基于神经网络算法的10 kV配电变压器容载比
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摘要
根据相关标准、导则及10 kV配电网的特点,分析配电变压器容载比各参数并进行适当修正。利用反向传播(backpropagation,BP)神经网络算法得到负荷同时率与主要影响因素的映射关系,得到最优负荷分散系数,并结合具体地区实例展示10 kV配电变压器容载比的确定方法。该方法充分考虑了地区负荷特点,避免以往盲目按照导则或标准全省、市一刀切执行的情况。
According to relevant standards,guide rules and characteristics of 10 kV power distribution networks,this paper analyzes parameters of capacity-load ratio of the power distribution transformer and makes suitable amendment. By using back propagation(BP) neural network algorithm,it obtains mapping relation between load coincidence factor and major influencing factors and the optimal load dispersion coefficient. Combining with regional actual examples,it shows determination method for capacity-load ratio of the 10 kV power distribution transformer which fully considers characteristics of regional load and avoids blind execution in the whole province and cities according to guide rules or standards.
According to relevant standards,guide rules and characteristics of 10 kV power distribution networks,this paper analyzes parameters of capacity-load ratio of the power distribution transformer and makes suitable amendment. By using back propagation(BP) neural network algorithm,it obtains mapping relation between load coincidence factor and major influencing factors and the optimal load dispersion coefficient. Combining with regional actual examples,it shows determination method for capacity-load ratio of the 10 kV power distribution transformer which fully considers characteristics of regional load and avoids blind execution in the whole province and cities according to guide rules or standards.
引文
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[3]张蓓,张雪莹,何奉禄.配电网设备全寿命周期利用率评价指标及提升措施[J].机电工程技术,2016,45(2):75-80.ZHANG Bei,ZHANG Xueying,HE Fenglu.Distribution Network Equipment Life-cycle Efficiency Evaluation Indices and Improvement Measures[J].Mechanical&Electrical Engineering Technology,2016,45(2):75-80.
[4]国家电网公司.城市电力网规划设计导则[S].
[5]樊亚亮,廖立基,罗真海,等.广州电网容载比合理取值的研究[J].广东电力,2005,18(7):7–10.FAN Yaliang,LIAO Liji,LUO Zhenhai et al.Research on Reasonable Value of Capacity-load Ratio in Guangzhou Power Grid[J].Guangdong Electric Power,2005,18(7):7-10.
[6]陈舒.城市电网容载比的合理配置[J].中国电业(技术版),2012(12):13–15.CHEN Shu.Rational Allocation of Capacity-load Ratio in Urban Power Grid[J].China Electric Power(Technology Edition),2012(12):13-15.
[7]赵俊光,王主丁.电网规划中对变电容载比的探讨[J].电力建设,2008,29(6):12-14.ZHAO Junguang,WANG Zhuding.Discussion on Capacity-load Ratio in Network Planning[J].Electric Power Construction,2008,29(6):12-14.
[8]张建波,罗滇生,姚建刚,等.基于经济性分析的城网变电容载比取值方法研究[J].电力系统保护与控制,2007,35(13):39–43.ZHANG Jianbo,LUO Diansheng,YAO Jiangang,et al.Research on Value of Capacity-load Ratio in Urban Power Network Planning Based on the Economical Analysis[J].Power System Protection and Control,2007,35(13):39-43.
[9]刘畅,李晓琦,刘华.电网规划中的容载比指标[J].农村电气化,2015(11):22–23.LIU Chang,LI Xiaoqi,LIU Hua.Capacity-load Ratio Indicators of Power Network Planning[J].Rural Electrification,2015(11):22-23.
[10]李欣然,刘友强,朱湘友,等.地区中压配电网容载比的研究[J].电力系统保护与控制,2006,34(7):47–50.LI Xinran,LIU Youqiang,ZHU Xiangyou,et al.Study on Capacity-load Ratio in Medium-voltage Distribution Network[J].Power System Protection and Control,2006,34(7):47-50.
[11]周晨.农村低压电网规划与设计的技术原则[J].水利电力机械,2007,29(11):154–155.Z HOU Chen.The Technical Principles of Planning and Design of LowVoltage Network in Rural Areas[J].Water Conserv ancy&Electric Power Machinery,2007,29(11):154-155.
[12]向婷婷,王主丁,张姝,等.农网改造中配电变压器容载比的研究及应用[J].供用电,2012,29(3):1–5.XIANG Tingting,WANG Zhuding,ZHANG Shu,et al.Research on the Capacity-load Ratio for Distribution Transformer and Application in Rural Network Reform[J].Distribution&Utilization,2012,29(3):1-5.
[13]刘璐洁,朱兰,符杨.基于因素映射的最大负荷同时率预测方法[C]//中国高等学校电力系统及其自动化专业学术年会.北京:中国农业大学,2008.
[14]唐友灼.试论变压器容量应按年耗电能最小的原则确定[J].变压器,1984(12):13–16.TANG Youzhuo.A Preliminary Comment on the Determination of Transformer Capacity by the Principles of Annual Electric Energy Minimized Loss[J].Transformer,1984(12):13-16.