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时间:2020-03-28
《基于改进细菌群体趋药性算法的无功优化.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第39卷第8期电力系统保护与控制Vb1.39NO.82011年4月l6日PowerSystemProtectionandControlAp~16,2011基于改进细菌群体趋药性算法的无功优化李秀卿,孙守鑫,张超1,刘文祥,徐剑锋,倪晶(1.东北电力大学电气工程学院,吉林吉林132012;2.鹤岗电业局,黑龙江鹤岗154200;3.黑龙江省电力科学研究院系统室,黑龙江哈尔滨150036;4.东北农业大学工程学院电气工程系,黑龙江哈尔滨150030)摘要:基于细菌群体趋药性(Bacteria1ColonyChemotaxi
2、S,BCC)算法提出变速菌群趋药性(GearBacterialColonyChemotaxiS,GBCC)算法,将其应用于电力系统无功优化。GBCC算法引入带有权重系数的变速公式,使得GBCC算法前期能够较快地收敛于几个最优解的周围,后期能够在最优解周围进行细致搜索,克服了BCC算法易于收敛于局部最优解的缺点。建立基于GBCC算法的无功优化数学模型,给出GBCC算法的具体步骤。通过对IEEE30节点算例的测试,得到GBCC算法在无功优化问题上的收敛速度和优化效果。关键词:菌群趋药性算法;变速茵群趋药性算法;无功优化;变
3、速思想;收敛性;收敛速度ReactivepoweroptimizationbasedontheimprovedbacterialcolonychemotaxisalgorithmLIXiu.qing,SUNShou.xin,ZHANGChao,LIUWen.xiang,XUJian.feng。,NIJing4(1.CollegeofElectricalEngineering,NortheastDianliUniversity,Jilin132012,China;2.HegangPowerSupplyCompany,He
4、gang154200,China;3.Elec~icPowerResearchInstituteSystemRoomofHeilongjiangProvince,Harbin150036,China;4.ElectricalEngineeringofEngineeringCollegeofNortheastAgriculturalUniversity,Harbin150030,China)Abstract:AGearBacterialColonyChemotaxis(GBCC)algorithmispresentedb
5、asedonBacterialColonyChemotaxisalgorithmtodealwithreactivepoweroptimizationprobleminpowersystem.GBCCalgorithmintroducesagearformulawithaweightcoeficient,whichmakesGBCCalgorithmconvergearoundafewoftheoptimalsolutionsquicklyatearlystageandlatersearchcarefullyaroun
6、dtheoptimalsolutions.TheBCCalgorithm’Sshortcomingofeasilyconvergingtolocaloptimalsolutionisovercome.ThispaperestablishesamathematicalmodelofreactivepoweroptimizationwhichisbasedonGBCCalgorithmandgivesspecificstepsofGBCCalgorithm.ThroughthetestofIEEE-30busexample
7、s,theconvergencespeedandoptimizationresultsofGBCCalgorithmindealingwithreactivepoweroptimizationproblemareobtained.Keywords:bacterialcolonychemotaxisalgorithm;gearbacterialcolonychemotaxisalgorithm;reactivepoweroptimization;changing—speedthought;convergency;conv
8、ergencyspeed中图分类号:TM71文献标识码:A文章编号:1674—3415(2011)08—0056—04统无功优化上,如蚁群算法I】】、遗传算法[2l、粒子0引言群算法【34]、菌群趋药性算法(BCC)[5-s]。但这些电力系统无功优化是指从电力系统经济优化运算法都存在一定的局限性,在实际的应用中得不到行的角度,调整
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