自动控制原理专业词汇(共5页).doc

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1、精选优质文档-倾情为你奉上自动控制原理专业词汇中文英文自动控制automatic control；cybernation自动控制系统automatic control system自动控制理论automatic control theory经典控制理论classical control theory现代控制理论modern control theory智能控制理论intelligent control theory开环控制open-loop control闭环控制closed-loop control输入量input输出量output给定环节given unit/element比较环节comp

2、aring unit/element放大环节amplifying unit/element执行环节actuating unit/element控制环节controlling unit/element被控对象(control) plant反馈环节feedback unit/element控制器controller扰动/干扰perturbance/disturbance前向通道forward channel反馈通道feedback channel恒值控制系统constant control system随动控制系统servo/drive control system程序控制系统programmed

3、 control system连续控制系统continuous control system离散控制系统discrete control system线性控制系统linear control system非线性控制系统nonlinear control system定常/时不变控制系统time-invariant control system时变控制系统time-variant control system稳定性stability快速性rapidity准确性accuracy数学模型mathematical model微分方程differential equation非线性特性nonlinear

4、 characteristic线性化处理linearization processing泰勒级数Taylor series传递函数transfer function比例环节proportional element积分环节integrating element一阶惯性环节first order inertial element二阶惯性环节second order inertial element二阶震荡环节second order oscillation element微分环节differentiation element一阶微分环节first order differentiation ele

5、ment二阶微分环节second order differentiation element延迟环节delay element动态结构图dynamic structure block串联环节serial unit并联环节parallel unit信号流图signal flow graph梅逊增益公式masons gain formula 时域分析法time domain analysis method性能指标performance index阶跃函数step function斜坡函数ramp function抛物线函数parabolic function /acceleration funct

6、ion冲击函数impulse function正弦函数sinusoidal function动态/暂态响应transient response静态/稳态响应steady-state response延迟时间delay time上升时间rise time峰值时间peak time调节时间settling time最大超调量maximum overshoot稳态误差steady-state error无阻尼undamping欠阻尼underdamping过阻尼overdamping特征根eigen root极点pole零点zero实轴real axis虚轴imaginary axis稳态/静态分量

7、steady-state component瞬态/暂态/动态分量transient component运动模态motion mode衰减attenuation系数coefficient初相角initial phase angle响应曲线response curve主导极点dominant pole劳斯稳定判据Routh stability criterionS平面S plane 胡尔维茨稳定判据Hurwitz stability criterion测量误差measurement error扰动误差agitation error结构性误差structural error偏差deviation根轨

8、迹root locus常规根轨迹routine root locus根轨迹方程root locus equation幅值magnitude幅角argument对称性symmetry分离点separation point会合点meeting point渐近线asymptote出射角emergence angle入射角incidence angle广义根轨迹generalized root locus零度根轨迹zero degree root locus偶极子dipole频域分析法frequency-domain analysis method频率特性frequency characteristi

9、c极坐标系polar coordinate system直角坐标系rectangular coordinate system幅频特性magnitude-frequency characteristic相频特性phase-frequency characteristic幅相频率特性magnitude-phase frequency characteristic最小相位系统minimum phase system非最小相位系统nonminimum phase system奈奎斯特稳定判据Nyquist stability criterion伯德定理Bode theorem稳定裕度stability

10、 margin幅值裕度magnitude margin相位/相角裕度phase margin对数幅频特性log magnitude-frequency characteristic无阻尼自然震荡角频率undamped oscillation angular frequency阻尼震荡角频率damped oscillation angular frequency阻尼角damping angle 带宽频率bandwidth frequency穿越/截止频率crossover/cutoff frequency谐振峰值resonance peak系统校正system compensation超前校正l

11、ead compensation滞后校正lag compensation自激震荡self-excited oscillation死区特性dead zone characteristic饱和特性saturation characteristic间隙特性backlash characteristic描述函数法describing function method相平面法phase plane method采样控制系统sampling control system数字控制系统digital control system频谱frequency spectrum采样定理sampling theorem信号

12、重现signal recurrence拉氏变换Laplace transformZ变换Z transform终值定理final-value theorem差分方程difference equation迭代法iterative method脉冲传递函数pulse transfer function零阶保持器zero-order holder映射mapping方框图block diagram伯德图Bode diagram特征方程characteristic equation可控性controllability临界阻尼critical damping阻尼常数damping constant阻尼比da

13、mping ratio初始状态initial state初值定理initial-value theorem反Z变换inverse Z-transformation负反馈negative feedback正反馈positive feedback尼科尔斯图Nichols chart部分分式展开partial fraction expansion幅角原理argument principle相对稳定性relative stability共振频率resonant frequency劳斯表Routh tabulation/array奇点singularity渐进稳定性asymptotic stability控制精度control accuracy临界稳定性critical stability耦合coupling解耦decoupling专心-专注-专业