selection strategy,which is capable of seeking all the limit states of thermal stability in all parameter space as well as obtaining the piecewise linear approximation expression for the boundary of thermal security region by combining both advantages of numerical analysis and simulation and accurately calculating the operation boundary in control parameter space.So far,the proposed method has been applied in the operation mode analysis of a power grid in southern China.关键词
热稳定安全域/多维空间/多约束/分段线性近似Key words
thermal security region/multi-dimensional space/varieties of constraints/piecewise linear approximation引用本文复制引用
赵金利,张继楠,贾宏杰,黄河,李鹏,余贻鑫..计及N-1约束的多维空间断面热稳定安全域边界快速计算[J].电力系统自动化,2016,(4):128-135,8.基金项目
高等学校博士学科点专项科研基金(20120032130008) （20120032130008）
国家自然科学基金资助项目(51307116) （51307116）
南方电网科技项目(K-ZD2012-006)。This work is supported by Specialized Research Fund for the Doctoral Program of Higher Education (SRFDP) of China (No.20120032130008),National Natural Science Foundation of China (No.51307116) and China Southern Power Grid Company Limited(No.K-ZD2012-006) （K-ZD2012-006）
