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品质
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    A Method of Improving Performance of Fuzzy Controller
    提高模糊控制品质的一种方法
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    PERFORMANCE ANALYSIS OF ARBITRARY STOCHASTIC PETRI NETS BASED ON BEHAVIOR EXPRESSION
    基于行为表达式的任意随机Petri网的品质分析
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    A simulation with an example of 670t/h boiler is carried out,the simulation results show that its control performance is better than the double impulse control.
    以670 t/h蒸发量的锅炉为对象进行仿真,仿真结果表明,其控制品质比传统的双冲量方式好.
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    Compared with PID controller HSIC controller has more effective control 、improves the performance of robot.
    通过与PID控制器的实验比较,结果表明HSIC控制器有更好的控制品质,改善了机器人的运动性能。
    The simulation results show that the Dynamic Matrix Control algorithm applied to the multivariable DC servo motor control gives good control performance, and the DMC control strategy is more effective than PID control.
    仿真结果表明,动态矩阵控制算法在多变量直流伺服电机模型控制中取得了很好的控制效果,比传统的PID算法控制具有更好的控制品质
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This paper describes a method of measuring the small frequency shift of a resonant cavity, as a perturbation is introduced in it. This is an important problem on the measurement of R/Q of a cavity or the interaction impedance of a slow wave Structure. The method is based on the principle of automatic frequency tunning, i.e. tunning a reflex klystron oscillator tracking the resonant frequency of the cavity to be measured automatically by means of a discriminator. The oscillation frequency of this system and...

This paper describes a method of measuring the small frequency shift of a resonant cavity, as a perturbation is introduced in it. This is an important problem on the measurement of R/Q of a cavity or the interaction impedance of a slow wave Structure. The method is based on the principle of automatic frequency tunning, i.e. tunning a reflex klystron oscillator tracking the resonant frequency of the cavity to be measured automatically by means of a discriminator. The oscillation frequency of this system and the frequency shift after introducing the perturbation are then measured by a heterodyne frequency meter. Analysis and exprimental result show that, by this method, the minimum discriminating frequency shift is 10-5-5× 10-6 (relative value) in S-band, as the Q0.of the cavity is 500-1000.. The tracking error is about 2%.

本文叙述了一种当谐振系统中引入摄动以后,量测其谐振频率微小偏移的方法。这 是量测空腔谐振器和慢波系统耦合阻抗时所遇到的主要问题。 所用的方法基于自动频率微调的原理,即利用一套鉴频系统使反射速调管的振荡频 率自动地跟踪到被测腔的谐振频率。然后利用一高精度外差式频率计来测定该振荡系统 的振荡频率和经摄动后的频率偏移 计算和实验表明,用本文所述方法,当被测腔固有品质数为500~1000时,在S 波段可以分辨的最小频偏相对值达10-5~5×10-6跟踪误差约为2%。

The problems of stability in the whole, stability in the large with its attracting region, and the quality problem of nonlinear control systems are studied by the Lyapunov's method. The functional relation of the nonlinear element is assumed to be piece-wise linear, continuous or not, and may possess two-valued intervals, but is linear at the origin. Thus the whole phase space can be divided into three simple regions in each of which the differential equations of the system are essentially linear. As a result...

The problems of stability in the whole, stability in the large with its attracting region, and the quality problem of nonlinear control systems are studied by the Lyapunov's method. The functional relation of the nonlinear element is assumed to be piece-wise linear, continuous or not, and may possess two-valued intervals, but is linear at the origin. Thus the whole phase space can be divided into three simple regions in each of which the differential equations of the system are essentially linear. As a result the stability conditions contain also parameters of the nonlinearities.

本文利用李亚普诺夫方法研究非线性控制系统的全局稳定性、大范围稳定和其吸引区的寻求以及一个品质问题.对非线性元件采用了分段线性的模型,从而使得到的条件中也包含有非线性特性的参数.

In this paper a series-shunt compensation servo system which can be realized with-out much difficulties is derived from a typical equivalent system configuration. Theanalysis indicates that the proposed series-shunt compensation system can have a gooddynamic performance. Because the forms of compensating networks are fixed by the sys-tem configuration, the problem of system design is simplified to be the selection of para-meters. The industrial testing result illustrates that the performance of this servo systemis...

In this paper a series-shunt compensation servo system which can be realized with-out much difficulties is derived from a typical equivalent system configuration. Theanalysis indicates that the proposed series-shunt compensation system can have a gooddynamic performance. Because the forms of compensating networks are fixed by the sys-tem configuration, the problem of system design is simplified to be the selection of para-meters. The industrial testing result illustrates that the performance of this servo systemis good.

本文从典型等值结构图出发,推得一种易于实现的串并联校正随动系统。分析表明,这种串并联校正系统具有度好的动态品质。由于校正网络的形式事先已经确定,因而可使系统的设计简化为对参数的选择。按照本文的方法所设计的系统,在工业试验中得到了较好的结果。

 
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