摘要
水轮机调速系统在保证水力发电工作效率和电能质量的方面发挥着重要的作用,然而其参数的不确定性会对其控制效果造成一定的影响。本文针对水轮机组常见的水启动时间常数、发电机阻尼系数等四种不确定性参数进行了水轮机组调速系统的建模,并使用针对不确定性的μ-综合设计方法为该模型进行了调速器的设计。在MATLAB扰的仿真实验,并与传统的PID控制器在控制效果上进行了对比。仿真结果表明μ-综合调速器在调节时间、超调抑制、抗干扰等方面相较于PID控制器均有明显优势,其拥有更较好的鲁棒性,且能较好的完成调速工作。
The turbine governing system plays an important role in ensuring the efficiency of hydroelectric power generation and power quality.However,the uncertainty of its parameters will have a certain impact on its control effect.In this paper,the turbine governing system is modeled by four uncertain parameters such as water start time constant and generator damping coefficient,and the μ-synthesis design method for uncertainty is used for the design of this governor system.The simulation experiment of step response and load disturbance was carried out in MATLAB.And compared with the traditional PID controller.The results show that the μ-synthesis governor has obvious advantages in terms of adjustment time,overshoot suppression and anti-interference compared with PID controllers.The μ-synthesis governor has better robustness and can complete the speed regulation work better.
作者
胡一鸣
王炜
HU Yi-ming;WANG Wei(Hubei Provincial Key Laboratory of Operation and Control of Cascade Hydropower Stations(Three GorgesUniversity),Yichang 443002,China)
出处
《电子设计工程》
2019年第8期81-84,89,共5页
Electronic Design Engineering
基金
湖北省技术创新专项(重点项目)(2017AAA132)
