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时间:2020-04-14
《基于差分和声搜索算法的输电网差异化规划-论文.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52卷第l3期电测与仪表VO1.52No.132015年7月lO日ElectricalMeasurement&InstrumentationJu1.10。2015基于差分和声搜索算法的输电网差异化规划聂宏展,赵丹,郑鹏飞,赵鹏(1.东北电力大学电气工程学院,吉林吉林132012;2.国网威海供电公司,山东威海264200)摘要:自然灾害的发生会对输电网产生严重的影响,传统的输电网规划未计及抗灾能力,使得在灾害情况下,电网大面积停电。针对抗灾型输电网规划的要求,建立了满足刚性负荷持续、可靠供电的输电网差异化规划模型。分析了和声搜索算法随着优化问题维数的增加,求解的精度和
2、收敛速率得到了明显地降低,并针对易陷入局部寻优的现象,分析其原因设计了差分和声搜索算法。算法利用和声记忆库中其他解的有利信息,保证记忆库中解空间的多样性,改进了搜索机制,从而提高了算法的搜索能力。通过巴西南部46节点算例分析验证了模型及算法的可行性,为进一步研究输电网抗灾能力打下了基础。关键词:输电网规划;抗灾;差异化设计;最小骨干网架中图分类号:TM862文献标识码:B文章编号:1001—1390(2015)13一O111—05Transmissionnetworkdiferentialplanningbasedondiferenceharmonysearchalgo
3、rithmNieHongzhan,ZhaoDan,ZhengPengfei,ZhaoPeng(.SchoolofElectricalEngineering,NortheastDianliUniversity,Jilin132012,Jilin,China.2.StateGridWeihaiPowerSupplyCompany,Weihai264200,Shandong,China)Abstract:Theoccurrenceofnaturaldisasterswouldmakeaseriousimpactonthesafeoperationofthetransmissi
4、onnetwork.Withouttakingintoaccountdisasterresilience,traditionaltransmissionnetworkwouldOccurlargeblackoutswhenitencountersnaturaldisaster.Inordertomeettherequirementsofanti-disaster,amodelforanti—disastertrans—missionnetworkdifferentiationplanning,whichmeetssustainedandreliablepowersupp
5、lytotherigidload,isestab—lished.Afterthemaindisadvantageofbeinginclinedtoprematureconvergence,lowaccuracyandconvergencerateinharmonyalgorithmarediscussed,withtheincreaseinthedimensionoptimizationproblem,harmonysearchalgorithmbasedondifferenceisproposed.Theproposedalgorithmusesbeneficiali
6、nformationoftheothersolutionsinharmonymemorytomodifythesearchmechanism,andthusmaintainsthediversityofharmonymemory,andenhancestheeffi.ciencyofsearchforcomplexfunctions.ThroughtheresultsofSouthernBrasilian46-bussystem,itprovesthecorrect.nessandeffectivenessofthealgorithmintransmissionnetw
7、orkplanning,whichprovidesthefoundationforpracticalengineeringapplications.Keywords:transmissionnetworkplanning,anti—disaster,networkdifferentialplanqing,sub—regionalminimumback—boned0引言针对如何在电网规划阶段考虑自然灾害的影响自然灾害事故的频繁发生严重威胁电网的安全稳问题,国务院批转了发改委、电监会关于加强电力系定运行,为了满足对电力系统安全、可靠、充足电力
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