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交流接触器触头电参数测试系统 被引量:1
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作者 张文义 佟为明 +1 位作者 郑艳明 张荣岭 《低压电器》 2001年第3期42-44,60,共4页
介绍了一种用微机实现的交流接触器触头电参数测试系统 ,分析了交流接触器触头的接触电阻和温升的测量原理 ,简述了测试系统的硬件结构和软件流程。该系统根据被测信号的特点进行数据采集、数据处理和数据显示 ,实现了操作的可视化和简... 介绍了一种用微机实现的交流接触器触头电参数测试系统 ,分析了交流接触器触头的接触电阻和温升的测量原理 ,简述了测试系统的硬件结构和软件流程。该系统根据被测信号的特点进行数据采集、数据处理和数据显示 ,实现了操作的可视化和简易化。 展开更多
关键词 交流接触器 接触 触头 电参数测试系统
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测试系统继电器电阻值异常的工程学分析及解决 被引量:2
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作者 戴炜哲 《电子工程师》 2007年第10期9-11,23,共4页
介绍了对于测试系统接触测试项目出现异常所做的分析,最终定位问题出现在测试系统继电器的电阻值的异常,经过分析和试验,其异常的原因归结为测试系统针对特定结构的被测产品因为考虑不周而使悬空的测试线路带有超过允许范围的电荷,导致... 介绍了对于测试系统接触测试项目出现异常所做的分析,最终定位问题出现在测试系统继电器的电阻值的异常,经过分析和试验,其异常的原因归结为测试系统针对特定结构的被测产品因为考虑不周而使悬空的测试线路带有超过允许范围的电荷,导致在之后的继电器开关过程中对触点造成伤害。文中提出了解决方案并通过实践验证解决方案的可行性。 展开更多
关键词 电参数测试系统 阻值
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吉时利(Keithley)与Novellus共同开发自动诊断测试
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《电子工业专用设备》 2003年第3期41-41,共1页
关键词 吉时利仪器公司 无线通讯集成电参数测试系统 自动诊断测试 Novellus公司 S600半导体直流参数测试平台
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Virtual test system for permanent-magnet DC motor 被引量:1
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作者 崔淑梅 王悦 +3 位作者 柴凤 吴红星 刘宝廷 程树康 《Journal of Harbin Institute of Technology(New Series)》 EI CAS 2003年第2期200-204,共5页
In order to obtain the primary parameters and operating characteristics of a DC motor without directly measuring its torque and rational speed, it is proposed to use a PC and a data acquisition card to acquire both th... In order to obtain the primary parameters and operating characteristics of a DC motor without directly measuring its torque and rational speed, it is proposed to use a PC and a data acquisition card to acquire both the dynamic and static data of armature current to establish the performance of a DC permanent magnet motor. The accuracy and validity of this virtual test system proposed were verified by comparing the measurements made with the system proposed with the measurements made with conventional torque meters. It is concluded from the results of comparison that from the mathematic model established for the DC permant magnet motors, both major parameters and operating characteristics can be directly established for the DC motors without measuring their torques and rotational speed, a perfect on line measurement and test system has been established for the DC permanent magnet motors using the theory of virtual test system. The system proposed features shorter test time, higher efficiency and lower cost. 展开更多
关键词 virtual system MOTOR test parameter identify
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Optimal Power Flow Solution Using Particle Swarm Optimization Technique with Global-Local Best Parameters 被引量:4
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作者 P. Umapathy C. Venkatasehsiah M. Senthil Arumugam 《Journal of Energy and Power Engineering》 2010年第2期46-51,共6页
This paper proposes an efficient method for optimal power flow solution (OPF) using particle swarm optimization (PSO) technique. The objective of the proposed method is to find the steady state operation point in ... This paper proposes an efficient method for optimal power flow solution (OPF) using particle swarm optimization (PSO) technique. The objective of the proposed method is to find the steady state operation point in a power system which minimizes the fuel cost, while maintaining an acceptable system performance in terms of limits on generator power, line flow limits and voltage limits. In order to improvise the performance of the conventional PSO (cPSO), the fine tuning parameters- the inertia weight and acceleration coefficients are formulated in terms of global-local best values of the objective function. These global-local best inertia weight (GLBestlW) and global-local best acceleration coefficient (GLBestAC) are incorporated into PSO in order to compute the optimal power flow solution. The proposed method has been tested on the standard IEEE 30 bus test system to prove its efficacy. The results are compared with those obtained through cPSO. It is observed that the proposed algorithm is computationally faster, in terms of the number of load flows executed and provides better results than the conventional heuristic techniques. 展开更多
关键词 Particle swarm optimization swarm intelligence optimal power flow solution inertia weight acceleration coefficient.
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