10.5281/zenodo.1287279
https://zenodo.org/records/1287279
oai:zenodo.org:1287279
Zhu, Yue
Yue
Zhu
Zhejiang University
Wu, Jiande
Jiande
Wu
0000-0003-2330-6048
Zhejiang University
Wang, Ruichi
Ruichi
Wang
Zhejiang University
Lin, Zhengyu
Zhengyu
Lin
0000-0001-7733-2431
Aston University
He, Xiangning
Xiangning
He
Zhejiang University
Embedding Power Line Communication in Photovoltaic Optimizer by Modulating Data in Power Control Loop
Zenodo
2018
Photovoltaic (PV) system, Power line communication, DC power optimizer
2018-05-24
10.5281/zenodo.1287278
https://zenodo.org/communities/rdc2mt
https://zenodo.org/communities/eu
Creative Commons Attribution 4.0 International
In Photovoltaic (PV) system, dc-dc power op-timizer (DCPO) is an option to maximize output power. At the same time, data links among DCPOs are often required for system monitoring and controlling. This paper pro-poses a novel power line communication (PLC) method for the DCPOs, in which the data of a DCPO is modulated into the control loop of power converter, and then transmitted through the series-connected dc power line to other DCPOs. In the process of communication, differential phase shift keying (DPSK) modulation and discrete Fourier transformation (DFT) demodulation are employed. To ana-lyze the quality of communication, the communication model of the system is built, based on small-signal model. Furthermore, the noises of the system, including switch-ing, maximum power point tracking (MPPT) and additive white Gaussian noise (AWGN), are discussed and meas-ured to evaluate the signal-to-noise ratio (SNR). At last, an experimental system including 6 DCPOs is established and tested, which verifies the feasibility and effectiveness of the proposed method.
European Commission
10.13039/501100000780
734796
Research, Demonstration, and Commercialisation of DC Microgrid Technologies