电网技术2011，Vol.35Issue(12)：107-111,5.
基于微分同胚映射和扩张状态观测器的高压直流非线性控制器的设计
Design of Nonlinear Controller for HVDC Power Transmission Based on Diffeomorphic Mapping and Extended State Observer
李天云 1刘智铭 1朱建华 1于海峰 1袁明哲 2党震宇1
作者信息
- 1. 东北电力大学自动化工程学院,吉林省吉林市132012
- 2. 成都电业局,四川省成都市610021
- 折叠
摘要
Abstract
To improve anti-interference ability of HVDC power transmission system and model identification accuracy, based on diffeomorphic mapping and extended state observer （ESO） a method to design a nonlinear controller for HVDC power transmission system is proposed. Firstly, using diffeomorphic mapping the nonlinear factors in the model of HVDC power transmission system are taken as inputs of the controller and the optimal pre-control variables are determined by linear optimal feedback and feedback rate of nonlinear error; then all uncertain factors are identified by ESO to implement the design of nonlinear control law. Simulation results show that the rise-time and adjusting time of control system can be reduced by applying the proposed method in current control at rectifier side and turn-off angle control at inverter side and the stability of control system can be enhanced.关键词
高压直流输电/微分同胚映射/扩张状态观测器/线性最优反馈/非线性误差反馈Key words
HVDC power transmission/diffeomorphic mapping/extended state observer （ESO）/linear optimal feedback/nonlinear state error feedback分类
信息技术与安全科学引用本文复制引用
李天云,刘智铭,朱建华,于海峰,袁明哲,党震宇..基于微分同胚映射和扩张状态观测器的高压直流非线性控制器的设计[J].电网技术,2011,35(12):107-111,5.
