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BP-LMS-based BDS-3 power system positioning method

2023-01-30

【论文推荐】广东电网电力调度控制中心赵瑞锋等：基于BP-LMS的北斗三电力系统定位方法

原创英文期刊编辑部全球能源互联网期刊 2023-01-30 08:00

摘要

北斗三号卫星导航系统为电力系统提供全域高精度定位服务，保障电力系统安全稳定运行。但北斗三号电力系统定位面临电磁干扰复杂、误差消除不完全等挑战。针对北斗三号全域高精度电力系统定位，提出了一种基于反向传播神经网络改进的最小均方自适应滤波方法(BP- LMS)，利用损失函数更新BP隐层权值，并计算伪补偿范围，消除电磁干扰的影响，提高电力系统定位精度。仿真结果表明，BP-LMS在定位精度和消除误差方面具有较好的性能。与LMS和归一化最小均方(NLMS)相比，BP-LMS的滤波误差分别降低了57.14%和51.38%。

BP-LMS-based BDS-3 power system positioning method

基于BP-LMS的北斗三电力系统定位方法

Ruifeng Zhao¹, Jiangang Lu¹, Wenxin Guo¹, Wenjie Zheng¹, Shiming Li¹

(1.Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center, Guangzhou 510000, P. R. China)

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BP-LMS-based BDS-3 Power System Positioning Method

Abstract

The BeiDou-3 navigation satellite system (BDS-3) provides a full-domain high-precision positioning service for the power system to ensure safe and stable operation. However, BDS-3 power system positioning faces certain challenges, such as complex electromagnetic interference and incomplete error elimination. Herein, a back propagation neural network- improved least mean square (BP-LMS) adaptive filtering method is proposed for the BDS-3 full-domain and high-precision power system positioning, which utilizes the loss function to update the weight of the BP hidden layer, computes the pseudo compensation range, and eliminates the impact of electromagnetic interference to enhance the accuracy of power system positioning. Simulation results confirm the superior performance of BP-LMS in positioning accuracy and error elimination. Compared with LMS and normalized least mean square (NLMS), the filtering error of the proposed BP-LMS adaptive filtering method is decreased by 57.14% and 51.38%, respectively.

Keywords

BDS-3; BP-LMS; Error elimination; Full-domain and high-precision positioning; Power system.

Fig.1 Schematic of pseudo range positioning based on BDS-3

Fig.2 Schematic of adaptive filtering

Fig.3 Flowchart of the BP-LMS adaptive filtering-based error elimination method

Fig.4 BP-LMS adaptive filtering-based error elimination for BDS-3 power system positioning

Fig.5 Pseudometric comparison of the BDS-3 positioning and navigation system before and after filtering

Fig.6 Standard deviation in X, Y and Z axes

Fig.7 Positioning error comparison

Fig.8 Positioning deviation comparison

Fig.9 Filtering error versus the number of iterations

本文引文信息

Zhao RF, Lu JG, Guo WX, et al. (2022) BP-LMS-based BDS-3 power system positioning method. Global Energy Interconnection, 5(6): 666-674

赵瑞锋，卢建刚，郭文鑫等 (2022) 基于BP-LMS的北斗三电力系统定位方法. 全球能源互联网（英文）, 5(6): 666-674

Biographies

Ruifeng Zhao

Ruifeng Zhao received the Ph.D. degree from Chongqing University, Chongqing, China in 2013. Currently, he is a senior engineer in Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center. His research interests include operation and control and optimization techniques in power systems, distribution network automation, network information security of power systems.

Jiangang Lu

Jiangang Lu received the M.S. degree from Chongqing University, Chongqing, China in 1996. Currently, he is a professor-level senior engineer in Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center. His research interests include operation and control and optimization techniques in power systems, distribution network automation, network information security of power systems.

Wenxin Guo

Wenxin Guo received the M.S. degree from South China University of Technology, Guangzhou, China in 2010. Currently, he is a senior engineer in Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center. His research interest includes dispatching automation of power grid.

Wenjie Zheng

Wenjie Zheng received the Ph.D. degree from South China University of Technology, Guangzhou, China in 2010. He is working in Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center. His research interests include power spot market, renewable energy, automatic generation control (AGC), etc.

Shiming Li

Shiming Li received the M.S. degree from Chongqing University, Chongqing, China in 2011. He is working in Guangdong Power Grid Co., Ltd. Power Dispatching and Control Center. His research interests include dispatching automation operation management, t e c hni c a l m a na ge m e nt , profe ssi ona l management, etc.

编辑：王彦博

审核：王伟

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