The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology

ZHAO Zhiguo

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The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology

Volume 2, Issue 2

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The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology
The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology
SGCC Shandong Electric Power Company Mengyin Power Supplycompany
Vol. 2, Issue 2, Pages: 13-20(2018)
Published： 2018 ，
DOI：
Accepted：

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ZHAO ZHIGUO. (2018). The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology. Creative Economy, 2(2), 13-20..
DOI：

ZHAO ZHIGUO. (2018). The Photovoltaic Intelligent Grid-connection System Based on Module Cascade Topology. Creative Economy, 2(2), 13-20.. DOI：

摘要

Abstract

We make a deep development on automatic switching interface based on inverter step-up transformer to settle the instability of the photovoltaic system voltage. We use PLC's ant colony algorithm to ensure that the power quality of each module can meet the corresponding requirements

in order to realize the photovoltaic intelligent grid-connection. This paper adopts Level 2 DC/DC boost inverter to raise the theory of voltage from DC480V to DC3kV and then to DC10kV. Finally

it incorporated into 110kV distribution network line in two steps used DC/AC inverter on 10kV. The system of this paper shows a certain stability in practical applications

but there is still a lot of room for improvement.

关键词

Keywords

Module cascadePhotovoltaic power generationIntelligent grid connection

references

SHEN Yao, LUO An, CHEN Yandong, PENG Shuangjian.“The photovoltaic gird-connection control method based on power feed forward and the analysis of its stability," Power gird technology, 2014, (09):2449-54.TAN Xingguo, FENG Gaoming, WANG Hui, Zhang Li.“Three phase and four swich photovoltaic gird-connection inverters with active power filter," High Voltage Technology, 2014,(11):3590-96.WANG Jiuhe, MU Xiaobin, ZHANG Baile, ZHANG Zhen.“The control research of photovoltaic gird-connection inverter's maximum power transmission," Transactions of China .Electrotechnical Society, 2014, (06):49-56.ZENG Zheng, ZHAO Rongxiang, LV Zhipeng, MA Li.“The impedance remodeling and harmonic resonance restrain of the photovoltaic gird- connection inverters," Proceedings of the CSEE, 2014,(27):4547-58.

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