基于内模控制的VSC-HVDC系统仿真研究  

Simulation research on VSC-HVDC system based on internal model control

作　　者：朱代祥[1] 丁明[1] 

机构地区：[1]合肥工业大学教育部光伏系统工程研究中心,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2010年第5期652-656,共5页Journal of Hefei University of Technology：Natural Science

基　　金：国家863高技术研究发展计划资助项目(2007AA05Z240);高等学校学科创新引智计划资助项目(B07032)

摘　　要：文章基于异步电动机定子电流解耦控制思想,在建立VSC-HVDC系统向无源网络供电的Matlab仿真模型基础上,对各种运行工况进行了仿真验证。研究表明:建立的VSC-HVDC系统能较好地向无源网络供电,还可以向电网吞吐无功功率,且有功、无功功率较好地实现了解耦;采用电流内模解耦控制,可有效抑制干扰及模型失配对输出的影响,并增强系统对给定信号的跟踪能力。On the basis of using the decoupling control scheme for stator current of asynchronous motor and establishing the Matlab simulation model for transmitting power to passive network via VSC-HVDC system,simulation tests are performed to verify the effectiveness of the controllers under different operating conditions.The results show that the said VSC-HVDC system can meet the need of supplying power to passive network and absorb or issue reactive power from grid net.Moreover,the active power and reactive power are decoupled preferably.By applying the current internal model decoupling control strategy,the influence of the disturbance and change of model parameters on the output can be effectively restrained.At the same time,the trailing ability of the system on the given signals can be improved.

关 键 词：新型直流输电 电压源型换流器 无源网络 解耦控制/内模控制 

分 类 号：TM721.1[电气工程—电力系统及自动化]