基于改进的蚁群算法的配电网虚拟测量技术研究
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摘要
针对我国配电网自动化程度不高,测量装置配置不足,测量精度不高,导致在潮流计算时不能对配电网进行准确的评估问题,论文提出了一种改进的蚁群算法,用于评估配电网的风险。采用优化后的蚁群算法,利用配电网有限的数据,寻找最优功率失配量a,b的最优参数,然后再进行潮流计算,从而得出更优的评估。通过算例仿真,验证了该改进的算法在配电网测量和评估上的有效性。
Aiming at the problem that the automation of distribution network is not high,the measurement device is not well configured and the measurement accuracy is not high,which can not be used to evaluate the distribution network accurately. An improved ant colony algorithm is proposed to evaluate risk of distribution network in this paper. The optimized ant colony algorithm and the limited data of the distribution network is used to look for the optimal parameters of the optimal power mismatching a and b. And the trend is calculated,resulting in a better assessment. The effectiveness of the improved algorithm in the measurement and evaluation of distribution network is verified by numerical simulation.
Aiming at the problem that the automation of distribution network is not high,the measurement device is not well configured and the measurement accuracy is not high,which can not be used to evaluate the distribution network accurately. An improved ant colony algorithm is proposed to evaluate risk of distribution network in this paper. The optimized ant colony algorithm and the limited data of the distribution network is used to look for the optimal parameters of the optimal power mismatching a and b. And the trend is calculated,resulting in a better assessment. The effectiveness of the improved algorithm in the measurement and evaluation of distribution network is verified by numerical simulation.
引文
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[2]Zhang Fan,Cheng Carols.A modified Newton method forradial distributionsystem power flow analysis[J].IEEETrans on Power Systems,1997,12(1):389-397.
[3]李晓明,张水长,尹相根,等.非全测量信息的配电网概率潮流算法研究[J].高电压技术,2006,32(4):108-110.LI Xiaoming,ZHANG Shuichang,YIN Xianggen,et al.Study on Probabilistic Power Flow Algorithm for Distribu-tion Network with Non-Full Measurement Information[J].High Voltage Technology,2006,32(4):108-110.
[4]王雅婷,何光宇,董树锋.基于测量不确定度的配电网状态估计新方法[J].电力系统自动化,2010,34(7):40-44.WANG Yating,HE Guangyu,DONG Shufeng.A NewMethod of Distribution Network State Estimation Based onMeasurement Uncertainty[J].Power System Automa-tion,2010,34(7):40-44.
[5]李晓波,苗晓鹏,桑振华,等.基于偏置阻抗法的配电网电容电流测量新方法[J].电力系统保护与控制,2014,42(4):22-26.LI Xiaobo,MIAO Xiaopeng,SANG Zhenhua,et al.A newmethod for capacitance current measurement of distribu-tion network based on bias impedance method[J].PowerSystem Protection and Control,2014,42(4):22-26.
[6]梁魁,汪芳宗,扬力森,等.基于同步相量测量的配电网故障定位方法研究[C]//2008中国电力系统保护与控制学术研讨会论文集,2008,129-133.LIANG Kui,WANG Zongfang,YANG Lisen,et al.Re-search on Distribution Network Fault Location MethodBased on Synchronous Phasor Measurement[C]//2008China Power System Protection and Control SymposiumProceedings,2008,129-133.
[7]郑伟,王钢,覃智贤.一种智能配电网高级测量节点设计[J].低压电器,2010,14:28-31.ZHENG Wei,WANG Gang,QIN Zhixian.A high-levelmeasurement node design of intelligent distribution net-work[J].Low-voltage electrical appliances,2010,14:28-31.
[8]唐轶,王涛,罗建锋.用于消弧线圈控制的单相接地电流测量方法[J].高电压技术,2010,36(9):2242-2245.TANG Yi,WANG Tao,LUO Jianfeng.Single-phaseground current measurement method for arc suppressioncoil control[J].High Voltage Technology,2010,36(9):2242-2245.
[9]江渝,刘和平,冉立,等.连续调节消弧线圈接地系统单相接地故障谐振状态在线监测的研究[J].中国电机工程学报,2005,25(13):35-40.JIANG Yu,LIU Heping,RAN Li,et al.Study on On-lineMonitoring of Resonant State of Single-phase Earth Faultin Continuous Control of Arc-suppression Coil GroundingSystem[J].Proceeding of the CSEE,2005,25(13):35-40.
[10]董新洲,施慎行,王宾,等.新型配电线路自动化模式[J].电力系统及其自动化学报,2007,19(3):1-7.DONG Xinzhou,SHI Shenxing,WANG Bin,et al.Newpower distribution line automation mode[J].Power Sys-tem and Its Automation,2007,19(3):1-7.