摘要
针对目前电网不断增长的调频需求,充分考虑了机组调速器死区和输出功率限制两个非线性环节,设计了一种模糊自整定PID控制的AGC,并在Matlab/simulink环境下建模仿真.结果表明,对AGC中PID控制器改进后,无论是在应对阶跃负荷扰动还是连续负荷扰动,系统频率超调量、频率调节时间、互联电网之间的联络线交换功率偏差最大值和功率振荡时间都明显减小,达到了预期调频控制效果.
Aiming at the increasing demand of FM in the current power grid,considering the two nonlinear links of deadline and output power limit of the governor.Designed and simulated a fuzzy self-tuning PID control AGC inMatlab/simulink environment.The results show that for the improvement of the PID controller in the AGC,whether in response to the step load disturbance or the continuous load disturbance,the system frequency overshoot,the frequency adjustment time,the interconnection power line between the switching line power deviation maximum and power oscillation time are significantly reduced,to achieve the desired FM control effect.
作者
蒋世雨
张雪萍
李裕
黄兆波
贺少鹏
JIANG Shiyu;ZHANG Xueping;LI Yu;HUANG Zhaobo;HE Shaopeng(College of Mechanical and Electrical Engineering,Yunnan Agriculture University,Kunming 650201,China)
出处
《河南科学》
2018年第2期186-192,共7页
Henan Science
基金
云南省梯级水电站监控系统的研究与分析(KX141363)
云南省教育厅科学研究基金项目(2015Y195)
