基于matlab的电磁场仿真与分析

电磁场问题往往较为抽象，并且计算也相对比较复杂。为此，借助计算机软件对复杂问题进行求解的重要性也得到凸显。本文通过两个例子，着重介绍了matlab在电磁场仿真与数值分析中的应用。结果表明这一方法具有计算效率高，能使抽象的场的问题具体化的优点。     

基于Matlab的制芯机器人夹持器稳定性研究与分析

由于铸造厂制芯机器人的工作环境恶劣,机器人抓取砂芯的稳定性较差,时常出现掉砂芯、夹伤砂芯的问题。针对上述问题建立以夹持器、气压、机械振动的系统数学模型,采用高阶系统极点在[s]平面的分布法来判定该系统的稳定性。在确保高阶系统极点值不变的情况下,通过改变系统的零点值来观察零点值对系统稳定性、振荡衰减时间的影响。用Matlab的pzmap和impulse函数分别对系统的零点、极点分布和零点值的不同对系统响应进行仿真,运用仿真结果与现场试验进行优化参数,结果表明采用一种刚度与柔度各为1/2的夹持器对制芯机器人的稳定性具有较好优化效果。     

Simulation of integrated novel PSA/EHP/C process for high-pressure hydrogen recovery from Coke Oven Gas

This paper introduces a novel Coke Oven Gas (COG) hydrogen purification/compression system based on the technologies of Pressure Swing Adsorption (PSA) and Electrochemical Hydrogen Purification and Compression (EHP/C). As the EHP/C tolerates O₂, N₂ and CH₄ impurities, PSA can be utilized solely for CO and CO₂ removal (other COG impurities were not considered in this work). A relaxation of PSA hydrogen purity could significantly enhance its recovery rate. In this study, the suitability of traditional hydrogen PSA as part of the hybrid PSA/EHP/C approach was investigated. Aspen Adsorption and Matlab were used to model the PSA and EHP/C systems, respectively. The effect of adsorption pressure, purge-to-feed-ratio (P/F-ratio) and adsorption time within cycle on PSA performance is reported. This study found that breakthrough of non-detrimental components is typically accompanied with poisonous CO. Hence, the CO removal with traditional H₂-PSA resulted into high purity product. In a two-bed PSA, 36.3% of hydrogen was recovered at 99.9988% purity and 0.18 ppm CO. Subsequently, as a result, the EHP/C purification capability was merely utilized, but polished this hydrogen to >99.999% purity. Simultaneously, hydrogen was isothermally compressed to 20 MPa, consuming a marginal 2.42 kWh/kg. Compared to mechanical compression, this is 31.6% more energy efficient. Recovering hydrogen from by-product COG was found to save 0.5 kg CO₂/kg H₂ compared to hydrogen produced from natural gas. Conventional hydrogen PSA, utilizing 70% Activated Carbon and 30% Molecular Sieve 5A, was found not to be effective to target the removal of CO specifically. To increase synergy between PSA and EHP/C, the PSA requires adequate design and operation using appropriate adsorbents and cycle steps to target elimination of CO. An increased EHP/C catalyst tolerance for CO also contributes to higher flexibility.     

多维度教学策略在信号与系统中探究

在新工科背景下，围绕以学生为中心，本文提出了一种多维度线上线下混合式教学策略在“信号与系统”课程中的探究与实践。整体流程主要包括课前自主学习、课上知识消化及课后教学反馈。该策略通过多个维度的教学方法对“信号与系统”课程中的知识点进行展示，显示了此教学策略能够达到良好的教学效果，且本文提出的教学方法也具有良好的推广作用。     

Matlab/Simulink的SPS模块在电力系统输电线路中的应用

介绍了电力系统模型和Matlab/Simulink中的SPS模块的主要功能,通过对单机-无穷大系统的短路故障的仿真分析,得到了理想的仿真效果。     

双柱塞砂浆泵补偿机构的运动分析和仿真

介绍了双柱塞砂浆泵的工作原理，通过对采用摆动滚子从动件的凸轮机构的双柱塞砂浆泵的工作凸轮机构和补偿凸轮机构进行运动学分析，建立了砂浆泵运动机构的仿真模型．用Matlab软件进行了仿真分析，进一步验证了运动学分析模型的正确性．     

傅立叶算法在三相无功功率检测中的研究

无功功率的实时、准确检测,对保证电网经济、安全运行和无功功率补偿都有重要意义。通过对各种无功功率检测方法的分析、比较,提出了一种基于傅立叶算法的无功功率检测方法。仿真结果表明,该算法能够完成实时准确的无功功率检测,同时也验证了该算法的正确性和可行性。     

可控变流器的谐波抑制与MATLAB仿真

电力电子装置产生的谐波已成为电力系统的主要谐波污染源。对带直流电动机负载的可控变流器进行谐波分析,得出结论:三相桥式相控整流电路相当于一个包含高次谐波的电流谐波源。提出了相应的谐波抑制策略。用Matlab/Simulink软件包建立仿真模型,给出实验结果。仿真结果表明措施是可行的。     

基于VC++和Matlab的球面孔系位置测量

基于VC 与Matlab混合编程的球面孔位置测量,先采集基准孔图像,经图像处理确定原点坐标.VC 控制补测件运动,使被测孔转至测量位,并驱动CCD采集圆孔图像.通过Matlab引擎实现VC 和Matlab间的数式完成被测孔与基准孔间的空间位置测量.     

电工电子技术CAI系统的实现

电工电子技术计算机辅助教学(CAI)系统,采用Matlab语言实现.系统包括电工技术、模拟电子、数字电子三类模块.系统以Matlab语言GUI设计系统界面,根据电工电子技术相关求解方程式,利用Matlab语言M函数、S函数编写程序求解并输出数字结果,同时利用SIMULINK建立电路仿真模型.