面向分布式光伏的功率调控反向散射通信感知技术研究

doi:10.11896/jsjkx.250400020

计算机科学 ›› 2026, Vol. 53 ›› Issue (6A): 250400020-6.doi: 10.11896/jsjkx.250400020

面向分布式光伏的功率调控反向散射通信感知技术研究

彭琳钰¹, 王涛¹, 龙姣¹, 曹中烨², 吴以杰², 王巍²

1 贵州电网有限责任公司电力调度控制中心贵阳 550000
2 华中科技大学电子信息与通信学院武汉 430074

出版日期:2026-06-16 发布日期:2026-06-12
通讯作者: 王巍(weiwangw@hust.edu.cn)
作者简介:(pengly@gz.csg.cn)
基金资助:
国家自然科学基金(62471194);贵州电网有限责任公司科技项目(060000KC24100003)

Power Regulation Backscatter Communication Sensing System for Distributed Photovoltaic Power Generation Systems

PENG Linyu¹, WANG Tao¹, LONG Jiao¹, CAO Zhongye², WU Yijie², WANG Wei²

1 Power Dispatch Control Center,Guizhou Power Grid Co.Ltd.,Guiyang 550000,China
2 School of Electronic Information and Communications,Huazhong University of Science and Technology,Wuhan 430074,China

Published:2026-06-16 Online:2026-06-12
About author:PENG Linyu,born in 1993,postgraduate.Her main research interests include power communication and data science.
WANG Wei,born in 1988,Ph.D,professor,Ph.D supervisor,is a member of CCF(No.I5416M).His main research interests include PHY/MAC design and mobile computing in wireless systems.
Supported by:
National Natural Science Foundation of China(62471194) and Science and Technology Project of Guizhou Power Grid Co., Ltd.(060000KC24100003).

摘要/Abstract

摘要： 分布式光伏系统因其部署灵活、分布范围广阔等特点,顺应了电力系统智能化与可再生能源高效利用的发展趋势。然而,管理该系统不仅需要实时获取光伏组件的运行状态、环境参数等传感数据,还需准确定位数据采集终端以支持故障排查、资源优化和效率提升,这对终端的能耗、大规模接入通信能力以及感知定位能力提出了严苛要求。现有技术难以同时满足低功耗通信、大规模终端接入与高精度定位的协同需求,导致分布式光伏系统在实际应用中面临显著挑战。为满足该需求,提出了一种基于功率控制非正交多址接入的低功耗反向散射通信感知系统。该系统在实现过程中面临以下难点:首先,现有反向散射通信技术在功率调控精度上存在不足,难以适应分布式光伏场景中动态变化的功率分配需求;其次,空间分布差异导致功率调控有效性下降,影响系统整体性能;最后,多标签定位过程中并发信号干扰严重,制约了定位精度。针对这些难点,基于隧道二极管设计反射功率控制方案,实现了信号功率的精细调节;提出了动态功率调控策略,优化了系统整体误码率;结合混叠信号中蕴含的到达角信息与非正交多址接入的功率域特性设计多标签定位方案,实现了多标签通信与位置估计。实验结果表明,系统误码率在信噪比大于15 dB时低于0.01%,定位角度误差在信噪比大于5 dB时低于5°。

关键词: 反向散射通信, 非正交多址接入, 隧道二极管, 功率调控, 到达角估计

Abstract: Distributed photovoltaic(PV) systems,characterized by their flexible deployment and wide distribution,align with the development trends of power system intelligence and efficient utilization of renewable energy.However,managing such systems not only requires real-time acquisition of operational status and environmental parameters of PV components but also precises localization of data collection terminals to support fault diagnosis,resource optimization,and efficiency enhancement.This imposes stringent demands on terminal energy consumption,large-scale access communication capabilities,and sensing and localization abilities.Existing technologies struggle to simultaneously meet the collaborative requirements of low-power communication,large-scale terminal access,and high-precision localization,leading to significant challenges in the practical application of distributed PV systems.To address these needs,this paper proposes a low-power backscatter communication and sensing system based on power-controlled non-orthogonal multiple access(NOMA).The system faces the following challenges during implementation.Firstly,existing backscatter communication technologies lack sufficient precision in power control,making it difficult to adapt to the dynamically changing power allocation requirements in distributed PV scenarios.Secondly,spatial distribution differences reduce the effectiveness of power control,affecting overall system performance.Finally,severe concurrent signal interference during multi-tag localization limits positioning accuracy.To tackle these challenges,this paper designs a reflected power control scheme based on tunnel diodes,achieving fine-tuning of signal power;proposes a dynamic power control strategy to optimize the overall bit error rate(BER) of the system,and combines angle-of-arrival(AoA) information embedded in aliased signals with the power domain characteristics of NOMA to design a multi-tag localization scheme,enabling simultaneous multi-tag communication and position estimation.Experimental results show a BER below 0.01% at SNR>15 dB and a localization angle error under 5° at SNR>5 dB.

Key words: Backscatter communication, NOMA, Tunnel diode, Power regulation, Angle of arrival estimation

中图分类号:

TN926

彭琳钰, 王涛, 龙姣, 曹中烨, 吴以杰, 王巍. 面向分布式光伏的功率调控反向散射通信感知技术研究[J]. 计算机科学, 2026, 53(6A): 250400020-6. https://doi.org/10.11896/jsjkx.250400020

PENG Linyu, WANG Tao, LONG Jiao, CAO Zhongye, WU Yijie, WANG Wei. Power Regulation Backscatter Communication Sensing System for Distributed Photovoltaic Power Generation Systems[J]. Computer Science, 2026, 53(6A): 250400020-6. https://doi.org/10.11896/jsjkx.250400020

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面向分布式光伏的功率调控反向散射通信感知技术研究

Power Regulation Backscatter Communication Sensing System for Distributed Photovoltaic Power Generation Systems

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