基于CSS调制的低压电力线通信系统建模与分析

谢智超; 董佳鑫; 李天昊

doi:10.19783/j.cnki.pspc.260308

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基于CSS调制的低压电力线通信系统建模与分析

工程应用 | 更新时间：2026-09-28

- 基于CSS调制的低压电力线通信系统建模与分析
- Modeling and analysis of low-voltage powerline communication systems based on CSS modulation
- 电力系统保护与控制 2026年54卷第19期
- 作者机构：
  
  辽宁工程技术大学电气与控制工程学院,辽宁,葫芦岛,125105
- 作者简介：
- 基金信息：
- DOI：10.19783/j.cnki.pspc.260308
  中图分类号：
- 纸质出版：2026
- 稿件说明：
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谢智超, 董佳鑫, 李天昊. 基于CSS调制的低压电力线通信系统建模与分析[J]. 电力系统保护与控制, 2026,54(19).

XIE Zhichao, DONG Jiaxin, LI Tianhao. Modeling and analysis of low-voltage powerline communication systems based on CSS modulation[J]. Power System Protection and Control, 2026, 54(19).
谢智超, 董佳鑫, 李天昊. 基于CSS调制的低压电力线通信系统建模与分析[J]. 电力系统保护与控制, 2026,54(19). DOI： 10.19783/j.cnki.pspc.260308.

XIE Zhichao, DONG Jiaxin, LI Tianhao. Modeling and analysis of low-voltage powerline communication systems based on CSS modulation[J]. Power System Protection and Control, 2026, 54(19). DOI： 10.19783/j.cnki.pspc.260308.

摘要

针对高速电力线载波(high-speed power line communications

HPLC)系统中正交频分复用(orthogonal frequency division multiplexing

OFDM)技术在光伏监控场景下通信可靠性余量不足的问题，提出一种基于啁啾扩频(chirp spread spectrum

CSS)调制的电力线载波通信方案。首先，阐述了CSS调制解调原理。其次，基于光伏场站地埋线长距离传输特性，构建了电力线频率选择性衰落信道及Middleton Class A噪声模型。最后，对比了CSS与OFDM在上述模型下的通信性能。实验结果表明，得益于扩频增益，CSS的解调门限相较OFDM降低35 dB，显著提升系统可靠性余量。同时，其恒包络特性有效降低峰值平均功率比，使系统在低发射功率下仍保持优异的抗噪鲁棒性。综上，CSS调制方案能有效克服光伏监控系统中严峻的信道环境、剧烈脉冲噪声及功耗受限等多重约束，为复杂电网环境下感知节点的高可靠通信提供了一种有效技术途径。

Abstract

To address the insufficient reliability margin of orthogonal frequency division multiplexing (OFDM) in high-speed power line communications (HPLC) for photovoltaic monitoring

this paper proposes a chirp spread spectrum (CSS)-based power line communication scheme. The CSS modulation and demodulation principle is first presented. Considering the transmission characteristics of long-distance underground cables in photovoltaic stations

a frequency- selective fading channel and a Middleton Class A noise model are constructed. The communication performances of CSS and OFDM are then compared. Experimental results show that CSS achieves a 35 dB lower demodulation threshold than that of OFDM due to its spreading gain

thereby significantly improving the reliability margin. Meanwhile

its constant envelope property reduces the peak-to-average power ratio

ensuring excellent anti-noise robustness at low transmit power. The proposed CSS scheme effectively overcomes constraints including harsh channels

severe impulsive noise

and power limitations

offering an effective solution for reliable sensing node communication in complex power grid environments.

关键词

Keywords

references

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SHUKLA A, DAHIYA R. 8-PSK power line communication analysis and modeling for renewable smart grids[C] // 2015 International Conference on Signal Processing and Communication (ICSC), March 16-18, 2015, Noida, India: 4-9.

HAN J, LEE I, KIM S H. User-friendly monitoring system for residential PV system based on low-cost power line communication[J]. IEEE Transactions on Consumer Electronics, 2015, 61(2): 175-180.

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PASOLINI G. On the LoRa chirp spread spectrum modulation: signal properties and their impact on transmitter and receiver architectures[J]. IEEE Transactions on Wireless Communications, 2022, 21(1): 357-369.

NGUYEN T, NGUYEN H, BARTON R, GROSSETETE P. Efficient design of chirp spread spectrum modulation for low-power wide-area networks[J]. IEEE Internet of Things Journal, 2019, 6(6): 9503-9515.

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