基于负荷获取和匹配潮流方法的配电网理论线损计算DISTRIBUTION SYSTEM THEORETICAL LINE LOSS CALCULATION BASED ON LOAD OBTAINING AND MATCHING POWER FLOW
陈得治,郭志忠
摘要(Abstract):
提出了一种适用于任意自动化配置的配电网理论线损计算方法。分析了传统方法的假设条件对结果的影响后,指出合理地获取负荷和基于该负荷的潮流计算是准确计算线损的关键。首先将配电网负荷和支路信息分为5种类型,通过支路信息可以将原网络分解为若干个等效网络,从而降低负荷获取的复杂性,提高获取精度;其次为无自动化量测的负荷用户设置的假设条件也最大限度地满足工程需求,最后将所有获取负荷的计算统一为期望负荷分配因子和期望负荷的计算。根据不同置信度的期望负荷为配电网匹配潮流提供负荷数据,在进一步利用冗余信息修正负荷的基础上,得到了理论线损计算结果。算例结果表明,该方法能够为运行人员提供更加精确和全面的线损信息。
关键词(KeyWords): 理论线损;负荷获取;期望负荷;匹配潮流;配电网;电力系统
基金项目(Foundation):
作者(Author): 陈得治,郭志忠
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参考文献(References):
- [1]许绍良,宋冶,苗竹梅,等.电力网电能损耗计算导则[M].北京:中国电力出版社,2000.
- [2]辛开远,杨玉华,陈富.计算配电网线损的GA与BP结合的新方法[J].中国电机工程学报,2002,22(2):79-82.XinKaiyuan,YangYuhua,ChenFu.An advanced algorithm based on combination ofGA withBP to energy loss of distribution system[J].Proceedings of theCSEE,2002,22(2):79-82.
- [3]袁慧梅,郭喜庆.用遗传算法辅助设计的人工神经网络计算配电网线损[J].电网技术,1998,22(12):17-19.YuanHuimei,GuoXiqing.Calculation of line losses in distribution systems using artificial neural network aided by genetic algorithm[J].PowerSystemTechnology,1998,22(12):17-19.
- [4]文福拴,韩祯祥.基于分群算法和人工神经网络的配电网线损计算[J].中国电机工程学报,1993,13(3):41-50.WenFushuan,HanZhenxiang.Calculation of energy losses in distribution systems based on division arithmetic andANN [J].Proceedings of theCSEE,1993,13(3):41-50.
- [5]袁慧梅,郭喜庆,于海波.中压配电网线损计算新方法[J].电力系统自动化,2002,26(11):50-53.YuanHuimei,GuoXiqing,YuHaibo.New method for calculating energy losses in medium-voltage distribution systems[J].Automation ofElectricPowerSystems,2002,26(11):50-53.
- [6]刘伟,李恒,张江,等.基于馈线区间和GIS的配电网网损计算拓扑分析方法[J].继电器,2002,30(8):10-13.LiuWei,LiHeng,ZhangJiang et al.Topology analysis method for loss calculation of distribution network based on feeder sections andGIS[J].Relay,2002,30(8):10-13.
- [7]朱发国.基于现场监测终端的配电网线损计算[J].电网技术,2001,25(5):38-40.ZhuFaguo.Loss calculation method for distribution network with information from field terminal using[J].PowerSystemTechnology,2001,25(5):38-40.
- [8]王成山,王守相.基于区间算法的配电网三相潮流计算及算例分析[J].中国电机工程学报,2002,22(3):58-62.WangChengshan,WangShouxiang.Distribution three-phase power flow based on interval algorithm and test results[J].Proceedings of theCSEE,2002,22(3):58-62.
- [9]丁心海,罗毅芳,刘巍,等.配电网线损理论计算的实用方法—改进迭代法[J].电网技术,2000,24(1):39-42.DingXinhai,LuoYifang,LiuWei et al.A new practical method for calculating line loss of distribution network-improved iteration method[J].PowerSystemTechnology,2000,24(1):39-42.
- [10]孙宏斌,张伯明,相年德.配电匹配潮流技术及其在配电网状态估计中的应用[J].电力系统自动化,1998,22(7):18-22.SunHongbin,ZhangBoming,XiangNiande.Distribution matching power flow technology and its application to state estimation for distribution systems[J].Automation ofElectricPowerSystems,1998,22(7):18-22.