典型文献
An Improved Power Flow Method to Cope with Non-smooth Constraints of Integrated Energy Systems
文献摘要：
Integrated energy system applications can signifi-cantly improve energy efficiency.In this paper,we establish an integrated energy system containing heat,electricity and gas.The existing power flow(PF)calculation method applied to integrated energy systems(IESs)does not consider non-smooth constraints,such as the piecewise pipeline friction coefficient and generator buses reactive power limits,etc.Mixed integer nonlinear programming(MINLP)is conventionally used to deal with piecewise pipeline friction coefficients in gas network parts,but it is both complex and inefficient.Hence,we develop a piecewise linear function-based fitting method that can reduce the number of integer variables and enhanced the computational efficiency.In the electric network part,if the reactive power of the PV bus violates limits,it will be converted into a PQ bus,which is a non-differentiable and non-smooth constraint.Mixed complementarity problems are conventionally introduced to represent the PV-PQ buses type switching relationship and are addressed by the Newton-Raphson(NR)method.However,the above method is sensitive to the initial point.Here,we introduce a robust projected Levenberg-Marquardt(PLM)algorithm to cope with this issue.We demonstrate the advantages of our method and validate it both in a small-scale system and large-scale network test cases.
文献关键词：
中图分类号：
作者姓名：
Yuntao Ju;Jiankai Wang;Zifeng Zhang
作者机构：
College of Infor-mation and Electrical Engineering,China Agricultural University,Beijing 100083,China
文献出处：
引用格式：
[1]Yuntao Ju;Jiankai Wang;Zifeng Zhang-.An Improved Power Flow Method to Cope with Non-smooth Constraints of Integrated Energy Systems)[J].中国电机工程学会电力与能源系统学报（英文版）,2022(06):1784-1793
A类：
IESs
B类：
An,Improved,Power,Flow,Method,Cope,Non,smooth,Constraints,Integrated,Energy,Systems,energy,applications,signifi,cantly,improve,efficiency,this,paper,establish,integrated,containing,heat,electricity,gas,existing,power,flow,PF,calculation,method,applied,systems,does,not,consider,constraints,such,piecewise,pipeline,friction,generator,buses,reactive,limits,etc,Mixed,integer,nonlinear,programming,MINLP,conventionally,used,deal,coefficients,network,parts,but,both,complex,inefficient,Hence,develop,function,fitting,that,reduce,number,variables,enhanced,computational,PV,violates,will,converted,into,PQ,which,differentiable,complementarity,problems,are,introduced,represent,type,switching,relationship,addressed,by,Newton,Raphson,NR,However,above,sensitive,initial,point,Here,robust,projected,Levenberg,Marquardt,PLM,algorithm,cope,issue,We,demonstrate,advantages,our,validate,small,scale,large,test,cases
AB值：
0.60623
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