摘要
水轮发电机运行过程中受到水头变化、励磁系统等复杂因素的影响,难以优化补偿控制的系数,导致水轮发电机的有功功率波动较大,无法实现控制平衡。为此,提出一种水轮发电机有功功率自抗扰闭环控制方法。根据水轮发电机的发电情况设计控电结构,分析水轮发电机的扩张状态,制定实时控制律,输出扩张状态下水轮发电机的实时有功功率;依据实时有功功率,按照水轮发电机的转动速度,预设期望的转矩惯量标准;设计补偿控制结构,优化自抗扰闭环比例放大系数和微分放大系数,使用组合补偿的方式调节有功功率的平衡,实现自抗扰闭环控制目标。实验结果表明:经过所提方法自抗扰闭环控制后,扩张跟踪区段的有功功率基本维持在45~55 kW,且波动整体处于一致的状态,自抗扰能力较强。
During the operation of a hydroelectric generator,complex factors such as changes in water head and excitation system make it difficult to optimize the compensation control coefficients,resulting in significant fluctuations in the active power of the generator and the inability to achieve control balance.Therefore,an active power active disturbance rejection closed-loop control method for hydroelectric generators proposed.The control structure was designed based on the power generation situation of the hydroelectric generator.The expansion state of the hydroelectric generator was described,real-time control laws were formulated,and the real-time active power of the hydroelectric generator in the expansion state was output.The expected torque inertia standard was preset based on real-time active power and the rotational speed of the hydroelectric generator.A compensation control structure was designed,the proportional amplification factor and differential amplification factor of the active disturbance rejection closed-loop were optimized,and a combination compensation method was used to adjust the balance of active power,so that the goal of active disturbance rejection closed-loop control was achieved.The experimental results showed that after applying the proposed method,the active power of the extended tracking section is basically maintained between 45-55 kW,and the overall fluctuation is in a consistent state,indicating a stronger active disturbance rejection ability.
作者
姬阳
侯琳琳
宋博
JI Yang;HOU Linlin;SONG Bo(Henan Province Hydrological and Water Resources Center,Zhengzhou 450000 China)
出处
《国外电子测量技术》
2025年第3期159-164,共6页
Foreign Electronic Measurement Technology
关键词
水轮发电机
有功功率
自抗扰
闭环控制
控制方法
hydroelectric generator
active power
activc disturbance rejection
closed-loop control
control methods
