A k-step predictive scheme for speed control of diesel driven power-plants
A k-step predictive scheme for speed control of diesel driven power-plants
复制标题
柴油发电机组速度控制的 k 步预测方案
DOI：
10.1109/icps.1991.153068
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
G. Hope
中科院分区：
文献类型：
--
作者：
S. Roy;O. P. Malik;G. Hope
提出了一种柴油机原动机自适应调速方案。柴油原动机具有非线性时变参数的特点，包括非线性输入死区变化，在燃油喷射和发动机扭矩产生之间引入未知延迟。传统的比例积分（PI）控制器难以控制这类对象。结果表明，假设存在一个附加的系统时间常数，可以得到系统参数和死区时间的显式估计。该算法收敛速度快。得到的预测器可以用来建立一个k步超前预测控制器。研究提出了比较自适应方案的性能与一个固定的，调谐PI控制器。该算法具有足够的灵活性，可以在广泛的下垂设置下运行，并且同样适用于各种运行条件
An adaptive speed control scheme for diesel prime-movers is presented. Diesel prime-movers are characterized by nonlinear, time-varying parameters, including a nonlinear input dead-time variation that introduces an unknown delay between the injection of fuel and the production of engine torque. Such plants are difficult to control by conventional proportional-integral (PI) controllers. It is shown that by assuming the existence of an additional system time-constant, an explicit estimate of the plant parameters and dead-time can be obtained. The algorithm converges quickly. The resulting predictor can then be used to set up a k-step-ahead predictive controller. Studies are presented to compare the performance of the adaptive scheme to that of a fixed, tuned PI controller. The algorithm is shown to be flexible enough to operate under a wide range of droop settings, and equally applicable to various operating conditions.<<ETX>>