The problem of satisfactory PID control for a class of stochastic systems with constraints on dynamic error coefficient, steady-state output variance and relative stability margin is considered.
研究一类随机系统具有期望的动态误差系数、稳态输出方差和相对稳定裕度约束的满意PID控制问题。
But if single neuron PID controller designed in terms of BPNN Theory is adopted, the control effect is not satisfactory because the learning rate and speed of convergence are slow.
使用常规pid控制很难满足手指精确位置控制的要求，而采用依据BPNN原理设计成的常规单神经元pid控制器又因学习速率低，收敛速度慢，控制效果不能令人满意。
The experiment shows that basic PID control can gat the satisfactory result.
实验表明，基本PID控制在控制系统中已经能够取得基本满意的效果。
Inside the gyro, object's large time lag and all kinds of unmeasurement disorders are ubiquitous and hard to control. The traditional PID control can hardly get satisfactory control result.
在陀螺内部，对象的时滞、各种不可测干扰等都是普遍存在的，也是较难控制的，常规的PID控制难以得到满意的控制效果。
However, variable air volume system itself is strongly coupled and nonlinear, the traditional PID controller is usually difficult to achieve satisfactory control effect.
但由于变风量空调系统本身的强耦合、非线性等特点，传统PID控制往往难以达到满意的控制效果。
Due to the temperature object is delay, the control result is not very satisfactory for the control results of traditional PID, fuzzy control, or neural network control.
由于该温度对象具有滞后特性，采用传统的PID控制、模糊控制或神经网络控制等单一的控制策略效果并不十分理想。
PID control is the most common control method used in industrial process control, mainly because, despite their simplicity, they can assure satisfactory performances for a wide range of processes.
PID控制是工业过程控制中应用最广泛的方法，因为这种控制策略不仅具有简单的控制结构，而且在许多过程控制应用中都能够获得满意的控制效果。
DO control in the biological wastewater treatment is a nonlinear process. It is difficult to get a satisfactory control result with the traditional PID control method.
污水生化处理一般以控制溶解氧为手段，但这是一个非线性过程，采用传统PID控制难以实现优化控制。
DO control in the biological wastewater treatment is a nonlinear process. It is difficult to get a satisfactory control result with the traditional PID control method.
污水生化处理一般以控制溶解氧为手段，但这是一个非线性过程，采用传统PID控制难以实现优化控制。
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