| 引用本文: | 习伟,张哲,陈卫,张兆云,刘念.光伏逆变器短路特性分析[J].电力系统保护与控制,2015,43(7):70-75.[点击复制] |
| XI Wei,ZHANG Zhe,CHEN Wei,ZHANG Zhaoyun,LIU Nian.Research on fault characteristic of the PV inverter[J].Power System Protection and Control,2015,43(7):70-75[点击复制] |
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| 摘要: |
| 通过理论分析、故障仿真和试验等方法，系统研究了光伏逆变器的故障特性。阐述光伏逆变器的拓扑结构和双环控制原理，建立光伏发电系统的仿真模型。仿真不同短路故障时光伏逆变器的输出特征，分析影响光伏逆变器输出特征的主要因素，给出了某光伏逆变器的试验数据。研究表明，与传统同步电机电源相比，光伏电源馈出的短路电流在其基本组成、衰减速率以及幅值特征等方面均存在较大差异，将对微网保护性能带来直接影响。 |
| 关键词: 分布式发电 光伏 逆变器 短路特性 |
| DOI：10.7667/j.issn.1674-3415.2015.07.011 |
| 投稿时间：2014-05-07修订日期：2015-02-09 |
| 基金项目:自然科学基金面上项目(51177058，5127708) |
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| Research on fault characteristic of the PV inverter |
| XI Wei,ZHANG Zhe,CHEN Wei,ZHANG Zhaoyun,LIU Nian |
| (Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China;State Key Laboratory
of Advanced Electromagnetic Engineering and Technology, HUST, Wuhan 430074, China;Beijing Sifang Automation Co., Ltd., Beijing 100085, China) |
| Abstract: |
| Through theoretical analysis, simulation and experiments, the fault characteristics of PV inverter generator are mainly researched. The PV inverter topologies and double-loop control principle are described, a simulation model of PV inverter generator is established, the output characteristics after the different short circuit fault are simulated, the main factors are analyzed, and the test data of a PV inverter is given. Compared with the traditional synchronous generator, short circuit current of distributed generator is quite different in basic composition, decay, amplitude characteristics, etc. |
| Key words: DG PV inverter fault characteristic |
