Electric Power Construction

Figure/Table detail

Parameter Identification Method for Distribution Systems with a High Proportion of Distributed Renewable Energy

WEI Wei, JI Wenwen, HUANG Xu, JIN Xiaolong, HUANG Pan

Electric Power Construction, 2025, 46(5): 96-111. DOI: 10.12204/j.issn.1000-7229.2025.05.009

场景	算法	噪声程度/%	伪量测量是否作为状态变量
1	AEKF	5	是
2	AEKF	10	是
3	AEKF	15	是
4	EKF	5	是
5	EKF	10	是
6	EKF	15	是
7	AEKF	5	否
8	AEKF	10	否
9	AEKF	15	否

Table 1 Scenario Setting Situation

Other figure/table from this article

Fig. 1 Voltage fluctuation comparison chart before and after connecting distributed power sources
Fig. 2 Schematic diagram of distribution system CT installation location
Fig. 3 Distribution line model
Fig. 4 Distribution Transformer Model
Fig. 5 Distribution system topology schematic
Fig. 6 Flowchart of AEKF algorithm for parameter identification
Fig. 7 Temperature variation curve on a certain day in tianjin
Table 2 Line parameter identification index results under scenario 1
Table 3 Transformer parameter identification index results under scenario 1
Fig. 8 Comparison of e_Mean for R
Fig. 9 Comparison of e_Mean for X
Fig. 10 Comparison of e_Mean for B
Fig. 11 Comparison of e_Max for R
Fig. 12 Comparison of e_Max for X
Fig. 13 Comparison of e_Max for B
Fig. 14 Comparison of e_Var for R
Fig. 15 Comparison of e_Var for X
Fig. 16 Comparison of e_Varfor B
Table 4 Transformer parameter metrics under scenario 2— 6
Fig. 17 Time comparison
Fig. 18 Comparison of e_Mean for R under different methods
Fig. 19 Comparison of e_Mean for X under different methods
Fig. 20 Comparison of e_Mean for B under different methods
Table 5 Transformer e_Mean under scenarios 7—9
Fig. 21 Comparison of e_Mean for voltage magnitude
Fig. 22 Comparison of e_Mean for voltage angle
Fig. A1 Topology structure of a 10 kV system in Tianjin
Fig. A2 Calculation of active power P and reactive power Q with measurement error percentage

Figure/Table detail

扫码分享

扫码分享

模态框（Modal）标题

Figure/Table detail

扫码分享

扫码分享