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1.Based on the Biot Law and combined with the Concept of Solid angle, calculating the line integral of current-carrying clcsed circuit which generates magnitic induction B around many closed circuits 1:(1) The integral circuit 1 cross the current-carrying closed circuit L;
以毕奥定律为基础,结合立体角的概念,计算载流闭合回路L产生的磁感应强度B沿以下几种回路l的积分: (1)积分回路l穿过载流回路L;收藏指正
2.Abstract: It is expounded how to apply correctly convolution integral to circuit analysis and some key problems are discussed that should be paid attentions to in practical operation.
文摘:论述了如何把卷积积分正确地应用到电路分析中，并讨论了在电路分析中应用卷积积分要注意的关键问题.收藏指正
3.The authors design the modules constituting a dynamic simulation model for unified power flow controller (UPFC), including the module generating the signal for sinusoidal pulse width modulation (SPWM), the control module of voltage source converter (VSC), the proportional- integral (PI) control circuit of UPFC controller.
设计了组成统一潮流控制器(UPFC)的动态仿真模型的各个模块,包括正弦脉宽调制(SPWM)信号产生模块、电压源变换器(VSC)控制模块和UPFC控制器的比例积分(PI)控制电路。收藏指正
4.The simulation analyse of the frequency characteristics was presented, based on the distributed parameter circuit model of Rogowski coil. The result proved that the frequency bandwidth definition formula of self-integral type Rogowski coil based on the RLC simple circuit model, can’t completely reflect the factual frequency characteristics.
利用Rogowski线圈的分布参数电路模型对其频率特性进行仿真分析，结果表明：基于RLC简单电路模型给出的自积分型Rogowski线圈的频带宽度确定公式并不能完全反映线圈的实际频率特性。收藏指正
5.After the integral DCS modification of No. 1 generator set in Zhujiang power plant, the control tactics of trip circuit for pulverizing system, test and the improvement of related circuit were introduced.
摘要介绍广州珠江发电厂1号机组DCS一体化改造后，制粉系统跳闸回路的控制策略、试验及相关回路修改情况。收藏指正
6.PI control has been widely used for the speed control of speed control system . However, a relatively new strategy, called integral proportional control, offers some advantages over proportional integral control. In this paper, the comparative study of PI and IP control strategy, using analog based circuit, is presented.
比例积分（PI）控制已被广泛应用于速度控制系统．一种较新的控制策略积分比例（IP）控制却具有超出PI控制的优点．文中对基于模拟电路的这两种控制策略及方案进行了对比研究．研究结果表明，IP控制不但具有一些明显超过PI控制的优点，而且保留了PI控制的优点．收藏指正
7.A phase-lock circuit composed of special phase-lock CMOS chip CD 4046 and frequency dividing chip CD 4040 is designed,with a simple external integral loop filter composed of a resistance and a capacitance.
用CMOS专用数字锁相芯片CD4046(内部集成有鉴相器和压控振荡器)和分频芯片CD4040构成了实际锁相电路,外加由电阻和电容形成的简单的片外积分环路滤波器。收藏指正
8.After carrying out great deal of related researches on this subject home and abroad, we developed "High-speed Acquisition and Processing System of Switching Apparatus Experimental Parameters" , which can acquire and process many important parameters such as circuit power factor, power frequency, joule integral(I t), arching time and the voltage between two contacts, etc.
在分析国内外研究现状后,我们研制了“开关电器试验参数高速采集与处理系统”,完成对电路功率因数、电源频率、焦耳积分(I~2t)、燃弧时间以及触头两端电压等主要参数的高速采集和处理。收藏指正
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