摘要
微型燃气轮机是一个复杂的热能动力系统,它的不确定性与非线性特性使得难以对其实现高精度控制,为了实现对微型燃气轮机的稳定控制,充分发挥微型燃气轮机在分布式发电中的优越性,引入自抗扰控制器,以转速为输入设计扩张观测器,利用前馈环节予以补偿,同时通过非线性组合抑制转速偏差,实现整个微型燃气轮机控制的优化。论文详细介绍了微型燃气轮机的模型及ADRC控制策略,通过负荷波动仿真及鲁棒性仿真来研究自抗扰控制器在提高微型燃气轮机系统稳定性上的优势。仿真结果表明,基于自抗扰控制器的微型燃气轮机表现出良好的动态性能,具有较强的鲁棒性能。
The microturbine is a complex thermal dynamic model. It is impossible to achieve accurate control because of its uncertainty and nonlinearity. In order to realize its steady control and fully exhibit its advantages among the distributed generation, the auto disturbance rejection control is introduced. Based on the input of rotational speed, extended-state observer is established. Also the controller uses the feedback to compensate and forms nonlinear algorithms to restrain state errors, which leads to optimize the microturbine＇s control. The paper presents the micro-turbine and the control strategy of ADRC in detail. Researches on how the ADRC improve the stability of the micro-turbine system are done via load disturbance and robust simulation. Simulation results show that the controller possesses good dynamic performance and stronger robustness.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2009年第13期7-12,31,共7页
Power System Protection and Control
基金
国家自然科学基金项目(50807016)
广东省自然科学基金项目(06300091)~~
关键词
微型燃气轮机
自抗扰控制
建模
仿真研究
microturbine
auto disturbance rejection control
modeling
simulation research
