配电网可靠性评估与优化系统重构算法

doi:10.11959/j.issn.1000-0801.2017344

Abstract

Abstract:

Based on the research of the reliability of distribution network and the reconstruction of network,a new method was put forward to reconstruct the power grid reliability.Firstly,the evaluation index system was proposed,which included the active network LOSS (LOSS),lack of system power supply (ENS) and the average power supply availability (ASAI).A multi-objective model of distribution network was constructed by normalization,and the multi-objective function was transformed into a new single objective function by using the judgment matrix method,which realized fast calculation of power distribution network reconstruction and optimization.Through IEEE69 example verification,the optimization algorithm can obtain the global optimal solution and reduce the computational time at the same time,effectively solve the problem of the reconstruction of the complex network optimization.

Key words: reliability assessment, grid reconstruction, active network loss

CLC Number:

TN929

Zhibin ZANG,Peihao ZHENG,Benhai WEI,Zaipei ZHAI,Shengguo MA. Algorithm of grid reliability assessment and reconstruction optimization system[J]. Telecommunications Science, 2017, 33(12): 99-106.

Figures/Tables 7

References 23

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类型	操作时间/h	修复小时数/h	故障次数/（次·年^-1）
线路	6	6	0.068
联络开关	1	0	0
分段开关	1	0	0
变压器	0	11	0.016

类别情况	有功网损/kW	连枝号
初始网络	191.88	67-68-69-70-71
考虑可靠性	102.32	12-20-45-54-69
忽略可靠性	101.92	12-20-45-51-69

情况	ASAI		ENS		有功网损/kW		归一化函数值
情况	实测值	满意度	实测值	满意度	实测值	满意度	归一化函数值
考虑可靠性	0.993 1	0.68	6.843 1	0.60	102.63	0.63	0.632 1
忽略可靠性	0.988 9	0	7.621 3	0.51	101.82	0.65	0.528 4

类别情况	有功网损/kW	连枝号
新型算法	14.62	12-20-45-54-69
直接计算法	39.21	12-20-45-51-69

情况	有功网损降幅						直接加入
情况	1%	2%	3%	6%	8%	10%	直接加入
迭代次数/次	20	18	14	12	12	12	12
计算时间/s	40.01	17.21	15.12	27.21	38.32	38.71	39.33

Algorithm of grid reliability assessment and reconstruction optimization system

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