文章摘要
多端柔性直流输电系统直流电压模糊控制策略
Research of DC Voltage Fuzzy Control Strategy for VSC-MTDC Systems
投稿时间:2017-01-05  修订日期:2017-02-12
DOI:
中文关键词: 柔性直流输电  多端柔性直流输电  直流电压控制  直流电压斜率控制  模糊控制  
英文关键词: VSC-HVDC  Multi-terminal DC transmission  DC voltage control  DC voltage droop control  Fuzzy Control
基金项目:国家自然科学基金(51577071)和广东省自然科学资金(2015 A030313202)资助
作者单位E-mail
刘志江 华南理工大学 417731859@qq.com 
摘要点击次数: 1478
全文下载次数: 581
中文摘要:
      直流电压斜率控制适用于潮流经常变化的多端柔性直流输电系统,但现有的直流电压斜率控制不能很好地兼顾不同运行工况对斜率参数的要求。本文提出一种基于模糊控制的直流电压变斜率控制策略。该控制策略应用模糊控制理论,把常规的直流电压斜率控制由原来难以整定参数的固定斜率控制变为控制参数根据运行工况变化的变斜率控制。在PSCAD/EMTDC仿真平台上搭建四端柔性直流输电系统模型,并与MATLAB互联仿真。仿真结果验证了本文设计的直流电压模糊控制策略能有效维持系统稳定运行和加快系统故障恢复。
英文摘要:
      The DC voltage droop control strategy is often used for the Voltage Source Converter Based MuIti-Terminal HVDC which power flow is changed frequently. But the existing DC voltage droop control can not meet the requirements of different operating conditions on the droop parameters. This paper presents a base on fuzzy control of DC voltage droop control strategy. By using the fuzzy control theory, the conventional DC voltage droop control strategy is converted to the variable droop control which is changed according to operating conditions. Finally, a four terminal VSC-HVDC is built and simulated in PSCAD/EMTDC which is connected with Matlab. The results of simulation demonstrate that the DC voltage fuzzy control strategy can maintain the stability of the system and accelerate system’s recovery speed effectively.
查看全文   查看/发表评论  下载PDF阅读器
关闭