Lumped parameter systems are described by ordinary differential equations ; while distributed parameter systems are described by partial differential equations 集中參數(shù)系統(tǒng)用常微分方程描述,而分布參數(shù)系統(tǒng)用偏微分方程描述。
However , the circuit theory of the field theory is about lumped parameter circuit , but it has n ' t studied distributed parameter circuit 但由此基本定律推論和演繹得到的線性和非線性的電路理論都是在集中參數(shù)的條件下成立的,對分布參數(shù)電路還沒有研究。
The last proposed method is based on the distributed parameter model , the algorithm utilizes searching and iteration methods to locate the fault point 第三種方法采用電纜線路的分布參數(shù)線路模型,根據(jù)功率平衡原理推導(dǎo)出故障測距方程,并通過搜索迭代方法解之。
Models of two classes of distributed parameter switched systems are set up through combining the modelling methods of switched systems with those of the distributed parameter systems 結(jié)合切換系統(tǒng)和分布參數(shù)系統(tǒng)的建模方法,建立了兩類分布參數(shù)切換系統(tǒng)的模型。
Circulating fluidized bed boiler is a control object that has points of distributing parameter and nonlinear and time - variable and strong delay and coupling tightly multivariable 循環(huán)流化床鍋爐是一個分布參數(shù)、非線性、時變、大遲延和多變量耦合緊密的控制對象。
An electrical resistance furnace is a nonlinear system , changing with time and distributed parameter . it is difficult to express its characteristic using precise mathematic model 電加熱爐是一個非線性、時變和分布參數(shù)的系統(tǒng),用精確的數(shù)學模型表示其特性顯然是十分困難的。
Meanwhile , in a distributed parameter approach a steady - state model of condenser and evaporator has also been established in the form of concentric counter - flow heat exchangers 采用分布參數(shù)法,建立了復(fù)合螺旋套管式冷凝器和蒸發(fā)器的穩(wěn)態(tài)模型,并編制了冷凝器和蒸發(fā)器的設(shè)計和模擬軟件。
The transmission line equation is the basic equation of the transmission line theory and is an important equation from lumped parameter circuit to distributed parameter circuit in the circuit theory 傳輸線方程是傳輸線理論的基本方程,是電路理論中由集中參數(shù)電路過渡到分布參數(shù)電路的一個重要方程式。
By means of the stability analysis on switched systems , the stability of two classes of distributed parameter switched systems is analyzed , and the sufficient conditions of exponential stability are given 運用切換系統(tǒng)的穩(wěn)定性分析方法,對兩類分布參數(shù)切換系統(tǒng)的穩(wěn)定性進行分析,得出了指數(shù)穩(wěn)定的充分條件。
Aiming at the effects of distributed capacitance on accurate fault location , a new method based on the distributed parameter model , where the two - terminal data of the transmission lines are utilized , is proposed 摘要基于線路的分布參數(shù)模型,并且利用線路兩端工頻電氣量和相模變換,提出了在模域中進行故障測距的算法。